NPPES file of Aug 9, 2026

Douglas H. Phan, M.D.

Psychiatry Physician · Riverside, CA

Douglas H. Phan, M.D. is a psychiatry physician with a practice address in Riverside, California, and NPI 1366671992, issued on Jul 2, 2009. Check the license (California A114481, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366671992
Name
Douglas H. Phan
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A114481 CA
Self-reported in NPPES; status is on the state search
Practice location
769 W Blaine St, Riverside, CA 92507
Phone
(951) 358-4705
Enumerated
Jul 2, 2009
Record last updated
Oct 20, 2016 (not updated in 10 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 769 W Blaine St

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

  1. Maria AguilarMental Health Counselor1619409570
  2. Ascencion Amado, MAMarriage & Family Therapist1760560882
  3. Musashi AvalosStudent in an Organized Health Care Education/Training Program1831082221
  4. Lillian BenitezMental Health Counselor1770855744
  5. Laverne Bennett, RN,MSN, PMHNPPsychiatric/Mental Health Nurse Practitioner1033547666
  6. Brooke Berry, LCSWClinical Social Worker1659410835

Verify Douglas H. Phan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A114481
    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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8.5 times the Medicare Part D claims of the average psychiatry physician in 2024

8,526 Medicare Part D claims for 378 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Douglas Phan8,526
  2. Specialty average1,000

Most prescribed

  1. Trazodone Hcl730 claims
  2. Olanzapine651 claims
  3. Quetiapine Fumarate607 claims
  4. Risperidone580 claims
  5. Benztropine Mesylate505 claims
  6. Sertraline Hcl353 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.

Douglas H. Phan among 8,673 psychiatry physician records in California

Douglas H. Phan, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 57% of them.

  • NPI issued2009 · 57% of these records are older, 40% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2016 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

134 psychiatry physician records list a practice address in Riverside

They are 134 of the 13,893 NPPES records with a practice address in Riverside, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Arthur Amador, MDRiverside, CA 925071043203466
  2. Brendon Brockmann, MDRiverside, CA 925071679815765
  3. Payton Brown, MDRiverside, CA 925071669434361
  4. Ramy Elsawah, MDRiverside, CA 925071407482508
  5. Jonathan Kim, M.D.Riverside, CA 925071962643379
  6. John Koleth, MDRiverside, CA 925071902086770
  7. John LiiRiverside, CA 925071508125733
  8. Jing LuRiverside, CA 925071043401565

Common questions

What is Douglas H. Phan, M.D.'s NPI number?

Douglas H. Phan, M.D.'s National Provider Identifier (NPI) is 1366671992, issued on Jul 2, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Douglas H. Phan, M.D. located?

The NPPES record lists a practice address at 769 W Blaine St, Riverside, CA, 92507. Phone: (951) 358-4705. Providers update this record themselves, so call before visiting.

How can I verify Douglas H. Phan, M.D.'s license?

NPPES lists California license number A114481, 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 Douglas H. Phan, M.D. prescribe under Medicare Part D?

In 2024, Douglas H. Phan, M.D. had 8,526 Medicare Part D claims for 378 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.