NPPES file of Aug 9, 2026

Tony L. Yang

Anatomic Pathology & Clinical Pathology Physician · Modesto, CA

Tony L. Yang is an anatomic pathology & clinical pathology physician with a practice address in Modesto, California, and NPI 1821126350, issued on Feb 28, 2007. Check the license (California A81186, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821126350
Name
Tony L. Yang
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
A81186 CA
Self-reported in NPPES; status is on the state search
Practice location
4301 N Star Way, Modesto, CA 95356
Phone
(209) 577-1200
Enumerated
Feb 28, 2007
Record last updated
Jul 21, 2022
Fax
(209) 577-6517
Medicare enrollment
Enrolled (PECOS I20150429002044); accepts Medicare assignment
Medical or professional school
University Of Michigan Medical School, 2001
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 4301 N Star Way

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

  1. Cortney Allen, PAHistology Specialist/Technologist1962049239
  2. Marnelli Bautista-Quach, MDAnatomic Pathology & Clinical Pathology Physician1083887442
  3. Marite Campos, MDAnatomic Pathology & Clinical Pathology Physician1366626509
  4. Harvey Chang, M.D.Anatomic Pathology & Clinical Pathology Physician1629074810
  5. Prakashchandra Chaudhari, MDAnatomic Pathology & Clinical Pathology Physician1518073451
  6. Jonathan Chow, M.D.Anatomic Pathology & Clinical Pathology Physician1306008412

Verify Tony L. Yang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A81186
    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

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The practice group's MIPS final score for 2023 (Medicare payment program): 63.5 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 score53.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  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. Yosemite Pathology Medical Group IncModesto, CA

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

Tony L. Yang among 1,554 anatomic pathology & clinical pathology physician records in California

Tony L. Yang is one of 1,554 anatomic pathology & clinical pathology physician records with a practice address in California. 65% 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 43% of them.

  • NPI issued2007 · 43% of these records are older, 43% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2001 · median 2003 among the 891 with a school on file
  • Record last updated2022 · 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 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in California

There are 1,554 anatomic pathology & clinical pathology physician records in California.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Alfredo Asuncion, M.D.Modesto, CA 953561457329872
  2. Steven Baker, M.D.Modesto, CA 953561942269147
  3. Harvey Chang, M.D.Modesto, CA 953561629074810
  4. Prakashchandra Chaudhari, MDModesto, CA 953561518073451
  5. Stephen Connolly, MDModesto, CA 953561487688818
  6. Steven Fogel, M.D.Modesto, CA 953561982663837
  7. Donovan Hare, MDModesto, CA 953561336215383
  8. Emad Kaabipour, M.D.Modesto, CA 953561952360364

Common questions

What is Tony L. Yang's NPI number?

Tony L. Yang's National Provider Identifier (NPI) is 1821126350, issued on Feb 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Tony L. Yang located?

The NPPES record lists a practice address at 4301 N Star Way, Modesto, CA, 95356. Phone: (209) 577-1200. Providers update this record themselves, so call before visiting.

How can I verify Tony L. Yang's license?

NPPES lists California license number A81186, 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.

What is Tony L. Yang's MIPS final score?

The 2023 MIPS final score is 63.5 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.