Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carl Wolnisty, M.D.

Internal Medicine Physician in Riverside, CA · enumerated 2005.

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

National Provider Identifier

1912906140

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Registry record

Entity type Individual (Type 1)

Name Dr. Carl Wolnisty

Credential M.D.

Sex Male

Practice address 3838 Sherman Dr, Suite 7, Riverside, CA, 92503

Phone (951) 688-5122

Fax (951) 688-8145

Enumeration date Jul 19, 2005

Last updated in NPPES Aug 3, 2010

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G5804 (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
CR238Z	Other	CA	MEDICARE ID PTAN

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 Carl Wolnisty?

Carl Wolnisty 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 2010-08-03.