NPPES file of Aug 9, 2026

Phong Thanh Dao, D.O.

Internal Medicine Physician · San Diego, CA

Phong Thanh Dao, D.O. is an internal medicine physician with a practice address in San Diego, California, and NPI 1902822265, issued on Jul 13, 2006. Check the license (California 20A9502, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902822265
Name
Phong Thanh Dao
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20A9502 CA
Self-reported in NPPES; status is on the state search
Practice location
9225 Mira Mesa Blvd, San Diego, CA 92126
Phone
(858) 831-1567
Enumerated
Jul 13, 2006
Record last updated
Jul 8, 2007 (not updated in 19 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 9225 Mira Mesa Blvd

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

  1. James Brodfuehrer, DDSDentist1104978030
  2. Daniel Harrigan, D.D.S.General Practice Dentistry1851658462
  3. Yen Le, DDSOrthodontics and Dentofacial Orthopedics Dentistry1609952084
  4. Dennis Marion, D.C.Chiropractor1114915501
  5. Hoang Nguyen, DDSGeneral Practice Dentistry1629123633
  6. Ruby Reyes, DDSDentist1053441600

Verify Phong Thanh Dao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A9502
    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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Phong Thanh Dao among 17,696 internal medicine physician records in California

Phong Thanh Dao, D.O. 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 not. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Gabriel Fabella, M.D.San Diego, CA 921261124060827
  2. Tung Lai, MDSan Diego, CA 921261154317022
  3. Stephen Leibham, M.D.San Diego, CA 921261366451593
  4. Kenny Mai, D.OSan Diego, CA 921261760703623
  5. Julius Conner, M.D.San Diego, CA 921271902919871
  6. Laura Cooke, MD, MPHSan Diego, CA 921271477560506
  7. Lisa Ellis, M.D.San Diego, CA 921271245214923
  8. Sonia Holmes, MDSan Diego, CA 921271689665564

Common questions

What is Phong Thanh Dao, D.O.'s NPI number?

Phong Thanh Dao, D.O.'s National Provider Identifier (NPI) is 1902822265, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Phong Thanh Dao, D.O. located?

The NPPES record lists a practice address at 9225 Mira Mesa Blvd, San Diego, CA, 92126. Phone: (858) 831-1567. Providers update this record themselves, so call before visiting.

How can I verify Phong Thanh Dao, D.O.'s license?

NPPES lists California license number 20A9502, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.