James Mervis, M.D.
NPI 1831276450 · Psychiatry Physician · North Hills, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Mervis, M.D. is a Psychiatry Physician provider in North Hills, CA (NPI 1831276450).
Provider details
- NPI number
- 1831276450
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A44094 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 77 | — |
| Alprazolam | 54 | 13 |
| Fluoxetine Hcl | 42 | 12 |
| Duloxetine Hcl | 37 | — |
| Clonazepam | 31 | — |
| Mirtazapine | 27 | — |
| Lorazepam | 25 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2025-01-15
- Certified
- 2025-01-15
Frequently asked questions
- What is James Mervis's NPI number?
- James Mervis's National Provider Identifier (NPI) is 1831276450, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Mervis's specialty?
- James Mervis is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is James Mervis located?
- James Mervis's practice location on file with NPPES is 16111 Plummer, North Hills, CA 91343.
- What is James Mervis's phone number?
- The practice phone number listed in the NPPES registry for James Mervis is (818) 891-7711.
- Does James Mervis accept Medicare?
- James Mervis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Mervis's NPI active?
- Yes — James Mervis's NPI (1831276450) is active in the NPPES registry as of the last update on 2025-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.