Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Doris Tiu Tan, D.O.
Psychiatry Physician in Fresno, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578522462
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Registry record
Entity type Individual (Type 1)
Name Dr. Doris Tiu Tan
Credential D.O.
Sex Female
Practice address 2550 W Clinton Ave, Building A Suite 116, Fresno, CA, 93705
Phone (559) 264-7521
Enumeration date Mar 21, 2006
Last updated in NPPES Jun 20, 2023
Taxonomy & licenses
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License OS11210 (FL) Secondary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 003193700 | Medicaid | FL | - |
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.
Frequently asked questions
What is the NPI number for Doris Tan?
The National Provider Identifier (NPI) for Doris Tan is 1578522462, a Type 1 (individual) record in the CMS NPPES registry.
Where does Doris Tan practice?
The practice location on file with NPPES is in Fresno, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Jennifer Bates Clinical Social Worker · Fresno, CA NPI 1316087638 John Velasco Day Training/Habilitation Specialist · Fresno, CA NPI 1780713396 Mental Health Systems, Inc. Community/Behavioral Health Agency · Fresno, CA NPI 1831227479 Janis Sanclemente Marriage & Family Therapist · Fresno, CA NPI 1225160310 Susan Murdock Addiction (Substance Use Disorder) Counselor · Fresno, CA NPI 1396861597 Filiberto Leanos Addiction (Substance Use Disorder) Counselor · Fresno, CA NPI 1932328416 Monique Gutierrez Nurse's Aide · Fresno, CA NPI 1952580284 Victoria Debenedetti Addiction (Substance Use Disorder) Counselor · Fresno, CA NPI 1700061827
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-20.