James Maurer, M.D.
NPI 1659323392 · Psychiatry Physician · Patton, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Maurer, M.D. is a Psychiatry Physician provider in Patton, CA (NPI 1659323392).
Provider details
- NPI number
- 1659323392
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G75446 (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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 1971 Essex Ct Ste 2Redlands, CA 92373-8061Phone: (800) 474-4848Fax: (909) 792-4242
Registry dates
- Enumerated
- 2006-05-17
- Last updated
- 2018-11-26
Frequently asked questions
- What is James Maurer's NPI number?
- James Maurer's National Provider Identifier (NPI) is 1659323392, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Maurer's specialty?
- James Maurer is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is James Maurer located?
- James Maurer's practice location on file with NPPES is 3102 E. Highland Avenue, Patton, CA 92369.
- What is James Maurer's phone number?
- The practice phone number listed in the NPPES registry for James Maurer is (909) 425-7679.
- Does James Maurer accept Medicare?
- James Maurer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Maurer's NPI active?
- Yes — James Maurer's NPI (1659323392) is active in the NPPES registry as of the last update on 2018-11-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.