Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tiffany Holcombe Svahn, M.D.

Hematology & Oncology Physician in Pleasant Hill, CA · enumerated 2006.

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

National Provider Identifier

1518920479

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Registry record

Entity type Individual (Type 1)

Name Tiffany Holcombe Svahn

Credential M.D.

Sex Female

Practice address 400 Taylor Blvd, Suite 202, Pleasant Hill, CA, 94523

Phone (925) 677-5041

Fax (925) 677-5025

Enumeration date Apr 10, 2006

Last updated in NPPES Aug 5, 2021

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License A81256 (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
A81256	Other	CA	CALIFORNIA MEDICAL LICENS

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.

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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 Tiffany Svahn?

Tiffany Svahn is registered in NPPES with the primary taxonomy of Hematology & Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-05.