Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karl N Zeff, M.D.

Child & Adolescent Psychiatry Physician in Sacramento, CA · enumerated 2006.

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

National Provider Identifier

1861584377

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Karl N Zeff

Credential M.D.

Sex Male

Practice address 1792 Tribute Rd, Suite 350, Sacramento, CA, 95815

Phone (916) 924-6400

Enumeration date Sep 29, 2006

Last updated in NPPES Feb 17, 2012

Taxonomy & licenses

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License G56995 (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
00G569950	Medicaid	CA	-
2058276	Other	CA	GREAT WEST
G56995	Other	CA	BLUE CROSS
000810801643	Other	CA	PHCS
90205067	Other	CA	PACIFICARE
MCMG476000	Other	CA	WESTERN HEALTH ADVANTAGE
131788	Other	CA	HEALTH NET
5706800	Other	CA	FIRST HEALTH
1406920	Other	CA	CIGNA
454791	Other	CA	INTERPLAN
7939327	Other	CA	AETNA

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

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.

What specialty is Karl Zeff?

Karl Zeff is registered in NPPES with the primary taxonomy of Child & Adolescent Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-17.