NPPES file of Aug 9, 2026

Yitian Timothy Kiong, M.D.

Psychiatry Physician · Duarte, CA

Yitian Timothy Kiong, M.D. is a psychiatry physician with a practice address in Duarte, California, and NPI 1164838884, issued on Jul 2, 2014. Check the license (California A160048, 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
1164838884
Name
Yitian Timothy Kiong
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
A160048 CA
294262-1 NY
Self-reported in NPPES; status is on the state search
Practice location
1500 Duarte RD, Duarte, CA 91010
Phone
(626) 256-4673
Enumerated
Jul 2, 2014
Record last updated
Feb 9, 2023
Medicare enrollment
Enrolled (PECOS I20190326000079); 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 1500 Duarte RD

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

  1. Chelsea Abad, CRNP, AGPCNP - BCGerontology Nurse Practitioner1952848137
  2. Wajidah Abdul-KhabirHospitalist Physician1215323522
  3. Farah Abdulla, MDDermatology Physician1093934390
  4. Megan Abel, PA-CPhysician Assistant1104100619
  5. Michelle Afkhami, M.D.Hematology (Pathology) Physician1326230228
  6. Vaibhav Agrawal, M.D.Hematology & Oncology Physician1538402565

Verify Yitian Timothy Kiong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A160048
    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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51% fewer Medicare Part D claims than the average psychiatry physician in 2024

486 Medicare Part D claims for 66 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Yitian Timothy Kiong486
  2. Specialty average1,000

Most prescribed

  1. Mirtazapine65 claims
  2. Sertraline Hcl41 claims
  3. Olanzapine39 claims
  4. Quetiapine Fumarate35 claims
  5. Duloxetine Hcl29 claims
  6. Trazodone Hcl26 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): 85.7 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 score65.8
  2. Costout of 100 · 30%59.4
  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).

Bills Medicare through one group practice

  1. City OF Hope Medical FoundationDuarte, CA

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

Yitian Timothy Kiong among 8,673 psychiatry physician records in California

Yitian Timothy Kiong, 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 2014, is newer than 71% of them.

  • NPI issued2014 · 71% of these records are older, 26% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2013 · median 2005 among the 3,295 with a school on file
  • Record last updated2023 · 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).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Siva AvulaDuarte, CA 910101043696727
  2. Reta Floyd, M.D.Duarte, CA 910101194813980
  3. Gene Lui, D.O.Duarte, CA 910101669496535
  4. Xiomara Rocha-Cadman, M.D.Duarte, CA 910101033391966
  5. Jaroslava Salman, PHDDuarte, CA 910101376723122
  6. Kimberly Shapiro, MDDuarte, CA 910101033371836
  7. Syuzanna AvetyanLa Canada, CA 910111063108439
  8. Joel Badeaux, M.D.La Canada Flintridge, CA 910111992953517

Common questions

What is Yitian Timothy Kiong, M.D.'s NPI number?

Yitian Timothy Kiong, M.D.'s National Provider Identifier (NPI) is 1164838884, issued on Jul 2, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Yitian Timothy Kiong, M.D. located?

The NPPES record lists a practice address at 1500 Duarte RD, Duarte, CA, 91010. Phone: (626) 256-4673. Providers update this record themselves, so call before visiting.

How can I verify Yitian Timothy Kiong, M.D.'s license?

NPPES lists California license number A160048, 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 Yitian Timothy Kiong, M.D. prescribe under Medicare Part D?

In 2024, Yitian Timothy Kiong, M.D. had 486 Medicare Part D claims for 66 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is Yitian Timothy Kiong, M.D.'s MIPS final score?

The 2023 MIPS final score is 85.7 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.