Carolyn Gretchen Ryan, D.O.
Family Medicine Physician · Warrington, PA
Carolyn Gretchen Ryan, D.O. is a family medicine physician with a practice address in Warrington, Pennsylvania, and NPI 1174603609, issued on Oct 17, 2006. Check the license (Pennsylvania OS007259L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Carolyn Gretchen Ryan
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS007259L PA
Self-reported in NPPES; status is on the state search - Practice location
- 847 Easton RD, Warrington, PA 18976
- Phone
- (215) 918-5555
- Enumerated
- Oct 17, 2006
- Record last updated
- Jun 23, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (215) 918-5560
- Medicare enrollment
- Enrolled (PECOS I20040503000545); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1989
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 847 Easton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rana Alneaimy, MDStudent in an Organized Health Care Education/Training Program1962031567
- Ifeanyi Arinze, MDStudent in an Organized Health Care Education/Training Program1982309993
- Ahsan Arshad, MDStudent in an Organized Health Care Education/Training Program1902657596
- Sean BaldwinPhysical Therapist1538641840
- Lawrence Barbera, MDPediatrics Physician1275528127
- Ramona BledeaStudent in an Organized Health Care Education/Training Program1639018021
Verify Carolyn Gretchen Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS007259LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average family medicine physician in 2024
3,829 Medicare Part D claims for 385 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 42 claims were for opioids.
Most prescribed
- Atorvastatin Calcium363 claims
- Lisinopril228 claims
- Amlodipine Besylate212 claims
- Rosuvastatin Calcium200 claims
- Levothyroxine Sodium194 claims
- Hydrochlorothiazide155 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $316.91
18 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Buxmont Medical Associates PCWarrington, PA
- Phoenix Rehabilitation And Health Services IncCranberry Twp, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carolyn Gretchen Ryan among 7,483 family medicine physician records in Pennsylvania
Carolyn Gretchen Ryan, D.O. is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1989 · median 2005 among the 4,529 with a school on file
- Record last updated2008 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 family medicine physician records list a practice address in Warrington
They are 11 of the 337 NPPES records with a practice address in Warrington, and 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Every provider in Warrington → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Elisabeth Cousens, MDWarrington, PA 189761922003433
- Robert Hermann, M.D.Warrington, PA 189761538161054
- Michelle Horn, D.O.Warrington, PA 189761770711350
- Carolyn Jeffcoat, MDWarrington, PA 189761245265354
- Wayne Li, D.O.Warrington, PA 189761538589288
- Lawrence Miller, D.O.Warrington, PA 189761821035148
- Stuart Rosan, DOWarrington, PA 189761194803627
- Richard Smayda, DOWarrington, PA 189761851344998
Common questions
What is Carolyn Gretchen Ryan, D.O.'s NPI number?
Carolyn Gretchen Ryan, D.O.'s National Provider Identifier (NPI) is 1174603609, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carolyn Gretchen Ryan, D.O. located?
The NPPES record lists a practice address at 847 Easton RD, Warrington, PA, 18976. Phone: (215) 918-5555. Providers update this record themselves, so call before visiting.
How can I verify Carolyn Gretchen Ryan, D.O.'s license?
NPPES lists Pennsylvania license number OS007259L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Carolyn Gretchen Ryan, D.O. prescribe under Medicare Part D?
In 2024, Carolyn Gretchen Ryan, D.O. had 3,829 Medicare Part D claims for 385 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.