NPPES file of Aug 9, 2026

Robert Tri Bao Diep, M.D.

Hematology (Internal Medicine) Physician · Palo Alto, CA

Robert Tri Bao Diep, M.D. is a hematology (internal medicine) physician with a practice address in Palo Alto, California, and NPI 1497140537, issued on Apr 6, 2015. Check the license (California A172103, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497140537
Name
Robert Tri Bao Diep
Credential
M.D.
Primary taxonomy
Hematology (Internal Medicine) Physician 207RH0000X
License numbers
A172103 CA
MD60848580 WA
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr, Palo Alto, CA 94304
Phone
(650) 723-4000
Enumerated
Apr 6, 2015
Record last updated
Apr 28, 2024
Medicare enrollment
Enrolled (PECOS I20210827001631); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 300 Pasteur Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Elias Aboujaoude, MDPsychiatry Physician1649209768
  2. Connor Adams, PSYDClinical Psychologist1467081216
  3. Terence Ahern, MDEmergency Medicine Physician1104195916
  4. Teddy Akiki, MDPsychiatry Physician1942867718
  5. Amy Alexander, M.D.Psychiatry Physician1740435486
  6. Monica Allen, PSYDClinical Psychologist1952787749

Verify Robert Tri Bao Diep in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A172103
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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65% fewer Medicare Part D claims than the average hematology (internal medicine) physician in 2024

175 Medicare Part D claims for 49 beneficiaries, against an average of 496 among the 1,036 providers of this specialty who prescribed in Part D. Brand-name drugs were 59% of claims. 33 claims were for opioids.

  1. Robert Diep175
  2. Specialty average496

Most prescribed

  1. Eliquis49 claims
  2. Oxycodone Hcl16 claims
  3. Xarelto15 claims
  4. Cyclosporine Modified14 claims
  5. Oxycontin14 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.3
  2. Costout of 100 · 30%44.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

One hospital affiliation

  1. Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Robert Tri Bao Diep among 175 hematology (internal medicine) physician records in California

Robert Tri Bao Diep, M.D. is one of 175 hematology (internal medicine) physician records with a practice address in California. 89% 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 87% of them.

  • NPI issued2015 · 87% of these records are older, 10% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated2015 · median 2006 among the 135 with a school on file
  • Record last updated2024 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology (Internal Medicine) Physician providers in California

There are 175 hematology (internal medicine) physician records in California.

The 8 hematology (internal medicine) physician records with the nearest ZIP codes

  1. Bita Fakhri, M.D., M.P.HPalo Alto, CA 943041568729424
  2. Jason Gotlib, M.D., M.S.Palo Alto, CA 943041790827640
  3. Judy Cheng, MDStanford, CA 943051568577906
  4. Wei Ding, MDStanford, CA 943051265454201
  5. Calvin Kuo, M.D. PH.D.Stanford, CA 943051609954825
  6. Lawrence Leung, M.D.Stanford, CA 943051356388383
  7. James Malone, MDStanford, CA 943051457343113
  8. Beth Martin, MDStanford, CA 943051134154420

Common questions

What is Robert Tri Bao Diep, M.D.'s NPI number?

Robert Tri Bao Diep, M.D.'s National Provider Identifier (NPI) is 1497140537, issued on Apr 6, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Robert Tri Bao Diep, M.D. located?

The NPPES record lists a practice address at 300 Pasteur Dr, Palo Alto, CA, 94304. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.

How can I verify Robert Tri Bao Diep, M.D.'s license?

NPPES lists California license number A172103, 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 Tri Bao Diep, M.D. prescribe under Medicare Part D?

In 2024, Robert Tri Bao Diep, M.D. had 175 Medicare Part D claims for 49 beneficiaries; the average among hematology (internal medicine) physician prescribers was 496. Part D covers Medicare prescriptions only.

What is Robert Tri Bao Diep, M.D.'s MIPS final score?

The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.