David Nguyen, DO
Family Medicine Physician · Montclair, CA
David Nguyen, DO is a family medicine physician with a practice address in Montclair, California, and NPI 1669961801, issued on May 3, 2018. Check the license (California 20A17696, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Nguyen
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A17696 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5000 San Bernardino St, Montclair, CA 91763
- Phone
- (909) 625-8231
- Enumerated
- May 3, 2018
- Record last updated
- May 15, 2024
- Medicare enrollment
- Enrolled (PECOS I20200316000160); accepts Medicare assignment
- Medical or professional school
- William Carey University College Of Osteopathic Medicine, 2018
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 5000 San Bernardino St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Glenn Morataya, PHARM. D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1609247683
- Tiffany Sin, DOEmergency Medicine Physician1982196184
- Minn Soe, M.D.Anesthesiology Physician1396759643
- Erik Wiele, DOGeneral Practice Physician1619405875
Verify David Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A17696Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average family medicine physician in 2024
2,290 Medicare Part D claims for 191 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium152 claims
- Amlodipine Besylate111 claims
- Tamsulosin Hcl88 claims
- Eliquis82 claims
- Donepezil Hcl68 claims
- Losartan Potassium68 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: $20.82
1 payment: food and beverage; the largest payer was Lexicon Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Bills Medicare through one group practice
- Apollomed Hospitalists A Medical CorporationMonterey Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Nguyen among 17,133 family medicine physician records in California
David Nguyen, DO 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 2018, is newer than 82% of them.
- NPI issued2018 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2018 · median 2005 among the 10,652 with a school on file
- Record last updated2024 · 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).
11 family medicine physician records list a practice address in Montclair
They are 11 of the 1,301 NPPES records with a practice address in Montclair, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Montclair → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jamal Abdel-Rahman, M.D.Montclair, CA 917631780628842
- Dalia Corleone, MDMontclair, CA 917631649443599
- Justin Delatore, D.OMontclair, CA 917631376950857
- Evan Geise, D.O.Montclair, CA 917631215345194
- Andres Gonzalez, M.D.Montclair, CA 917631669892147
- Ginger Leon, D.O.Montclair, CA 917631245234780
- Dee Beng Lim, M.D.Montclair, CA 917631801805163
- Hammad Shaikh, M.D.Montclair, CA 917631740643063
Common questions
What is David Nguyen, DO's NPI number?
David Nguyen, DO's National Provider Identifier (NPI) is 1669961801, issued on May 3, 2018. An NPI identifies a provider in billing; it is not a license.
Where is David Nguyen, DO located?
The NPPES record lists a practice address at 5000 San Bernardino St, Montclair, CA, 91763. Phone: (909) 625-8231. Providers update this record themselves, so call before visiting.
How can I verify David Nguyen, DO's license?
NPPES lists California license number 20A17696, 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 David Nguyen, DO prescribe under Medicare Part D?
In 2024, David Nguyen, DO had 2,290 Medicare Part D claims for 191 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.