Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Daniel H Clarke, M.D.

Therapeutic Radiology Physician in Silver Spring, MD · enumerated 2006.

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

National Provider Identifier

1891759817

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Registry record

Entity type Individual (Type 1)

Name Daniel H Clarke

Credential M.D.

Sex Male

Practice address 2121 Medical Park Dr, Suite 4, Silver Spring, MD, 20902

Phone (301) 681-4422

Fax (301) 681-1684

Enumeration date Apr 14, 2006

Last updated in NPPES Apr 18, 2012

Taxonomy & licenses

2085R0203X Therapeutic Radiology Physician Allopathic & Osteopathic Physicians · License D0063803 (MD) Primary

2085R0203X Therapeutic Radiology Physician Allopathic & Osteopathic Physicians · License 0101046018 (VA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1172517	Other	MD	AETNA HMO
60332702	Other	MD	CAREFIRST BC/BS
158895	Other	MD	PHCS
219441401	Medicaid	MD	-
296135	Other	MD	AMERIGROUP
1620115	Other	MD	CIGNA
2906-0016	Other	DC	CAREFIRST BC/BS
4828	Other	MD	ELDER HEALTH
037461100	Medicaid	DC	-
4230117	Other	MD	AETNA PPO
503862	Other	MD	NATIONAL CAPITOL PPO

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1891759817 active?

Yes, as of the latest NPPES snapshot, NPI 1891759817 is active (record last updated 2012-04-18).

How do I verify Daniel Clarke's NPI record?

Cross-check NPI 1891759817 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

James Jaffe Neuroradiology Physician · Silver Spring, MD NPI 1497720247 Sheela Modin Radiation Oncology Physician · Silver Spring, MD NPI 1477519403 Tifani Gilliam Diagnostic Radiology Physician · Silver Spring, MD NPI 1952320459 Latasha Baxter Adult Health Nurse Practitioner · Silver Spring, MD NPI 1497778690 Benjamin Wisotsky Diagnostic Radiology Physician · Silver Spring, MD NPI 1316181092

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-18.