Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark J. Fredrick, MD

Internal Medicine Physician in Huntington Beach, CA · enumerated 2005.

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

National Provider Identifier

1518964998

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Registry record

Entity type Individual (Type 1)

Name Mark J. Fredrick

Credential MD

Sex Male

Practice address 19066 Magnolia St, Huntington Beach, CA, 92646

Phone (714) 968-0068

Fax (714) 378-2188

Enumeration date Jun 30, 2005

Last updated in NPPES Dec 15, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G67380 (CA) 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
00G673800	Other	CA	MEDI CAL

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 specialty is Mark Fredrick?

Mark Fredrick is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-15.