NPPES file of Aug 9, 2026

Marilyn Ryan, M.D.

Endocrinology, Diabetes & Metabolism Physician · Paoli, PA

Marilyn Ryan, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Paoli, Pennsylvania, and NPI 1386733780, issued on Oct 12, 2006. Check the license (Pennsylvania MD025002E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386733780
Name
Marilyn Ryan
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
MD025002E PA
Self-reported in NPPES; status is on the state search
Practice location
21 Industrial Blvd, Paoli, PA 19301
Phone
(610) 251-0300
Enumerated
Oct 12, 2006
Record last updated
Mar 31, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(610) 251-0304
Medicare enrollment
Enrolled (PECOS I20050126000951); accepts Medicare assignment
Medical or professional school
State University Of Ny Upstate Medical University, 1979
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest endocrinology, diabetes & metabolism physician records → All 485 in Pennsylvania → Look up another NPI →

Also registered at 21 Industrial Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Philip Adelman, MDNeurology Physician1376594630
  2. Jamie Dillinger, C.R.N.P.Family Nurse Practitioner1003976895
  3. Stephen Fox, M.D., FACPHematology & Oncology Physician1386637338
  4. William Greer, M.D.Internal Medicine Physician1598722472
  5. Kristopher MedinaFamily Nurse Practitioner1124416185
  6. Jessica Mulhern, D.O.Physical Medicine & Rehabilitation Physician1720437403

Verify Marilyn Ryan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD025002E    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

64% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

4,312 Medicare Part D claims for 529 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.

  1. Marilyn Ryan4,312
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium560 claims
  2. Ozempic471 claims
  3. Metformin Hcl Er416 claims
  4. Synthroid371 claims
  5. Jardiance330 claims
  6. Rosuvastatin Calcium124 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: $415.85

23 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marilyn Ryan$415.85
  2. Specialty average$5,742.15

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Suburban Endocrinology Associates, PCPaoli, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marilyn Ryan among 485 endocrinology, diabetes & metabolism physician records in Pennsylvania

Marilyn Ryan, M.D. is one of 485 endocrinology, diabetes & metabolism physician records with a practice address in Pennsylvania. 84% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 59% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1979 · median 2004 among the 334 with a school on file
  • Record last updated2010 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Pennsylvania

There are 485 endocrinology, diabetes & metabolism physician records in Pennsylvania.

All 485 in Pennsylvania → Every provider in Paoli → Endocrinology, Diabetes & Metabolism Physician nationwide →

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Jana Abraham, MDBerwyn, PA 193121043663966
  2. Rachana Mundada, MDBerwyn, PA 193121023564739
  3. Amitha Padmanabhuni, MDBerwyn, PA 193121306008818
  4. Sonum Singh, MDChadds Ford, PA 193171659765873
  5. Arkadi Chines, MDMalvern, PA 193551831423979
  6. Rachel Abramczyk, DOParkesburg, PA 193651609360791
  7. Mariele Briones, MDWest Chester, PA 193801821032186
  8. Neema Chokshi, M.D.West Chester, PA 193801164696274

Common questions

What is Marilyn Ryan, M.D.'s NPI number?

Marilyn Ryan, M.D.'s National Provider Identifier (NPI) is 1386733780, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marilyn Ryan, M.D. located?

The NPPES record lists a practice address at 21 Industrial Blvd, Paoli, PA, 19301. Phone: (610) 251-0300. Providers update this record themselves, so call before visiting.

How can I verify Marilyn Ryan, M.D.'s license?

NPPES lists Pennsylvania license number MD025002E, 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 Marilyn Ryan, M.D. prescribe under Medicare Part D?

In 2024, Marilyn Ryan, M.D. had 4,312 Medicare Part D claims for 529 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.