NPPES file of Aug 9, 2026

Diane Dao Phan, MD

Student in an Organized Health Care Education/Training Program · Riverside, CA

Diane Dao Phan, MD is a student in an organized health care education/training program with a practice address in Riverside, California, and NPI 1578068474, issued on Mar 24, 2018. Check the license with the California board that licenses this profession; 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
1578068474
Name
Diane Dao Phan
Credential
MD
Primary taxonomy
Student in an Organized Health Care Education/Training Program 390200000X
Practice location
4445 Magnolia Ave., Riverside, CA 92501
Phone
(951) 788-3000
Enumerated
Mar 24, 2018
Record last updated
Mar 24, 2018 (not updated in 8 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 4445 Magnolia Ave.

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

  1. Audrey Barry, RD, CNSDRegistered Dietitian1255658704
  2. Ramneek Maan, MDStudent in an Organized Health Care Education/Training Program1861029845
  3. Miguel Quispe SanchezFamily Medicine Physician1801472501

Verify Diane Dao Phan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
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92% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024

15 Medicare Part D claims for 11 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D.

  1. Diane Phan15
  2. Specialty average185

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): 84.4 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 score90.7
  2. Costout of 100 · 30%57.4
  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).

Diane Dao Phan among 40,652 student in an organized health care education/training program records in California

Diane Dao Phan, MD is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% 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 17% of them.

  • NPI issued2018 · 17% of these records are older, 80% newer
  • In a Medicare fileYes · 16% of these records are
  • In the CMS Doctors and Clinicians fileNo · 6% of these records are
  • Record last updated2018 · 26% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

657 student in an organized health care education/training program records list a practice address in Riverside

They are 657 of the 13,893 NPPES records with a practice address in Riverside, and 40,652 student in an organized health care education/training program records in California.

The 8 student in an organized health care education/training program records with the nearest ZIP codes

  1. John Ahn, MDRiverside, CA 925011073072914
  2. Josiah ChungRiverside, CA 925011033614862
  3. Mina Elsabee, MDRiverside, CA 925011811446966
  4. Danial Fisher, DORiverside, CA 925011740414515
  5. Asma Husain, MDRiverside, CA 925011720515216
  6. Subhpaljit KaurRiverside, CA 925011750812939
  7. Eric LiaoRiverside, CA 925011760986756
  8. Darshan Manix, M.D.Riverside, CA 925011801337076

Common questions

What is Diane Dao Phan, MD's NPI number?

Diane Dao Phan, MD's National Provider Identifier (NPI) is 1578068474, issued on Mar 24, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Diane Dao Phan, MD located?

The NPPES record lists a practice address at 4445 Magnolia Ave., Riverside, CA, 92501. Phone: (951) 788-3000. Providers update this record themselves, so call before visiting.

How can I verify Diane Dao Phan, MD's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Diane Dao Phan, MD prescribe under Medicare Part D?

In 2024, Diane Dao Phan, MD had 15 Medicare Part D claims for 11 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. Part D covers Medicare prescriptions only.

What is Diane Dao Phan, MD's MIPS final score?

The 2023 MIPS final score is 84.4 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.