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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. WERNER FRANKLIN BARTH M.D.
NPI 1659370948
Internal Medicine - Rheumatology in Washington, DC

Active since July 19, 2005
2021 K ST NW, SUITE 350, WASHINGTON, DC 20006(202) 293-1470(202) 293-9416 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Dr. Werner Franklin Barth M.d. NPPES

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

DR. WERNER FRANKLIN BARTH M.D. (NPI 1659370948) is an individual rheumatology provider in Washington, District Of Columbia and active in the NPI registry since July 2005.

NPPES Registry Identity

NPI1659370948
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDR. WERNER FRANKLIN BARTHCredential: M.D.
Location Address2021 K ST NW, SUITE 350Washington, DC 20006-1003
Mailing Address2730 University Blvd W, Suite 310Wheaton, MD 20902-1905 · (301) 942-7600 · Fax (301) 942-3132
Phone(202) 293-1470
Fax(202) 293-9416
Sole ProprietorNo
Enumeration DateJuly 19, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1659370948 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

2021 K ST NW, Washington, DC 20006
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Other Identifiers 4

Other0004091566Aetna
Other493052Ncppo
Other380192Mamsi
Other380192Alliance

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.

DR. STUART BRIAN SIBEL D.P.M.
Podiatrist (Foot Surgery)
2021 K ST NW, STE 520
WASHINGTON, DC 20006
District of Columbia (202) 223-4616
DAVID RANGE MD
Otolaryngology
2021 K ST NW, 210
WASHINGTON, DC 20006
District of Columbia (202) 223-3560
ELIZABETH M ROSS M.D.
Specialist
2021 K ST NW, SUITE 315
WASHINGTON, DC 20006
District of Columbia (202) 775-0955
KENNETH M.H. LEE M.D.
Specialist
2021 K ST NW, SUITE 315
WASHINGTON, DC 20006
District of Columbia (202) 775-0955
DR. CLARENCE CONROY LINDQUIST D.D.S.
Dentist (Oral and Maxillofacial Surgery)
2021 K ST NW, SUITE 317
WASHINGTON, DC 20006
District of Columbia (202) 466-7555
DR. PAULA RUSSO D.D.S., M.S.
Dentist (Endodontics)
2021 K ST NW, SUITE 522
WASHINGTON, DC 20006
District of Columbia (202) 861-0045
DR. ANTHONY STEVEN UNGER M.D.
Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
2021 K ST NW, SUITE 400
WASHINGTON, DC 20006
District of Columbia (202) 466-5151
DR. RICHARD WERNER BARTH M.D.
Orthopaedic Surgery (Hand Surgery)
2021 K ST NW, SUITE 400
WASHINGTON, DC 20006
District of Columbia (202) 466-5151

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 Werner Barth's NPI number?

The NPI number for Werner Barth is 1659370948. It was assigned to this individual provider in the NPPES registry on July 19, 2005.

Where is Werner Barth located?

Werner Barth practices at 2021 K St NW Suite 350, Washington, DC 20006. The listed phone number is (202) 293-1470.

What is Werner Barth's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

When was this NPI record last updated?

The NPPES record for Werner Barth was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.