Chyansong J. Tzan, MD
Anesthesiology Physician · Glendora, CA
Chyansong J. Tzan, MD is an anesthesiology physician with a practice address in Glendora, California, and NPI 1184612210, issued on Oct 12, 2005. Check the license (California C52948, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chyansong J. Tzan
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- C52948 CA
L0669 TX
Self-reported in NPPES; status is on the state search - Practice location
- 250 S Grand Ave, Glendora, CA 91741
- Phone
- (626) 963-8411
- Enumerated
- Oct 12, 2005
- Record last updated
- Sep 20, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040412000875); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 250 S Grand Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Ronald Alcantara, RNEmergency Registered Nurse1306538905
- Mari AlmondEmergency Registered Nurse1689220493
- Josue BlancoEmergency Registered Nurse1790331486
- Martin Bohorquez, M.D.Anesthesiology Physician1073569307
- Yong Chen, M.D.Anesthesiology Physician1528247608
- Michael Deyoung, MDEmergency Medicine Physician1801822606
Verify Chyansong J. Tzan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C52948Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 95 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Austin Anesthesiology Group PLLCAustin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chyansong J. Tzan among 7,571 anesthesiology physician records in California
Chyansong J. Tzan, MD is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1986 · median 2006 among the 4,868 with a school on file
- Record last updated2016 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in California
There are 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Glendora → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Martin Bohorquez, M.D.Glendora, CA 917411073569307
- Yong Chen, M.D.Glendora, CA 917411528247608
- George Fedor, M.D.Glendora, CA 917411801987722
- Wei Li, M.D.Glendora, CA 917411144267907
- Mohammed Naji, M.DGlendora, CA 917411508825332
- Jose Zozaya, M.D.Glendora, CA 917411760679922
- Lewis Coleman, MDGlendora, CA 917401811943665
- Camilo Primero, M.D.Glendora, CA 917401295804029
Common questions
What is Chyansong J. Tzan, MD's NPI number?
Chyansong J. Tzan, MD's National Provider Identifier (NPI) is 1184612210, issued on Oct 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Chyansong J. Tzan, MD located?
The NPPES record lists a practice address at 250 S Grand Ave, Glendora, CA, 91741. Phone: (626) 963-8411. Providers update this record themselves, so call before visiting.
How can I verify Chyansong J. Tzan, MD's license?
NPPES lists California license number C52948, 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 Chyansong J. Tzan, MD's MIPS final score?
The 2023 MIPS final score is 95 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.