Michael Cheng, DO
Rheumatology Physician · Orange, CA
Michael Cheng, DO is a rheumatology physician with a practice address in Orange, California, and NPI 1003109513, issued on May 17, 2011. Check the license (California 20A12483, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Cheng
- Credential
- DO
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 20A12483 CA
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S, Orange, CA 92868
- Phone
- (714) 456-7110
- Enumerated
- May 17, 2011
- Record last updated
- Jun 28, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160502002144); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 101 The City Dr S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danny Abad, PAPhysician Assistant1477158673
- Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
- Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
- Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
- Eric AbelloOtolaryngology Physician1922566215
- Brandon Abeyta, MDAnesthesiology Physician1841291804
Verify Michael Cheng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A12483Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,166 Medicare Part D claims for 166 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Prednisone97 claims
- Hydroxychloroquine Sulfate93 claims
- Methotrexate84 claims
- Colchicine62 claims
- Celecoxib60 claims
- Meloxicam46 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): 100 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).
Industry payments in 2024: $4,037.92
5 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- UC RegentsOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Cheng among 926 rheumatology physician records in California
Michael Cheng, DO is one of 926 rheumatology 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 2011, is newer than 68% of them.
- NPI issued2011 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2011 · median 2003 among the 641 with a school on file
- Record last updated2019 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Orange → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Brian S Andrews, MDOrange, CA 928681609970292
- Caroline BuiOrange, CA 928681821626482
- Ian Chang, D.O.Orange, CA 928681407116411
- Sheetal Desai, MDOrange, CA 928681699966861
- Priyanka Iyer, M.B.B.S, M.P.HOrange, CA 928681245662055
- Behnam Khaleghi, MDOrange, CA 928681154306678
- George Lawry, MDOrange, CA 928681043208994
- Joo-Hyung Lee, MDOrange, CA 928681306891346
Common questions
What is Michael Cheng, DO's NPI number?
Michael Cheng, DO's National Provider Identifier (NPI) is 1003109513, issued on May 17, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Michael Cheng, DO located?
The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 456-7110. Providers update this record themselves, so call before visiting.
How can I verify Michael Cheng, DO's license?
NPPES lists California license number 20A12483, 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 Michael Cheng, DO prescribe under Medicare Part D?
In 2024, Michael Cheng, DO had 1,166 Medicare Part D claims for 166 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Michael Cheng, DO's MIPS final score?
The 2023 MIPS final score is 100 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.