Daniel J. Fields, M.D.
Family Medicine Physician · Plymouth, CA
Daniel J. Fields, M.D. is a family medicine physician with a practice address in Plymouth, California, and NPI 1801907308, issued on Aug 31, 2006. Check the license (California G42280, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Daniel J. Fields
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G42280 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9279 Locust, Plymouth, CA 95669
- Phone
- (209) 245-6968
- Enumerated
- Aug 31, 2006
- Record last updated
- Jul 28, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (209) 245-5135
- Medicaid ID
- 00G422800 CA
- Medicare enrollment
- Enrolled (PECOS I20081029000378); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 1979
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 9279 Locust
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Sullivan, NPNurse Practitioner1902929912
Verify Daniel J. Fields in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G42280Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average family medicine physician in 2024
9,743 Medicare Part D claims for 821 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 370 claims were for opioids.
Most prescribed
- Atorvastatin Calcium869 claims
- Levothyroxine Sodium401 claims
- Amlodipine Besylate361 claims
- Lisinopril301 claims
- Metformin Hcl Er267 claims
- Gabapentin225 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Sutter Valley Medical FoundationJackson, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel J. Fields among 17,133 family medicine physician records in California
Daniel J. Fields, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1979 · median 2005 among the 10,652 with a school on file
- Record last updated2015 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 family medicine physician records list a practice address in Plymouth
They are 2 of the 13 NPPES records with a practice address in Plymouth, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Plymouth → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Arely MaciasPlymouth, CA 956691013597988
- Venugopal Bellum, MDRancho Cordova, CA 956701225131105
- Warren Brandle, M.D.Gold River, CA 956701790745263
- Lilian Duru, M.D.Rancho Cordova, CA 956701396720215
- Doria Easter-Bryan, DORancho Cordova, CA 956701881684355
- Donald Forrester, MDRancho Cordova, CA 956701659459337
- Lynette Francis, MDRancho Cordova, CA 956701053499764
- Philip Holden, MDGold River, CA 956701639257389
Common questions
What is Daniel J. Fields, M.D.'s NPI number?
Daniel J. Fields, M.D.'s National Provider Identifier (NPI) is 1801907308, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel J. Fields, M.D. located?
The NPPES record lists a practice address at 9279 Locust, Plymouth, CA, 95669. Phone: (209) 245-6968. Providers update this record themselves, so call before visiting.
How can I verify Daniel J. Fields, M.D.'s license?
NPPES lists California license number G42280, 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.
How much does Daniel J. Fields, M.D. prescribe under Medicare Part D?
In 2024, Daniel J. Fields, M.D. had 9,743 Medicare Part D claims for 821 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.