James A. Macer, M D a Professional Corp
NPI 1235437450 · Medical Specialty Clinic/Center · Pasadena, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James A. Macer, M D a Professional Corp is a Medical Specialty Clinic/Center organization in Pasadena, CA (NPI 1235437450).
Provider details
- NPI number
- 1235437450
- Entity type
- Organization
- Primary specialty
- Medical Specialty Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Linda Carnow, Biller(626) 449-6223
- License
- G42123 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
Other names (DBA / former)
- Former legal business name
- James A. Macer, M.D.
Registry dates
- Enumerated
- 2011-03-11
- Last updated
- 2016-01-21
Frequently asked questions
- What is James A. Macer, M D a Professional Corp's NPI number?
- James A. Macer, M D a Professional Corp's National Provider Identifier (NPI) is 1235437450, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is James A. Macer, M D a Professional Corp?
- James A. Macer, M D a Professional Corp is classified in the NPPES registry as Medical Specialty Clinic/Center (Ambulatory Health Care Facilities).
- Where is James A. Macer, M D a Professional Corp located?
- James A. Macer, M D a Professional Corp's practice location on file with NPPES is 10 Congress St Ste 400, Pasadena, CA 91105-3020.
- What is James A. Macer, M D a Professional Corp's phone number?
- The practice phone number listed in the NPPES registry for James A. Macer, M D a Professional Corp is (626) 449-6223.
- Does James A. Macer, M D a Professional Corp accept Medicare?
- James A. Macer, M D a Professional Corp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for James A. Macer, M D a Professional Corp?
- The authorized official listed on James A. Macer, M D a Professional Corp's NPPES record is Linda Carnow, Biller. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is James A. Macer, M D a Professional Corp's NPI active?
- Yes — James A. Macer, M D a Professional Corp's NPI (1235437450) is active in the NPPES registry as of the last update on 2016-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.