Margaret Thomas, M.D.
NPI 1093871444 · Family Medicine Physician · Lancaster, PA
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Thomas, M.D. is a Family Medicine Physician provider in Lancaster, PA (NPI 1093871444).
Provider details
- NPI number
- 1093871444
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD431281 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
345 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 105 | $74 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 98 | $108 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 54 | $179 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 41 | $40 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 29 | $107 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 116 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,075 | 43 |
| Levothyroxine Sodium | 989 | 36 |
| Apixabanbrand: Eliquis | 859 | 39 |
| Lisinopril | 651 | 26 |
| Furosemide | 646 | 38 |
| Mirtazapine | 644 | 23 |
| Escitalopram Oxalate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-29
- Last updated
- 2007-07-19
Frequently asked questions
- What is Margaret Thomas's NPI number?
- Margaret Thomas's National Provider Identifier (NPI) is 1093871444, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Thomas's specialty?
- Margaret Thomas is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Thomas located?
- Margaret Thomas's practice location on file with NPPES is 555 N Duke St, Lancaster, PA 17602-2250.
- What is Margaret Thomas's phone number?
- The practice phone number listed in the NPPES registry for Margaret Thomas is (717) 544-4950.
- Does Margaret Thomas accept Medicare?
- Margaret Thomas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Thomas's NPI active?
- Yes — Margaret Thomas's NPI (1093871444) is active in the NPPES registry as of the last update on 2007-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.