DR. SAMUEL A SEMEGN MD
NPI 1770656076
Internal Medicine in Largo, MD
About Dr. Samuel A Semegn Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SAMUEL A SEMEGN MD (NPI 1770656076) is an individual internal medicine provider in Largo, Maryland, licensed in Maryland (D0048152) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with Shenandoah Memorial Hospital, and maintains a secondary practice location in Woodstock.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Samuel A Semegn Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Samuel Semegn reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Suitland, MD 20746
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Also billed through NPI 1285752121 (Maryland)
- 2,492 clinicians in this Medicare group
Strasburg, VA 22657
- Reassigned Medicare billing, Virginia enrollment
- 416 clinicians in this Medicare group
Newport Beach, CA 92663
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: Rocket Doctor Practice Group PC
- 9 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Shenandoah Memorial Hospital
Critical Access Hospitals · Woodstock, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20774 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LARGO, MD 20774
UPPER MARLBORO, MD 20774
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Samuel Semegn's NPI number?
The NPI number for Samuel Semegn is 1770656076. It was assigned to this individual provider in the NPPES registry on November 16, 2006.
Where is Samuel Semegn located?
Samuel Semegn practices at 1221 Mercantile Lane, Largo, MD 20774. The listed phone number is (301) 618-5578.
What is Samuel Semegn's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Samuel Semegn enrolled in Medicare?
Yes. Samuel Semegn is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Samuel Semegn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Samuel Semegn reassigns Medicare benefits to 3 organizations: Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Suitland, MD), Shenandoah Memorial Hospital, Inc. (Strasburg, VA) and Rocket Doctor Practice Group, P.C. (Newport Beach, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Samuel Semegn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Samuel Semegn accept?
Health plans from CareSource list Samuel Semegn as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Samuel Semegn affiliated with any hospitals?
According to CMS data, Samuel Semegn is affiliated with Shenandoah Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Samuel Semegn was last updated on February 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Samuel A Semegn, MD · NPI 1770656076
Internal Medicine physician in Largo, Maryland. Individual provider, active in the CMS NPPES registry since November 16, 2006.
## Identity
- **NPI:** 1770656076 (Entity type: Individual)
- **Enumerated:** November 16, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** D0048152 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 1221 MERCANTILE LANE, Largo, MD 20774-5374
- **Phone:** (301) 618-5578 · **Fax:** (301) 618-5673
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (NPI 1730200965, Suitland, MD); Shenandoah Memorial Hospital, Inc. (NPI 1710494331, Strasburg, VA); Rocket Doctor Practice Group, P.C. (NPI 1194403642, Newport Beach, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1985
## Record status
- **NPPES last updated:** February 16, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1770656076) · Data from the CMS NPPES public registry.