Margaret Sommerville, M.D.
NPI 1861671505 · Dermatology Physician · Chevy Chase, MD
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Sommerville, M.D. is a Dermatology Physician provider in Chevy Chase, MD (NPI 1861671505).
Provider details
- NPI number
- 1861671505
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D0061245 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
538 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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 174 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 117 | $101 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 102 | $47 |
| Destruction of Skin Growth, 1-14 Growths17110 | 90 | $129 |
| Biopsy of Related Skin Growth, First Growth11102 | 24 | $71 |
| Destruction of Precancer Skin Growth, 15 Or More Growths17004 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocortisone | 28 | 13 |
| Ketoconazole | 11 | — |
| Triamcinolone Acetonide | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-30
- Last updated
- 2008-08-10
Frequently asked questions
- What is Margaret Sommerville's NPI number?
- Margaret Sommerville's National Provider Identifier (NPI) is 1861671505, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Sommerville's specialty?
- Margaret Sommerville is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Sommerville located?
- Margaret Sommerville's practice location on file with NPPES is 5530 Wisconsin Ave Ste 830, Chevy Chase, MD 20815-4461.
- What is Margaret Sommerville's phone number?
- The practice phone number listed in the NPPES registry for Margaret Sommerville is (301) 656-7546.
- Does Margaret Sommerville accept Medicare?
- Margaret Sommerville is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Sommerville's NPI active?
- Yes — Margaret Sommerville's NPI (1861671505) is active in the NPPES registry as of the last update on 2008-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.