Marilyn Ryan, M.D.
NPI 1386733780 · Endocrinology, Diabetes & Metabolism Physician · Paoli, PA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilyn Ryan, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Paoli, PA (NPI 1386733780).
Provider details
- NPI number
- 1386733780
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD025002E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,400 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 610 | $131 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 223 | $3 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 217 | $184 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 165 | $35 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 108 | $79 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 50 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 560 | 143 |
| Semaglutidebrand: Ozempic | 471 | 94 |
| Metformin Hclbrand: Metformin Hcl Er | 416 | 111 |
| Levothyroxine Sodiumbrand: Synthroid | 371 | 109 |
| Empagliflozinbrand: Jardiance | 330 | 75 |
| Rosuvastatin Calcium | 124 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$416 across 23 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-12
- Last updated
- 2010-03-31
Frequently asked questions
- What is Marilyn Ryan's NPI number?
- Marilyn Ryan's National Provider Identifier (NPI) is 1386733780, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Ryan's specialty?
- Marilyn Ryan is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Marilyn Ryan located?
- Marilyn Ryan's practice location on file with NPPES is 21 Industrial Blvd, Paoli, PA 19301-1610.
- What is Marilyn Ryan's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Ryan is (610) 251-0300.
- Does Marilyn Ryan accept Medicare?
- Marilyn Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marilyn Ryan's NPI active?
- Yes — Marilyn Ryan's NPI (1386733780) is active in the NPPES registry as of the last update on 2010-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.