Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen Ann Parker, M.D

Q: What is the NPI number for Karen Parker?

The National Provider Identifier (NPI) for Karen Parker is 1548200546, a Type 1 (individual) record in the CMS NPPES registry.

Emergency Medicine Physician in Marysville, CA · enumerated 2006.

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

National Provider Identifier

1548200546

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Registry record

Entity type Individual (Type 1)

Name Karen Ann Parker

Credential M.D

Sex Female

Practice address 726 4th St, Marysville, CA, 95901

Phone (530) 749-4300

Enumeration date Jun 7, 2006

Last updated in NPPES Dec 6, 2021

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License G78555 (CA) 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

What is the NPI number for Karen Parker?

The National Provider Identifier (NPI) for Karen Parker is 1548200546, a Type 1 (individual) record in the CMS NPPES registry.

Where does Karen Parker practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-06.