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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. DEREK KARR MD
NPI 1033640511
General Practice in Bethesda, MD

Active since March 25, 2017PECOS Enrolled
8901 ROCKVILLE PIKE, BETHESDA, MD 20889(229) 639-7886 Get Directions Write a Review

NPPES record last updated: June 15, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 30, 2025, Apr 4, 2021, Mar 25, 2017 (3 updates tracked since 2017).

About Dr. Derek Karr Md NPPES

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

DR. DEREK KARR MD (NPI 1033640511) is an individual general practice provider in Bethesda, Maryland, licensed in Virginia (0101265636) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1033640511
Entity TypeIndividualMale
Primary Taxonomy208D00000X
Provider Legal NameDR. DEREK KARRCredential: MD
Location Address8901 ROCKVILLE PIKEBethesda, MD 20889-0001
Mailing Address8901 Rockville PikeBethesda, MD 20889-0001
Phone(229) 639-7886
Sole ProprietorNo
Enumeration DateMarch 25, 2017
Last NPPES UpdateJune 15, 20263 updates tracked since enumeration
NPPES CertifiedJune 15, 2026
✔ NPI 1033640511 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in VA · 0101265636
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
Also ListedFamily MedicineTaxonomy 207Q00000X · License 0101265636 (VA)
8901 ROCKVILLE PIKE, Bethesda, MD 20889
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Derek Karr Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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. LIESL SHOCKLEY GRENIER M.D.
Dermatology (Dermatopathology)
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4000
MEGAN JUDITH LENIHAN MD
Surgery
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4000
JOHNS HOPKINS UNIVERSITY
Internal Medicine (Endocrinology, Diabetes & Metabolism)
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 400-1382
NATASHA ANTONY MD
Obstetrics & Gynecology
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4600
MATTHEW NICHOLAS RIBEIRO MD
Anesthesiology
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4000
MR. ANDREW JOSEPH ULLMANN JR. DO
Internal Medicine
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (908) 635-6978
BRYCE TANNER GARDNER DMD
Military Health Care Provider
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4340
PARESH RAM PATEL MD
Emergency Medicine
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4810

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 Derek Karr's NPI number?

The NPI number for Derek Karr is 1033640511. It was assigned to this individual provider in the NPPES registry on March 25, 2017.

Where is Derek Karr located?

Derek Karr practices at 8901 Rockville Pike, Bethesda, MD 20889. The listed phone number is (229) 639-7886.

What is Derek Karr's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Derek Karr enrolled in Medicare?

Yes. Derek Karr is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Derek Karr was last updated on June 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days 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.