Samuel A. Semegn, MD
Internal Medicine Physician · Largo, MD
Samuel A. Semegn, MD is an internal medicine physician with a practice address in Largo, Maryland, and NPI 1770656076, issued on Nov 16, 2006. Check the license (Maryland D0048152, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Samuel A. Semegn
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- D0048152 MD
MD22126 DC
Self-reported in NPPES; status is on the state search - Practice location
- 1221 Mercantile Lane, Largo, MD 20774
- Phone
- (301) 618-5578
- Enumerated
- Nov 16, 2006
- Record last updated
- Feb 16, 2026
- Fax
- (301) 618-5673
- Medicare enrollment
- Enrolled (PECOS I20090916000623); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 1221 Mercantile Lane
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Idongesit Attang, M.D.Adult Medicine Physician1114312758
- Erika Benns, MDInternal Medicine Physician1417018789
- Elizabeth Biegelsen, MDCardiovascular Disease Physician1982770194
- Maurice Cates, MDOrthopaedic Surgery Physician1861565137
- Kemilla Charles, ODOptometrist1538232855
- Marie Eason, M.D.Diagnostic Radiology Physician1275664526
Verify Samuel A. Semegn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0048152Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average internal medicine physician in 2024
7,323 Medicare Part D claims for 681 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 86 claims were for opioids.
Most prescribed
- Atorvastatin Calcium794 claims
- Amlodipine Besylate500 claims
- Losartan Potassium418 claims
- Metformin Hcl332 claims
- Lisinopril215 claims
- Glipizide186 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.
Bills Medicare through 2 group practices
- Kaiser Foundation Health Plan OF The Mid Atlantic States, IncLargo, MD
- Shenandoah Memorial Hospital, Inc.Woodstock, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samuel A. Semegn among 3,904 internal medicine physician records in Maryland
Samuel A. Semegn, MD is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1985 · median 2003 among the 2,445 with a school on file
- Record last updated2026 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 internal medicine physician records list a practice address in Largo
They are 36 of the 651 NPPES records with a practice address in Largo, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Largo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Cielito Aguinaldo, MDLargo, MD 207741063585347
- Elizabeth Biru, MDLargo, MD 207741457342230
- Doreen Blake, M.D.Largo, MD 207741043209331
- George Bone, MDLargo, MD 207741528028297
- Anita Clayton, MDLargo, MD 207741598838872
- Olumide Coker, M.D.Largo, MD 207741235171885
- Glen Jacob, MDLargo, MD 207741780757062
- Ejaz Khan, MDUpper Marlboro, MD 207741669416160
Common questions
What is Samuel A. Semegn, MD's NPI number?
Samuel A. Semegn, MD's National Provider Identifier (NPI) is 1770656076, issued on Nov 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Samuel A. Semegn, MD located?
The NPPES record lists a practice address at 1221 Mercantile Lane, Largo, MD, 20774. Phone: (301) 618-5578. Providers update this record themselves, so call before visiting.
How can I verify Samuel A. Semegn, MD's license?
NPPES lists Maryland license number D0048152, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Samuel A. Semegn, MD prescribe under Medicare Part D?
In 2024, Samuel A. Semegn, MD had 7,323 Medicare Part D claims for 681 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.
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.