Douglas Freeman, M.D.
Family Medicine Physician · Fairfield, CA
Douglas Freeman, M.D. is a family medicine physician with a practice address in Fairfield, California, and NPI 1588760110, issued on Sep 14, 2006. Check the license (California C 51473, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Douglas Freeman
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C 51473 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2458 Hilborn RD, Fairfield, CA 94534
- Phone
- (707) 646-5500
- Enumerated
- Sep 14, 2006
- Entity
- Type 1 · individual
Also registered at 2458 Hilborn RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ho-Hin Choy, M.D.Cardiovascular Disease Physician1083008262
- Michelle Church, M.D.Pediatric Adolescent Medicine Physician1659426575
- Sarah Digeorge, NPAcute Care Nurse Practitioner1598443897
- Kalsang Dorji, DNP, FNP-BCFamily Nurse Practitioner1861056640
- Judith Flandez, PA-CPhysician Assistant1316482250
Verify Douglas Freeman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C 51473Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2.3 times the Medicare Part D claims of the average family medicine physician in 2024
8,106 Medicare Part D claims for 545 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 195 claims were for opioids.
Most prescribed
- Atorvastatin Calcium600 claims
- Amlodipine Besylate432 claims
- Losartan Potassium254 claims
- Levothyroxine Sodium243 claims
- Metformin Hcl238 claims
- Omeprazole233 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.
Industry payments in 2024: $115.66
1 payment, mostly food and beverage; the largest payer was Lilly USA, LLC. The 53,013 providers of this specialty with any payment received $861.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospital and facility affiliations
- Northbay Health Medical FoundationRio Vista, CA
- Northbay Physicians Surgery Center, LLCFairfield, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
65 family medicine physician records list a Fairfield practice address
They are 65 of the 3,595 NPPES records with a Fairfield practice address, and 16,272 family medicine physician records in California.
All 65 in Fairfield → All 16,272 in California → Every provider in Fairfield →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Douglas Freeman, M.D.'s NPI number?
Douglas Freeman, M.D.'s National Provider Identifier (NPI) is 1588760110, issued on Sep 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Freeman, M.D. located?
The NPPES record lists a practice address at 2458 Hilborn RD, Fairfield, CA, 94534. Phone: (707) 646-5500. Providers update this record themselves, so call before visiting.
How can I verify Douglas Freeman, M.D.'s license?
NPPES lists California license number C 51473, 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 Douglas Freeman, M.D. prescribe under Medicare Part D?
In 2024, Douglas Freeman, M.D. had 8,106 Medicare Part D claims for 545 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.