John Schairer, M.D.
NPI 1639381023 · Psychiatry Physician · Los Angeles, CA
John Schairer, M.D. is a Psychiatry Physician provider in Los Angeles, CA (NPI 1639381023).
Provider details
- NPI number
- 1639381023
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G46436 (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
19 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 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 119 | 21 |
| Escitalopram Oxalate | 71 | 15 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 67 | 14 |
| Trazodone Hcl | 66 | 16 |
| Bupropion Hclbrand: Bupropion Xl | 62 | 13 |
| Duloxetine Hcl | 46 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-06
- Last updated
- 2010-11-24
Frequently asked questions
- What is John Schairer's NPI number?
- John Schairer's National Provider Identifier (NPI) is 1639381023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Schairer's specialty?
- John Schairer is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Schairer located?
- John Schairer's practice location on file with NPPES is 10850 Wilshire Boulevard, Los Angeles, CA 90024.
- What is John Schairer's phone number?
- The practice phone number listed in the NPPES registry for John Schairer is (310) 441-0040.
- Is John Schairer's NPI active?
- Yes — John Schairer's NPI (1639381023) is active in the NPPES registry as of the last update on 2010-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.