NPPES file of Aug 9, 2026

Chester Tung, DO

Family Medicine Physician · Westminster, CA

Chester Tung, DO is a family medicine physician with a practice address in Westminster, California, and NPI 1588907901, issued on Apr 3, 2013. Check the license (California 20A14855, 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
1588907901
Name
Chester Tung
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A14855 CA
Self-reported in NPPES; status is on the state search
Practice location
15573 Brookhurst St, Westminster, CA 92683
Phone
(714) 775-3066
Enumerated
Apr 3, 2013
Record last updated
Nov 20, 2023
Fax
(714) 531-2915
Medicare enrollment
Enrolled (PECOS I20160923000993); accepts Medicare assignment
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 Chester Tung in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A14855
    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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45% fewer Medicare Part D claims than the average family medicine physician in 2024

1,939 Medicare Part D claims for 540 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Chester Tung1,939
  2. Specialty average3,544

Most prescribed

  1. Azithromycin154 claims
  2. Diclofenac Sodium98 claims
  3. Atorvastatin Calcium93 claims
  4. Amlodipine Besylate78 claims
  5. Fluticasone Propionate73 claims
  6. Losartan Potassium69 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): 92.4 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 score72.1
  2. Costout of 100 · 30%81.4
  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).

Industry payments in 2024: $834.92

34 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Chester Tung$834.92
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Physician Partners Medical Group IncWestminster, CA

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

Chester Tung among 17,133 family medicine physician records in California

Chester Tung, DO is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 68% of them.

  • NPI issued2013 · 68% of these records are older, 29% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2013 · median 2005 among the 10,652 with a school on file
  • Record last updated2023 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

37 family medicine physician records list a practice address in Westminster

They are 37 of the 1,306 NPPES records with a practice address in Westminster, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Thuy Bui, MDWestminster, CA 926831619990587
  2. Chung Bui, M.D.Westminster, CA 926831427143072
  3. Dinh Dinh, DOWestminster, CA 926831972600856
  4. Jason Hart, M.D.Westminster, CA 926831780614602
  5. Jamie Lewis, M.D.Westminster, CA 926831073584173
  6. Diane Nguyen, MDWestminster, CA 926831225065428
  7. Gary Ohashi, M.D.Westminster, CA 926831417928516
  8. Trung Pham, M.D.Westminster, CA 926831851355101

Common questions

What is Chester Tung, DO's NPI number?

Chester Tung, DO's National Provider Identifier (NPI) is 1588907901, issued on Apr 3, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Chester Tung, DO located?

The NPPES record lists a practice address at 15573 Brookhurst St, Westminster, CA, 92683. Phone: (714) 775-3066. Providers update this record themselves, so call before visiting.

How can I verify Chester Tung, DO's license?

NPPES lists California license number 20A14855, 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 Chester Tung, DO prescribe under Medicare Part D?

In 2024, Chester Tung, DO had 1,939 Medicare Part D claims for 540 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Chester Tung, DO's MIPS final score?

The 2023 MIPS final score is 92.4 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.