Gary Macgregor, M.D.
NPI 1912019555 · Emergency Medicine Physician · Redwood City, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Macgregor, M.D. is a Emergency Medicine Physician provider in Redwood City, CA (NPI 1912019555).
Provider details
- NPI number
- 1912019555
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G27051 (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
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
- 2006-08-31
- Last updated
- 2007-10-26
Frequently asked questions
- What is Gary Macgregor's NPI number?
- Gary Macgregor's National Provider Identifier (NPI) is 1912019555, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Macgregor's specialty?
- Gary Macgregor is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Macgregor located?
- Gary Macgregor's practice location on file with NPPES is 170 Alameda De Las Pulgas, Redwood City, CA 94062-2751.
- What is Gary Macgregor's phone number?
- The practice phone number listed in the NPPES registry for Gary Macgregor is (650) 367-5541.
- Does Gary Macgregor accept Medicare?
- Gary Macgregor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Macgregor's NPI active?
- Yes — Gary Macgregor's NPI (1912019555) is active in the NPPES registry as of the last update on 2007-10-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.