Kelly Chia-I Tang, DO
Family Medicine Physician · Irvine, CA
Kelly Chia-I Tang, DO is a family medicine physician with a practice address in Irvine, California, and NPI 1831752450, issued on Apr 18, 2019. Check the license (California 20A23712, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kelly Chia-I Tang
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 20A23712 CA
OS19548 FL
OL61429594 WA
Self-reported in NPPES; status is on the state search - Practice location
- 16300 Sand Canyon Ave Ste 311, Irvine, CA 92618
- Phone
- (949) 791-3101
- Enumerated
- Apr 18, 2019
- Record last updated
- Jun 19, 2025
- Fax
- (949) 791-3112
- Medicare enrollment
- Enrolled (PECOS I20250630002091); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 16300 Sand Canyon Ave Ste 311
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Farhan Ayoub, MDInternal Medicine Physician1699295501
- Savitha Bharadwaj, M.D.Internal Medicine Physician1760470926
- Amy Fung, MDFamily Medicine Physician1427548023
- Kristy Huffman, FNP-CFamily Nurse Practitioner1659295137
- Anna Jurovich, MSN FNPFamily Nurse Practitioner1992692966
- John Kao, MDInternal Medicine Physician1568780468
Verify Kelly Chia-I Tang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A23712Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average family medicine physician in 2024
236 Medicare Part D claims for 52 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Famotidine16 claims
- Quetiapine Fumarate16 claims
- Atorvastatin Calcium14 claims
- Albuterol Sulfate Hfa13 claims
- Losartan Potassium12 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 MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Hoag ClinicSan Clemente, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kelly Chia-I Tang among 17,133 family medicine physician records in California
Kelly Chia-I Tang, 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 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2020 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 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).
148 family medicine physician records list a practice address in Irvine
They are 148 of the 7,778 NPPES records with a practice address in Irvine, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Irvine → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Albert Chang, M.D.Irvine, CA 926181790755569
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- Firoozeh Jahroumi, M.D.Irvine, CA 926181053310946
- Suzanne Kim, MDIrvine, CA 926181295795508
- Ronald Lee, MDIrvine, CA 926181417954306
- Thuy Nguyen, D.O.Irvine, CA 926181386688471
- Alan Nili, D.O.Irvine, CA 926181356366835
- Bradley Noon, M.D.Irvine, CA 926181740209014
Common questions
What is Kelly Chia-I Tang, DO's NPI number?
Kelly Chia-I Tang, DO's National Provider Identifier (NPI) is 1831752450, issued on Apr 18, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Kelly Chia-I Tang, DO located?
The NPPES record lists a practice address at 16300 Sand Canyon Ave Ste 311, Irvine, CA, 92618. Phone: (949) 791-3101. Providers update this record themselves, so call before visiting.
How can I verify Kelly Chia-I Tang, DO's license?
NPPES lists California license number 20A23712, 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 Kelly Chia-I Tang, DO prescribe under Medicare Part D?
In 2024, Kelly Chia-I Tang, DO had 236 Medicare Part D claims for 52 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Kelly Chia-I Tang, DO's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. 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.