Mark Greenbaum, MD
NPI 1609882331 · Emergency Medicine Physician · Santa Cruz, CA
Mark Greenbaum, MD is a Emergency Medicine Physician provider in Santa Cruz, CA (NPI 1609882331).
Provider details
- NPI number
- 1609882331
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G48834 (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
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
- 2006-08-01
- Last updated
- 2021-05-24
- Certified
- 2021-05-24
Frequently asked questions
- What is Mark Greenbaum's NPI number?
- Mark Greenbaum's National Provider Identifier (NPI) is 1609882331, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Greenbaum's specialty?
- Mark Greenbaum is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Greenbaum located?
- Mark Greenbaum's practice location on file with NPPES is 2025 Soquel Ave, Santa Cruz, CA 95062-1323.
- What is Mark Greenbaum's phone number?
- The practice phone number listed in the NPPES registry for Mark Greenbaum is (831) 458-5537.
- Is Mark Greenbaum's NPI active?
- Yes — Mark Greenbaum's NPI (1609882331) is active in the NPPES registry as of the last update on 2021-05-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.