Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > MO Providers

Dr. Geraldine A. Ryan, MD

(Geraldine A. Ryan, MD)

(120 Ratings)

Specializes in: General Pediatrics and Internal Medicine (Adult Medicine)

St. Louis University School of Medicine (1988)

2223 Technology Drive Suite 40 Mercy Clinic Primary Care
O Fallon, MO 63368

(636) 755-4400

Dr. Geraldine A. Ryan, MD is a pediatrician in O Fallon, MO specializing in general pediatrics and internal medicine (adult medicine). She graduated from St. Louis University School of Medicine in 1988 and has 38 years of experience. Dr. Geraldine A. Ryan, MD is affiliated with Mercy Health System, Mercy Hospital St. Louis, MERCY CLINIC EAST COMMUNITIES and Mercy Clinic Primary Care - Winghaven.

Office Locations

2223 Technology Drive Suite 40 Mercy Clinic Primary Care
O Fallon, MO 63368

open_in_new

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO during 2012 were lab tests.

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

doctor visit	299
lab tests	35

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO during 2013 were lab tests.

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

doctor visit	288
lab tests	23

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Geraldine A. Ryan, MD.

**Gender**
Male	43
Female	116

**Age**
From 65 to 74	106
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Geraldine A. Ryan, MD in 2013

Hypertension	53
High Cholesterol	35
Stroke	0
Ischemic Heart Disease	23
Depression	18
Chronic Kidney Disease	11
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	7
Diabetes	18
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO during 2014 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

doctor visit	320
lab tests	21
preventive care	26
vaccines	26

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Geraldine A. Ryan, MD.

**Gender**
Male	36
Female	123

**Age**
From 65 to 74	105
From 75 to 84	31
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Geraldine A. Ryan, MD in 2014

Hypertension	53
High Cholesterol	34
Stroke	0
Ischemic Heart Disease	21
Depression	15
Chronic Kidney Disease	9
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	19
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO during 2015 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

doctor visit	327
lab tests	21
preventive care	71
vaccines	71

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Geraldine A. Ryan, MD.

**Gender**
Male	108
Female	268

**Ethnicity**
Non-Hispanic White	354
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	258
From 75 to 84	64
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Geraldine A. Ryan, MD in 2015

Hypertension	51
High Cholesterol	32
Stroke	0
Ischemic Heart Disease	18
Depression	16
Chronic Kidney Disease	10
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	7
Chronic Obstructive Pulmonary Disease	0
Diabetes	15
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO during 2016 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

doctor visit	321
lab tests	13
preventive care	64
vaccines	64

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Geraldine A. Ryan, MD.

**Gender**
Male	45
Female	135

**Ethnicity**
Non-Hispanic White	165
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	33
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Geraldine A. Ryan, MD in 2016

Hypertension	51
High Cholesterol	28
Stroke	0
Ischemic Heart Disease	16
Depression	16
Chronic Kidney Disease	10
Asthma	7
Osteoperosis	0
Atrial Fibrilation	7
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	16
Dementia	0
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO during 2017 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

doctor visit	358
lab tests	18
preventive care	63
vaccines	63

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Geraldine A. Ryan, MD.

**Gender**
Male	52
Female	133

**Ethnicity**
Non-Hispanic White	174
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	119
From 75 to 84	35
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Geraldine A. Ryan, MD in 2017

Hypertension	48
High Cholesterol	17
Stroke	0
Ischemic Heart Disease	17
Depression	25
Chronic Kidney Disease	21
Asthma	0
Osteoperosis	6
Atrial Fibrilation	0
Heart Failure	7
Chronic Obstructive Pulmonary Disease	0
Diabetes	17
Dementia	0
Cancer	6

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO during 2018 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

doctor visit	356
lab tests	15
preventive care	52
vaccines	52

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Geraldine A. Ryan, MD.

**Gender**
Male	51
Female	132

**Ethnicity**
Non-Hispanic White	170
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	119
From 75 to 84	38
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Geraldine A. Ryan, MD in 2018

Hypertension	54
High Cholesterol	41
Stroke	0
Ischemic Heart Disease	17
Depression	19
Chronic Kidney Disease	21
Asthma	0
Osteoperosis	0
Atrial Fibrilation	8
Heart Failure	8
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO during 2019 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

doctor visit	334
lab tests	16
preventive care	61
vaccines	61

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Geraldine A. Ryan, MD.

**Gender**
Male	52
Female	133

**Age**
From 65 to 74	124
From 75 to 84	35
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Geraldine A. Ryan, MD in 2019

Hypertension	53
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	20
Depression	19
Chronic Kidney Disease	21
Asthma	0
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	6
Chronic Obstructive Pulmonary Disease	0
Diabetes	18
Dementia	6
Cancer	6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO during 2020 were preventive care and vaccines.

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

doctor visit	253
preventive care	59
vaccines	59

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Geraldine A. Ryan, MD.

**Gender**
Male	61
Female	124

**Ethnicity**
Non-Hispanic White	174
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	128
From 75 to 84	36
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Geraldine A. Ryan, MD in 2020

Hypertension	42
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	17
Depression	17
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	6
Atrial Fibrilation	6
Heart Failure	9
Chronic Obstructive Pulmonary Disease	0
Diabetes	21
Dementia	0
Cancer	7

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO during 2021 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

doctor visit	342
lab tests	14
preventive care	70
vaccines	50

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Geraldine A. Ryan, MD.

**Gender**
Male	71
Female	159

**Ethnicity**
Non-Hispanic White	217
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	149
From 75 to 84	57
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Geraldine A. Ryan, MD in 2021

Hypertension	54
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	18
Depression	21
Chronic Kidney Disease	26
Asthma	6
Osteoperosis	9
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	6
Diabetes	19
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO during 2022 were preventive care and vaccines.

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

doctor visit	255
preventive care	48
vaccines	48

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Geraldine A. Ryan, MD.

**Gender**
Male	60
Female	132

**Ethnicity**
Non-Hispanic White	180
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	50
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Geraldine A. Ryan, MD in 2022

Hypertension	67
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	17
Depression	16
Chronic Kidney Disease	23
Asthma	9
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	6
Chronic Obstructive Pulmonary Disease	6
Diabetes	21
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Geraldine A. Ryan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Geraldine A. Ryan, MD treated as a pediatrician in O Fallon, MO were preventive care, vaccines and lab tests.

doctor visit	313
lab tests	19
preventive care	57
vaccines	54

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Geraldine A. Ryan, MD.

**Gender**
Male	52
Female	132

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	130
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	36
85 and over	0
Less than 65	0
65 to 74	122

Average of Total of Conditions of Medicare patients treated by Dr. Geraldine A. Ryan, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Geraldine A. Ryan, MD treated were hypertension, high cholesterol, depression and diabetes.

Hypertension	47
High Cholesterol	34
Stroke	0
Ischemic Heart Disease	16
Depression	16
Chronic Kidney Disease	16
Asthma	2
Osteoporosis	3
Heart Failure	4
Chronic Obstructive Pulmonary Disease	1
Diabetes	16
Atrial Fibrillation	4
Cancer	8
Dementia	1

Education & Training

Dr. Geraldine A. Ryan, MD graduated from St. Louis University School of Medicine in 1988. She completed residency at St. Louis University (SLU) Affiliated Hospitals. She is certified by the American Board of Pediatrics and has a state license in Missouri.

Medical School: St. Louis University School of Medicine (1988)

Residency: St. Louis University (SLU) Affiliated Hospitals

Board Certification: American Board of Pediatrics

Licensed In: Missouri

Affiliations & Hospitals

Dr. Geraldine A. Ryan, MD is associated with these hospitals and organizations:

Mercy Health System

Mercy Hospital St. Louis

MERCY CLINIC EAST COMMUNITIES

Mercy Clinic Primary Care - Winghaven

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Geraldine A. Ryan, MD appears to accept the following insurance providers: WellCare Medicare Advantage, United Healthcare, Aetna, Humana, Cigna, Anthem BlueCross BlueShield, HealthLink, Health Net Federal Services, HFN, Inc., MultiPlan/PHCS, Home State Health, Medica, Healthy Blue (formerly Missouri Care), NHC Advantage, Live360 (Health Choices Network), Sterling Medicare, Essence, PPHP (Provider Partners Health Plan) and Ascension Smart Health.

Insurance Accepted by Provider includes:

According to our sources, Dr. Geraldine A. Ryan, MD accepts the following insurance providers:

WellCare Medicare Advantage

United Healthcare

Aetna

Humana

Cigna

Anthem BlueCross BlueShield

HealthLink

Health Net Federal Services

HFN, Inc.

MultiPlan/PHCS

Home State Health

Medica

Healthy Blue (formerly Missouri Care)

NHC Advantage

Live360 (Health Choices Network)

Sterling Medicare

Essence

PPHP (Provider Partners Health Plan)

Ascension Smart Health

Ratings & Reviews

Dr. Geraldine A. Ryan, MD has an exceptional overall rating with an average of 4.93 out of 5 stars based on 120 ratings. We collect ratings and reviews of Dr. Geraldine A. Ryan, MD from all over the web to help you find the right in O Fallon, MO.

4.93

Overall Rating

(120 Ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. Geraldine A. Ryan, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Pfizer Inc.	$358 EUCRISA $99	COLOGUARD $74	CELEBREX $59	VIAGRA $41	LYRICA $33	Other $52
Lilly USA, LLC	$357 BASAGLAR $153	JARDIANCE $62	CIALIS $38	REYVOW $24	STRATTERA $24	Other $56
Novartis Pharmaceuticals Corporation	$288 ENTRESTO $271	Aimovig $17
GlaxoSmithKline, LLC.	$287 BREO $58	ARNUITY $52	FLOVENT $40	AREXVY $38	SHINGRIX $29	Other $70
Janssen Pharmaceuticals, Inc	$262 INVOKANA $107	XARELTO $103	INVOKAMET $51
Other	$1,769 Vesicare $178	Repatha $76	UBRELVY $74	Synthroid $66	NovoLog $63	Other $1,312

**Types of Payments**
Food and Beverage	$3,317
Consulting Fee	$4

Biography

Dr. Geraldine Ryan's medical specialty is general practice and general pediatrics. She is professionally affiliated with Mercy Hospital St. Louis. She graduated from St. Louis University School of Medicine and then she performed her residency at a hospital affiliated with St. Louis University (SLU). Dr. Ryan is rated 5.0 stars (out of 5) by her patients. She most likely takes Anthem, Blue California, and HFN, as well as other insurance carriers. Yext reports that she is closed to new patients at this time.