Maryam Movassaghian, M.D.
NPI 1659767358 · Endocrinology, Diabetes & Metabolism Physician · Olney, MD
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maryam Movassaghian, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Olney, MD (NPI 1659767358).
Provider details
- NPI number
- 1659767358
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
310 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 166 | $212 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 111 | $259 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 33 | $37 |
Typical Medicare-allowed amounts for these services range $37–$259 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 69 | 43 |
| Atorvastatin Calcium | 31 | 19 |
| Dulaglutidebrand: Trulicity | 27 | — |
| Semaglutidebrand: Ozempic | 26 | — |
| Metformin Hclbrand: Metformin Hcl Er | 25 | 17 |
| Metformin Hcl | 24 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-09
- Last updated
- 2022-06-28
- Certified
- 2022-06-28
Frequently asked questions
- What is Maryam Movassaghian's NPI number?
- Maryam Movassaghian's National Provider Identifier (NPI) is 1659767358, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maryam Movassaghian's specialty?
- Maryam Movassaghian is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Maryam Movassaghian located?
- Maryam Movassaghian's practice location on file with NPPES is 18109 Prince Philip Dr, Olney, MD 20832-1519.
- What is Maryam Movassaghian's phone number?
- The practice phone number listed in the NPPES registry for Maryam Movassaghian is (301) 774-4529.
- Does Maryam Movassaghian accept Medicare?
- Maryam Movassaghian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maryam Movassaghian's NPI active?
- Yes — Maryam Movassaghian's NPI (1659767358) is active in the NPPES registry as of the last update on 2022-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.