Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ernesto Rivera, MD

Obstetrics & Gynecology Physician in Baltimore, MD · enumerated 2005.

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

National Provider Identifier

1851385603

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Registry record

Entity type Individual (Type 1)

Name Dr. Ernesto Rivera

Credential MD

Sex Male

Practice address 3700 Fleet St, Ste 200, Baltimore, MD, 21224

Phone (410) 558-4900

Fax (410) 522-5070

Enumeration date Sep 8, 2005

Last updated in NPPES Nov 9, 2015

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License D18554 (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
118131900	Medicaid	MD	-
W1050001	Other	-	BLUE CHOICE
07124	Other	-	AMERIGROUP
6774E	Other	MD	CAREFIRST BLUE SHIELD MD
21536	Other	-	MDIPA

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.

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Frequently asked questions

Where does Ernesto Rivera practice?

The practice location on file with NPPES is in Baltimore, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Ernesto Rivera?

The National Provider Identifier (NPI) for Ernesto Rivera is 1851385603, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-11-09.