Daniel Zimmerman, MD
NPI 1124121223 · Obstetrics & Gynecology Physician · Antioch, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Zimmerman, MD is a Obstetrics & Gynecology Physician provider in Antioch, CA (NPI 1124121223).
Provider details
- NPI number
- 1124121223
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G44114 (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
- 2006-09-06
- Last updated
- 2008-01-28
Frequently asked questions
- What is Daniel Zimmerman's NPI number?
- Daniel Zimmerman's National Provider Identifier (NPI) is 1124121223, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Zimmerman's specialty?
- Daniel Zimmerman is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Zimmerman located?
- Daniel Zimmerman's practice location on file with NPPES is 3737 Lone Tree Way, Antioch, CA 94509-6065.
- What is Daniel Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for Daniel Zimmerman is (925) 754-9223.
- Does Daniel Zimmerman accept Medicare?
- Daniel Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Zimmerman's NPI active?
- Yes — Daniel Zimmerman's NPI (1124121223) is active in the NPPES registry as of the last update on 2008-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.