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MARK M. SKLAR, M.D., PLLC
NPI 1073097028
Internal Medicine - Endocrinology, Diabetes & Metabolism in Washington, DC

Active since September 16, 2018CLIA 09D0966205 · Waiver
3 WASHINGTON CIR NW STE 303, WASHINGTON, DC 20037(202) 887-4769(202) 223-2552 Get Directions Write a Review

NPPES record last updated: September 16, 2018. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mark M. Sklar, M.d., Pllc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK M. SKLAR, M.D., PLLC (NPI 1073097028) is a healthcare organization registered as an endocrinology, diabetes & metabolism in Washington, District Of Columbia and active in the NPI registry since September 2018. The organization holds a CLIA Waiver certificate valid through October 7, 2027 and lists Mark M Sklar, Owner, as its authorized official.

NPPES Registry Identity

NPI1073097028
Entity TypeOrganization
Primary Taxonomy207RE0101X
Legal Business NameMARK M. SKLAR, M.D., PLLC
Location Address3 WASHINGTON CIR NW STE 303Washington, DC 20037-2311
Mailing Address3 Washington Cir Nw Ste 303Washington, DC 20037-2311 · (202) 887-4769 · Fax (202) 223-2552
Phone(202) 887-4769
Fax(202) 223-2552
Organization SubpartNo
Authorized OfficialMark M SklarOwner · (202) 887-4769
Enumeration DateSeptember 16, 2018
✔ NPI 1073097028 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
3 WASHINGTON CIR NW STE 303, Washington, DC 20037
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 09D0966205

Mark Sklar, MD · Washington, DC
Active · expires Oct 7, 2027
CLIA Number09D0966205
Laboratory TypePhysician Office
Certificate Effective DateOctober 8, 2025
Certificate Expiration DateOctober 7, 2027
Laboratory DirectorMark Sklar
Laboratory Phone(202) 887-4769
Laboratory LocationMark Sklar, MD3 Wahington Circle, NW, Suite 303, Washington, DC 20037
CLIA data matches this NPI record on: Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RAYMOND SCALETTAR MD PLLC
Internal Medicine (Rheumatology)
3 WASHINGTON CIR NW STE 303
WASHINGTON, DC 20037
District of Columbia (202) 223-8911

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 Mark M. Sklar, M.D., PLLC's NPI number?

The NPI number for Mark M. Sklar, M.D., PLLC is 1073097028. It was assigned to this organization in the NPPES registry on September 16, 2018.

Where is Mark M. Sklar, M.D., PLLC located?

Mark M. Sklar, M.D., PLLC is located at 3 Washington Cir NW Ste 303, Washington, DC 20037. The listed phone number is (202) 887-4769.

What is Mark M. Sklar, M.D., PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Does Mark M. Sklar, M.D., PLLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 09D0966205) is associated with this NPI, valid through October 7, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Mark M. Sklar, M.D., PLLC was last updated on September 16, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.