Arthur Gruen, M.D.
NPI 1376511303 · Emergency Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arthur Gruen, M.D. is a Emergency Medicine Physician provider in San Diego, CA (NPI 1376511303).
Provider details
- NPI number
- 1376511303
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G63375 (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
- 2006-03-08
- Last updated
- 2018-03-28
Frequently asked questions
- What is Arthur Gruen's NPI number?
- Arthur Gruen's National Provider Identifier (NPI) is 1376511303, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arthur Gruen's specialty?
- Arthur Gruen is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arthur Gruen located?
- Arthur Gruen's practice location on file with NPPES is 7901 Frost St, San Diego, CA 92123-2701.
- What is Arthur Gruen's phone number?
- The practice phone number listed in the NPPES registry for Arthur Gruen is (619) 541-3400.
- Does Arthur Gruen accept Medicare?
- Arthur Gruen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arthur Gruen's NPI active?
- Yes — Arthur Gruen's NPI (1376511303) is active in the NPPES registry as of the last update on 2018-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.