DEFINA HEALTH
DEFINA HEALTH is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1447935721, based in San Francisco, CA. The organization lists 11 taxonomy classifications, with Psychiatry Physician recorded as primary.
Getting there
The practice address on file is 999 SUTTER ST STE 110, San Francisco, CA 94109. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 7113418898
- Enrollment ID
- O20251111002670
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Psychiatry covers
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems. NUCC Health Care Provider Taxonomy, code 2084P0800X
All registered taxonomy codes
This provider registers 11 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2084P0800X | Psychiatry Physician Psychiatry | — | — | primary |
| 251B00000X | Case Management Agency | — | — | |
| 251E00000X | Home Health Agency | — | — | |
| 103TA0400X | Addiction (Substance Use Disorder) Psychologist Addiction (Substance Use Disorder) | — | — | |
| 103TC1900X | Counseling Psychologist Counseling | — | — | |
| 103TB0200X | Cognitive & Behavioral Psychologist Cognitive & Behavioral | — | — | |
| 261QM0850X | Adult Mental Health Clinic/Center Adult Mental Health | — | — | |
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | — | — | |
| 171M00000X | Case Manager/Care Coordinator | — | — | |
| 106H00000X | Marriage & Family Therapist | — | — | |
| 363LP0808X | Psychiatric/Mental Health Nurse Practitioner Psychiatric/Mental Health | — | — |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1447935721 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jun 15, 2023 |
| Last updated | Nov 12, 2025 |
| Status | Active |
| Practice address |
999 SUTTER ST STE 110 San Francisco, CA 94109 (415) 417-1929 |
| Mailing address |
1875 MISSION ST STE 103-376 San Francisco, CA 94103 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 4 | 4 | 7 | 9 | 3 | 5 | 7 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 8 | 7 | 9 | 3 | 1 | 7 | 4 |
Sum = 69 · next multiple of 10 = 70 · check digit = 1 · actual last digit = 1
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.