Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carmen Rosa Hernandez, M.D.

Gastroenterology Physician in Frederick, MD · enumerated 2005 · practices at Cardiology Center LLP.

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

National Provider Identifier

1639172141

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Registry record

Entity type Individual (Type 1)

Name Dr. Carmen Rosa Hernandez

Credential M.D.

Sex Female

Practice address 310 W Ninth St, Frederick, MD, 21701

Phone (301) 695-6800

Enumeration date May 30, 2005

Last updated in NPPES Mar 4, 2016

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License D0035271 (MD) Primary

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

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

Where does Carmen Hernandez practice?

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

What is the NPI number for Carmen Hernandez?

The National Provider Identifier (NPI) for Carmen Hernandez is 1639172141, 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 2016-03-04.