NPPES file of Aug 9, 2026

Tao Yan, MD, PHD

Psychiatry Physician · Loma Linda, CA

Tao Yan, MD, PHD is a psychiatry physician with a practice address in Loma Linda, California, and NPI 1396958682, issued on May 7, 2007. Check the license (California A99238, 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
1396958682
Name
Tao Yan
Credential
MD, PHD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A99238 CA
Self-reported in NPPES; status is on the state search
Practice location
11234 Anderson St RM 21005CP, Loma Linda, CA 92354
Phone
(909) 824-0800
Enumerated
May 7, 2007
Record last updated
Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080206000685); 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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Verify Tao Yan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A99238
    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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2.3 times the Medicare Part D claims of the average psychiatry physician in 2024

2,302 Medicare Part D claims for 296 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims.

  1. Tao Yan2,302
  2. Specialty average1,000

Most prescribed

  1. Quetiapine Fumarate275 claims
  2. Escitalopram Oxalate229 claims
  3. Trazodone Hcl205 claims
  4. Buspirone Hcl162 claims
  5. Bupropion Xl160 claims
  6. Mirtazapine127 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.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupRiverside, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tao Yan among 8,673 psychiatry physician records in California

Tao Yan, MD, PHD 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 2007, is newer than 33% of them.

  • NPI issued2007 · 33% of these records are older, 48% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated1992 · median 2005 among the 3,295 with a school on file
  • Record last updated2021 · 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).

47 psychiatry physician records list a practice address in Loma Linda

They are 47 of the 4,863 NPPES records with a practice address in Loma Linda, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Michael Christensen, M.D.Loma Linda, CA 923541518081967
  2. George Christison, M.D.Loma Linda, CA 923541174548135
  3. Jennifer FerrerLoma Linda, CA 923541821299660
  4. Teresa Frausto, M.D.Loma Linda, CA 923541992737068
  5. Leia Gill, M.D.Loma Linda, CA 923541396922605
  6. Carmen Gonzales-Nate, M.D.Loma Linda, CA 923541063578607
  7. Lauren Grawert, MDLoma Linda, CA 923541508093543
  8. Serafin Lalas, M.D.Loma Linda, CA 923541700050515

Common questions

What is Tao Yan, MD, PHD's NPI number?

Tao Yan, MD, PHD's National Provider Identifier (NPI) is 1396958682, issued on May 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Tao Yan, MD, PHD located?

The NPPES record lists a practice address at 11234 Anderson St RM 21005CP, Loma Linda, CA, 92354. Phone: (909) 824-0800. Providers update this record themselves, so call before visiting.

How can I verify Tao Yan, MD, PHD's license?

NPPES lists California license number A99238, 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 Tao Yan, MD, PHD prescribe under Medicare Part D?

In 2024, Tao Yan, MD, PHD had 2,302 Medicare Part D claims for 296 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.