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

DAVID MICHAEL HAMM DO
NPI 1609435148
Internal Medicine in Bethesda, MD

Active since June 09, 2019
8901 ROCKVILLE PIKE, BETHESDA, MD 20889(301) 319-2100 Get Directions Write a Review

NPPES record last updated: July 9, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 9, 2026, Jun 10, 2019, Jun 9, 2019 (3 updates tracked since 2019).

About David Michael Hamm Do NPPES

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

DAVID MICHAEL HAMM DO (NPI 1609435148) is an individual internal medicine provider in Bethesda, Maryland, licensed in Indiana (02006301A) and active in the NPI registry since June 2019.

NPPES Registry Identity

NPI1609435148
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDAVID MICHAEL HAMMCredential: DO
Location Address8901 ROCKVILLE PIKEBethesda, MD 20889-0001
Mailing Address8901 Rockville PikeBethesda, MD 20889-0001 · (301) 319-2100
Sole ProprietorNo
Enumeration DateJune 9, 2019
Last NPPES UpdateJuly 9, 20263 updates tracked since enumeration
NPPES CertifiedJuly 9, 2026
NPI 1609435148 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in IN · 02006301A
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License 02006301A (IN)
8901 ROCKVILLE PIKE, Bethesda, MD 20889

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.

Dermatology (Dermatopathology)
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Surgery
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Internal Medicine (Endocrinology, Diabetes & Metabolism)
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Obstetrics & Gynecology
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Anesthesiology
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Internal Medicine
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Military Health Care Provider
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Emergency Medicine
8901 ROCKVILLE PIKE
BETHESDA, MD 20889

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 David Hamm's NPI number?

The NPI number for David Hamm is 1609435148. It was assigned to this individual provider in the NPPES registry on June 9, 2019.

Where is David Hamm located?

David Hamm practices at 8901 Rockville Pike, Bethesda, MD 20889. The listed phone number is (301) 319-2100.

What is David Hamm's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for David Hamm was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 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.