Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Doreen Blake, M.D.

Internal Medicine Physician in Largo, MD · enumerated 2005.

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

National Provider Identifier

1043209331

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Registry record

Entity type Individual (Type 1)

Name Dr. Doreen Blake

Credential M.D.

Sex Female

Practice address 1450 Mercantile Ln, Suite 111, Largo, MD, 20774

Phone (301) 925-7610

Enumeration date Oct 19, 2005

Last updated in NPPES Jun 4, 2014

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D39421 (MD) Primary

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
116600000	Medicaid	MD	-
P01298022	Other	-	RR MEDICARE

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 1043209331 active?

Yes, as of the latest NPPES snapshot, NPI 1043209331 is active (record last updated 2014-06-04).

How do I verify Doreen Blake's NPI record?

Cross-check NPI 1043209331 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

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David Gooray Cardiovascular Disease Physician · Largo, MD NPI 1720070261 Susan Jenkins Gynecology Physician · Largo, MD NPI 1942299417 Linda Sloan Internal Medicine Physician · Largo, MD NPI 1699764977 Ademuyiwa Adetunji Primary Podiatric Medicine Podiatrist · Upper Marlboro, MD NPI 1487638854 Lisa Thompson General Practice Dentistry · Largo, MD NPI 1568512242 Blake & Sloan PC Internal Medicine Physician · Largo, MD NPI 1598885436 East Coast Gastroenterology LLC Gastroenterology Physician · Largo, MD NPI 1992998975 Lisa V. Thompson, DDS, LLC Dental Clinic/Center · Largo, MD NPI 1922249200

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-04.