James Calder, M.D.
NPI 1538175708 · Physical Medicine & Rehabilitation Physician · Newport Beach, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Calder, M.D. is a Physical Medicine & Rehabilitation Physician provider in Newport Beach, CA (NPI 1538175708).
Provider details
- NPI number
- 1538175708
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- ME 108777 (FL)
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2019-01-21
Frequently asked questions
- What is James Calder's NPI number?
- James Calder's National Provider Identifier (NPI) is 1538175708, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Calder's specialty?
- James Calder is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is James Calder located?
- James Calder's practice location on file with NPPES is 2071 San Joaquin Hills Rd, Newport Beach, CA 92660-6505.
- What is James Calder's phone number?
- The practice phone number listed in the NPPES registry for James Calder is (310) 995-4247.
- Does James Calder accept Medicare?
- James Calder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Calder's NPI active?
- Yes — James Calder's NPI (1538175708) is active in the NPPES registry as of the last update on 2019-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.