Gregory Greenbaum, M.D
NPI 1982654067 · Emergency Medicine Physician · Sun City, AZ
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Greenbaum, M.D is a Emergency Medicine Physician provider in Sun City, AZ (NPI 1982654067).
Provider details
- NPI number
- 1982654067
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- 35417 (AZ)
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
- 2006-05-11
- Last updated
- 2008-01-30
Frequently asked questions
- What is Gregory Greenbaum's NPI number?
- Gregory Greenbaum's National Provider Identifier (NPI) is 1982654067, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Greenbaum's specialty?
- Gregory Greenbaum is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Greenbaum located?
- Gregory Greenbaum's practice location on file with NPPES is 10401 West Thunderbird Blvd., Sun City, AZ 85351.
- What is Gregory Greenbaum's phone number?
- The practice phone number listed in the NPPES registry for Gregory Greenbaum is (623) 977-7211.
- Does Gregory Greenbaum accept Medicare?
- Gregory Greenbaum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Greenbaum's NPI active?
- Yes — Gregory Greenbaum's NPI (1982654067) is active in the NPPES registry as of the last update on 2008-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.