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Individual Healthcare Provider

Sebastian Salvatore Demarco, M.D.

NPI Record: ActiveDermatology — MOHS-Micrographic Surgery
NPI1063807980
Alexandria, Virginia

Provider's NPPES record last updated: March 27, 2026

Overview

Entity Type
Individual Healthcare Provider
NPI
1063807980
Primary Specialty
Dermatology — MOHS-Micrographic Surgery
Practice Location
Alexandria, Virginia
Sole Proprietor
No

Federal Screening

NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.

List of Excluded Individuals/Entities (LEIE)

HHS Office of Inspector General

No potential match identified

No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.

Source data
September 10, 2026
Records indexed
84,001
Screened
Sep 18, 2026, 1:45 AM UTC

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

SAM.gov Exclusions

U.S. General Services Administration

Not checked

SAM.gov Exclusions was not checked.

SAM.gov screening is not configured on this deployment. No SAM check has been performed.

Screened
Not checked

This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

Run a name-based screening

Searches OIG LEIE and SAM.gov by name and reviews every potential match.

Specialties & Taxonomies

  • Dermatology

    MOHS-Micrographic Surgery

    Allopathic & Osteopathic Physicians

    Primary

    The highly-trained surgeons that perform Mohs Micrographic Surgery are specialists both in dermatology and pathology. With their extensive knowledge of the skin and unique pathological skills, they are able to remove only diseased tissue, preserving healthy tissue and minimizing the cosmetic impact of the surgery. Mohs surgeons who belong to the American College of Mohs Surgery (ACMS) have completed a minimum of one year of fellowship training at one of the ACMS-approved training centers in the U.S.

    Taxonomy code 207ND0101X
  • Dermatology

    Allopathic & Osteopathic Physicians

    A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

    Taxonomy code 207N00000X

Provider-Reported License Information

Dermatology (Maryland)
D0098057
Dermatology (Maryland)
D0098057
Dermatology (New York)
289340
License numbers are reported by the provider to NPPES and are not independently verified by NPISignal against any state licensing board. Confirm current license status directly with the issuing state board.

Practice Locations

Practice Location

4660 Kenmore Ave Ste 1100

Alexandria, Virginia 22304-1311

Phone: (703) 370-0073

Additional Practice Location

350 3rd St

Beaver, Pennsylvania 15009-2261

Phone: (724) 774-5255

Fax: (724) 774-5686

Additional Practice Location

101 Centennial St Ste H

La Plata, Maryland 20646-5976

Phone: (301) 292-6010

Fax: (240) 344-2815

Additional Practice Location

1185 Imperial Dr Ste 201

Hagerstown, Maryland 21740-6673

Phone: (240) 707-3757

Fax: (301) 791-5234

Additional Practice Location

1145 19th St Nw Ste 301

Washington, District of Columbia 20036-3718

Phone: (202) 955-6995

Record Information

Enumeration Date
March 30, 2015
Provider's NPPES Record Last Updated
March 27, 2026
Certification Date
March 27, 2026
NPISignal NPPES Dataset
August 2026

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