DR. SAMUEL A SEMEGN MD
NPI 1770656076
Internal Medicine in Largo, MD

Q: 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.

Q: What is Samuel Semegn's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: 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 7 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.

Active since November 16, 2006PECOS EnrolledAccepts Medicare Assignment

1221 MERCANTILE LANE, LARGO, MD 20774(301) 618-5578(301) 618-5673 Get Directions Write a Review

NPPES record last updated: February 16, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Jan 29, 2026, Jun 1, 2021 (2 updates tracked since 2021).

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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

NPI1770656076

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. SAMUEL A SEMEGNCredential: MD

Location Address1221 MERCANTILE LANELargo, MD 20774-5374

Mailing Address2101 E Jefferson StRockville, MD 20852-4908 · (301) 816-6660 · Fax (301) 816-6308

Phone(301) 618-5578

Fax(301) 618-5673

Sole ProprietorNo

Medical School CMSOtherGraduated 1985

Enumeration DateNovember 16, 2006

Last NPPES UpdateFebruary 16, 20262 updates tracked since enumeration

NPPES CertifiedFebruary 16, 2026

✔ NPI 1770656076 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in MD · D0048152✔ Licensed in DC · MD22126

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

1221 MERCANTILE LANE, Largo, MD 20774

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Secondary Practice Location 1

Location 1759 S Main StWoodstock, VA 22664-1154 · Phone (540) 459-1383

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID941215271

PECOS Enrollment IDI20130910001010

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number491305

Location759 South Main StreetWoodstock, VA 22664 · Shenandoah County

Emergency services

Physician 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.

New Patient

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

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