An Phan, M.D.
NPI 1154857373 · Psychiatry Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
An Phan, M.D. is a Psychiatry Physician provider in Sacramento, CA (NPI 1154857373).
Provider details
- NPI number
- 1154857373
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 173638 (AK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
93 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 32 | $127 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 20 | $86 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 18 | $89 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 12 | $188 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 11 | $234 |
Typical Medicare-allowed amounts for these services range $86–$234 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Clonazepam | 39 |
| Trazodone Hcl | 32 |
| Duloxetine Hcl | 25 |
| Quetiapine Fumarate | 25 |
| Fluoxetine Hcl | 23 |
| Lorazepam | 17 |
| Gabapentin | 16 |
| Desvenlafaxine Succinatebrand: Desvenlafaxine Succinate Er | 16 |
| Ziprasidone Hcl | 16 |
Practice location
Mailing address
Additional practice locations (3)
- 215 Huerta AveGreenfield, CA 93927-5762Phone: (831) 674-2180
- 18217 Hale AveMorgan Hill, CA 95037-3550Phone: (408) 465-8280
- 9343 Tech Center Dr Ste 110Sacramento, CA 95826-2592Phone: (916) 457-3129
Registry dates
- Enumerated
- 2017-05-08
- Last updated
- 2026-01-21
- Certified
- 2026-01-21
Frequently asked questions
- What is An Phan's NPI number?
- An Phan's National Provider Identifier (NPI) is 1154857373, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is An Phan's specialty?
- An Phan is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is An Phan located?
- An Phan's practice location on file with NPPES is 4604a Roosevelt Ave, Sacramento, CA 95820-4520.
- What is An Phan's phone number?
- The practice phone number listed in the NPPES registry for An Phan is (916) 457-3129.
- Does An Phan accept Medicare?
- An Phan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is An Phan's NPI active?
- Yes — An Phan's NPI (1154857373) is active in the NPPES registry as of the last update on 2026-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.