Daniel L. Zimmerman, MD
Obstetrics & Gynecology Physician · Antioch, CA
Daniel L. Zimmerman, MD is an obstetrics & gynecology physician with a practice address in Antioch, California, and NPI 1124121223, issued on Sep 6, 2006. Check the license (California G44114, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Daniel L. Zimmerman
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- G44114 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3737 Lone Tree Way, Antioch, CA 94509
- Phone
- (925) 754-9223
- Enumerated
- Sep 6, 2006
- Record last updated
- Jan 28, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (925) 754-3945
- Medicaid ID
- ZZZ76320Z CA
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 3737 Lone Tree Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Daniel L. Zimmerman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G44114Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Daniel L. Zimmerman among 5,088 obstetrics & gynecology physician records in California
Daniel L. Zimmerman, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2008 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Antioch → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Susie Ahn, MDAntioch, CA 945091265966113
- Ligia Giese, MDAntioch, CA 945091508944661
- Kenneth Grullon, MDAntioch, CA 945091801974977
- Katrina Hendricks, MDAntioch, CA 945091699852525
- Young Kim, M.D.Antioch, CA 945091649236522
- Nina Lee, MDAntioch, CA 945091902984016
- Edgard Sanchez, MDAntioch, CA 945091962580068
- Vivien Tin, MDAntioch, CA 945091619041225
Common questions
What is Daniel L. Zimmerman, MD's NPI number?
Daniel L. Zimmerman, MD's National Provider Identifier (NPI) is 1124121223, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel L. Zimmerman, MD located?
The NPPES record lists a practice address at 3737 Lone Tree Way, Antioch, CA, 94509. Phone: (925) 754-9223. Providers update this record themselves, so call before visiting.
How can I verify Daniel L. Zimmerman, MD's license?
NPPES lists California license number G44114, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Daniel L. Zimmerman, MD's MIPS final score?
The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.