Helena Chan, M.D.
NPI 1831399369 · Psychiatry Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helena Chan, M.D. is a Psychiatry Physician provider in San Francisco, CA (NPI 1831399369).
Provider details
- NPI number
- 1831399369
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A96576 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
61 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 | 33 | $111 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 28 | $75 |
Typical Medicare-allowed amounts for these services range $75–$111 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Olanzapine | 37 |
| Paliperidone Palmitatebrand: Invega Sustenna | 25 |
| Lorazepam | 25 |
| Quetiapine Fumaratebrand: Quetiapine Fumarate Er | 24 |
| Alprazolam | 23 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 19 |
| Bupropion Hclbrand: Bupropion Xl | 16 |
| Aripiprazole | 15 |
Practice location
Mailing address
Additional practice locations (2)
- 720 Sacramento StSan Francisco, CA 94108-2535Phone: (628) 217-6473Fax: (628) 217-6460
- 1351 24th AveSan Francisco, CA 94122-1616Phone: (415) 753-7400
Registry dates
- Enumerated
- 2007-07-23
- Last updated
- 2022-08-23
- Certified
- 2022-08-23
Frequently asked questions
- What is Helena Chan's NPI number?
- Helena Chan's National Provider Identifier (NPI) is 1831399369, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helena Chan's specialty?
- Helena Chan is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Helena Chan located?
- Helena Chan's practice location on file with NPPES is 1990 41st Ave, San Francisco, CA 94116-1101.
- What is Helena Chan's phone number?
- The practice phone number listed in the NPPES registry for Helena Chan is (415) 753-7400.
- Does Helena Chan accept Medicare?
- Helena Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helena Chan's NPI active?
- Yes — Helena Chan's NPI (1831399369) is active in the NPPES registry as of the last update on 2022-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.