Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Endocrine & Diabetes Group of Washington, PC

Endocrinology, Diabetes & Metabolism Physician in Suitland, MD · enumerated 2007 · authorized official Karl Salman, Doctor.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1619187655

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Registry record

Entity type Organization (Type 2)

Legal business name Endocrine & Diabetes Group of Washington, PC

Practice address 5801 Allentown Rd, Suite 500, Suitland, MD, 20746

Phone (301) 899-7713

Fax (301) 934-9321

Enumeration date May 22, 2007

Last updated in NPPES Mar 17, 2010

Taxonomy & classification

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License D35656 (MD) Primary

Authorized official

Name Karl Salman

Title Doctor

Phone (301) 899-7713

Other identifiers

Identifier	Type	State	Issuer
460000842	Other	MD	RAIL ROAD MEDIARE
CA3109	Other	MD	RAIL ROAD MEDICARE GROUP

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What type of organization is Endocrine & Diabetes Group of Washington, PC?

Endocrine & Diabetes Group of Washington, PC is registered in NPPES as a Endocrinology, Diabetes & Metabolism Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

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Karl Salman Endocrinology, Diabetes & Metabolism Physician · Suitland, MD NPI 1306844840 Osvaldo Gonzalez Endocrinology, Diabetes & Metabolism Physician · Suitland, MD NPI 1104828748 Beverly Gregory Physician Assistant · Camp Springs, MD NPI 1871585091 Daniel Gozzi Endocrinology, Diabetes & Metabolism Physician · Suitland, MD NPI 1316931413 Surgical Associates LLC Vascular Surgery Physician · Camp Springs, MD NPI 1518954312 James Tzeng Surgery Physician · Camp Springs, MD NPI 1083601991 Tong Ma Surgery Physician · Camp Springs, MD NPI 1518954411 Robert Wagner Surgery Physician · Camp Springs, MD NPI 1164419081

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-17.