Nguyen Nguyen
Family Medicine Physician · Fairfield, CA
Nguyen Nguyen is a family medicine physician with a practice address in Fairfield, California, and NPI 1013364900, issued on May 20, 2016. Check the license (California A162315, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nguyen Nguyen
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A162315 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2458 Hilborn RD, Fairfield, CA 94534
- Phone
- (707) 646-5500
- Enumerated
- May 20, 2016
- Record last updated
- Aug 15, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (707) 646-5501
- Medicare enrollment
- Enrolled (PECOS I20190801001057); accepts Medicare assignment
- 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 2458 Hilborn RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sarah Digeorge, NPAcute Care Nurse Practitioner1598443897
- Kalsang Dorji, DNP, FNP-BCFamily Nurse Practitioner1861056640
- Judith Flandez, PA-CPhysician Assistant1316482250
Verify Nguyen Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A162315Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average family medicine physician in 2024
5,706 Medicare Part D claims for 442 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 62 claims were for opioids.
Most prescribed
- Atorvastatin Calcium414 claims
- Amlodipine Besylate357 claims
- Levothyroxine Sodium247 claims
- Losartan Potassium237 claims
- Lisinopril207 claims
- Rosuvastatin Calcium157 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 2 group practices
- Northbay Health Medical FoundationFairfield, CA
- Northbay Physicians Surgery Center, LLCFairfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nguyen Nguyen among 17,133 family medicine physician records in California
Nguyen Nguyen 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 2016, is newer than 76% of them.
- NPI issued2016 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2016 · median 2005 among the 10,652 with a school on file
- Record last updated2019 · 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).
67 family medicine physician records list a practice address in Fairfield
They are 67 of the 3,595 NPPES records with a practice address in Fairfield, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Fairfield → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jason Booth, MDFairfield, CA 945341215236443
- Daniel Ferrick, M.D.Fairfield, CA 945341942397260
- Vanessa Franco, MDFairfield, CA 945341255481305
- Douglas Freeman, M.D.Fairfield, CA 945341588760110
- Ehsan Ghods, D.O.Fairfield, CA 945341386663508
- Bryan Holcomb, MDFairfield, CA 945341366523516
- Alina Hongsakaphadana, M.D.Fairfield, CA 945341740304237
- Kelse McKinley, M.D.Fairfield, CA 945341649433178
Common questions
What is Nguyen Nguyen's NPI number?
Nguyen Nguyen's National Provider Identifier (NPI) is 1013364900, issued on May 20, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Nguyen Nguyen 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 Nguyen Nguyen's license?
NPPES lists California license number A162315, 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 Nguyen Nguyen prescribe under Medicare Part D?
In 2024, Nguyen Nguyen had 5,706 Medicare Part D claims for 442 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.