Robert T. Nguyen, M.D., M.P.H.
Hospice and Palliative Medicine (Internal Medicine) Physician · Irvine, CA
Robert T. Nguyen, M.D., M.P.H. is a hospice and palliative medicine (internal medicine) physician with a practice address in Irvine, California, and NPI 1255717823, issued on Aug 6, 2015. Check the license (California A156371, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert T. Nguyen
- Credential
- M.D., M.P.H.
- Primary taxonomy
- Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
- License number
- A156371 CA
Self-reported in NPPES; status is on the state search - Practice location
- 310 Commerce Ste 200, Irvine, CA 92602
- Phone
- (714) 921-2273
- Enumerated
- Aug 6, 2015
- Record last updated
- Jan 11, 2023
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (internal medicine) physician records → All 260 in California → Look up another NPI →
Also registered at 310 Commerce Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paul ChoNurse Practitioner1588421853
- Reseda CoxCommunity Health Worker1245190719
- Amy Le, NURSE PRACTITIONERFamily Nurse Practitioner1598429045
- Joan Moss, MDInternal Medicine Physician1053330860
- Thao Nguyen, MDHospice and Palliative Medicine (Family Medicine) Physician1467194845
Verify Robert T. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A156371Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024
320 Medicare Part D claims for 87 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Levothyroxine Sodium23 claims
- Gabapentin17 claims
- Pantoprazole Sodium17 claims
- Furosemide16 claims
- Metoprolol Succinate13 claims
- Midodrine Hcl12 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.
Robert T. Nguyen among 260 hospice and palliative medicine (internal medicine) physician records in California
Robert T. Nguyen, M.D., M.P.H. is one of 260 hospice and palliative medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 69% of them.
- NPI issued2015 · 69% of these records are older, 26% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2023 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospice and Palliative Medicine (Internal Medicine) Physician providers in California
There are 260 hospice and palliative medicine (internal medicine) physician records in California.
All 260 in California → Every provider in Irvine → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →
The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes
- Jamie Fertal, D.O.Irvine, CA 926181447456769
- Linda Hillebrand, DOIrvine, CA 926181336183243
- Babak Jamasian MobarakehIrvine, CA 926181396270112
- Richard Lee, MDIrvine, CA 926181255503850
- Kaishauna Guidry, MD, HMDCMurrieta, CA 925631659726206
- Stephen Ryder, M.D.Murrieta, CA 925621134221120
- Ronald McCowan, M.D.Moreno Valley, CA 925551801937313
- Kara Kerns, M.D.Newport Beach, CA 926631174803431
Common questions
What is Robert T. Nguyen, M.D., M.P.H.'s NPI number?
Robert T. Nguyen, M.D., M.P.H.'s National Provider Identifier (NPI) is 1255717823, issued on Aug 6, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Robert T. Nguyen, M.D., M.P.H. located?
The NPPES record lists a practice address at 310 Commerce Ste 200, Irvine, CA, 92602. Phone: (714) 921-2273. Providers update this record themselves, so call before visiting.
How can I verify Robert T. Nguyen, M.D., M.P.H.'s license?
NPPES lists California license number A156371, 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 Robert T. Nguyen, M.D., M.P.H. prescribe under Medicare Part D?
In 2024, Robert T. Nguyen, M.D., M.P.H. had 320 Medicare Part D claims for 87 beneficiaries; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. 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.