Allen Chen, MD
NPI 1487018099 · Psychiatry Physician · Fresno, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allen Chen, MD is a Psychiatry Physician provider in Fresno, CA (NPI 1487018099).
Provider details
- NPI number
- 1487018099
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A153348 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clozapine | 98 | — |
| Olanzapine | 80 | 21 |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 64 | 17 |
| Quetiapine Fumarate | 34 | 12 |
| Paliperidone Palmitatebrand: Invega Sustenna | 33 | — |
| Aripiprazole | 33 | 13 |
| Divalproex Sodium | 31 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-09
- Last updated
- 2024-05-08
- Certified
- 2024-05-08
Frequently asked questions
- What is Allen Chen's NPI number?
- Allen Chen's National Provider Identifier (NPI) is 1487018099, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allen Chen's specialty?
- Allen Chen is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Allen Chen located?
- Allen Chen's practice location on file with NPPES is 4441 E Kings Canyon Rd, Fresno, CA 93702-3604.
- What is Allen Chen's phone number?
- The practice phone number listed in the NPPES registry for Allen Chen is (559) 600-9180.
- Does Allen Chen accept Medicare?
- Allen Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allen Chen's NPI active?
- Yes — Allen Chen's NPI (1487018099) is active in the NPPES registry as of the last update on 2024-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.