Nguyen Dinh Nguyen, M.D.
Internal Medicine Physician · San Diego, CA
Nguyen Dinh Nguyen, M.D. is an internal medicine physician with a practice address in San Diego, California, and NPI 1508800202, issued on Jun 15, 2006. Check the license (California A85423, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nguyen Dinh Nguyen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A85423 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8765 Aero Dr, San Diego, CA 92123
- Phone
- (858) 541-0181
- Enumerated
- Jun 15, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (858) 430-0919
- Medicaid ID
- 00A854230 CA
- Medicare enrollment
- Enrolled (PECOS I20040427001366); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 2000
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 8765 Aero Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Diane Brooks, N.P.Nurse Practitioner1669566477
- Nittly Chahal, M.D.Internal Medicine Physician1164682480
- Edward CladeraInternal Medicine Physician1588810329
- Kate Allison Domingo, NPFamily Nurse Practitioner1215216916
- Rolf Ehlers, M.D.Internal Medicine Physician1205939832
- Jennifer Lyons, PA-CMedical Physician Assistant1841495140
Verify Nguyen Dinh Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A85423Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
301 Medicare Part D claims for 152 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Doxycycline Hyclate17 claims
- Eliquis16 claims
- Furosemide14 claims
- Amoxicillin-Clavulanate Potass13 claims
- Prednisone12 claims
- Cephalexin11 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: $121.83
1 payment: food and beverage; the largest payer was Scpharmaceuticals Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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 2 group practices
- Emergency And Acute Care Medical CorporationSan Diego, CA
- Focus ON Health IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nguyen Dinh Nguyen among 17,696 internal medicine physician records in California
Nguyen Dinh Nguyen, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2000 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
961 internal medicine physician records list a practice address in San Diego
They are 961 of the 52,937 NPPES records with a practice address in San Diego, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Diego → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Paulette Cazares, M.D., MPHSan Diego, CA 921231710927470
- Sarah Coskun, M.D.San Diego, CA 921231104878545
- Asim Guha Roy, MDSan Diego, CA 921231083659528
- Elan Hekier, M.D.San Diego, CA 921231225092463
- Faiz Hussain, MDSan Diego, CA 921231962422147
- Bernard Lichtenstein, M.D.San Diego, CA 921231104878073
- Karim Mansour, M.D.San Diego, CA 921231942238878
- Lynne Milgram, M.D.San Diego, CA 921231629016316
Common questions
What is Nguyen Dinh Nguyen, M.D.'s NPI number?
Nguyen Dinh Nguyen, M.D.'s National Provider Identifier (NPI) is 1508800202, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nguyen Dinh Nguyen, M.D. located?
The NPPES record lists a practice address at 8765 Aero Dr, San Diego, CA, 92123. Phone: (858) 541-0181. Providers update this record themselves, so call before visiting.
How can I verify Nguyen Dinh Nguyen, M.D.'s license?
NPPES lists California license number A85423, 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 Dinh Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Nguyen Dinh Nguyen, M.D. had 301 Medicare Part D claims for 152 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.