Man Ryul Shim, M.D.
Rheumatology Physician · Costa Mesa, CA
Man Ryul Shim, M.D. is a rheumatology physician with a practice address in Costa Mesa, California, and NPI 1356536007, issued on Sep 6, 2007. Check the license (California A97707, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Man Ryul Shim
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A97707 CA
Self-reported in NPPES; status is on the state search - Practice location
- 722 Baker St, Costa Mesa, CA 92626
- Phone
- (714) 557-6300
- Enumerated
- Sep 6, 2007
- Record last updated
- May 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (714) 966-9567
- Medicare enrollment
- Enrolled (PECOS I20111111000092); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 722 Baker St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Man Ryul Shim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A97707Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,296 Medicare Part D claims for 213 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone271 claims
- Methotrexate212 claims
- Hydroxychloroquine Sulfate162 claims
- Folic Acid69 claims
- Leflunomide52 claims
- Enbrel Sureclick48 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): 76.7 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
- Memorialcare Medical FoundationCosta Mesa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Man Ryul Shim among 926 rheumatology physician records in California
Man Ryul Shim, M.D. 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 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 42% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2005 · median 2003 among the 641 with a school on file
- Record last updated2020 · 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 Costa Mesa → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Stanley Naides, MDDana Point, CA 926291891744520
- Robert Freed, MDIrvine, CA 926181316026784
- Diana Girnita, MD, PHDIrvine, CA 926181922378116
- Nazee Farsi, MDLaguna Woods, CA 926371386826881
- Alan Schenk, M.D.Laguna Woods, CA 926371265426183
- Tracy DriverHuntington Beach, CA 926461982048112
- Wesley Mizutani, MDHuntington Beach, CA 926461699774919
- Lalitha Ananth, MDHuntington Beach, CA 926471679597033
Common questions
What is Man Ryul Shim, M.D.'s NPI number?
Man Ryul Shim, M.D.'s National Provider Identifier (NPI) is 1356536007, issued on Sep 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Man Ryul Shim, M.D. located?
The NPPES record lists a practice address at 722 Baker St, Costa Mesa, CA, 92626. Phone: (714) 557-6300. Providers update this record themselves, so call before visiting.
How can I verify Man Ryul Shim, M.D.'s license?
NPPES lists California license number A97707, 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 Man Ryul Shim, M.D. prescribe under Medicare Part D?
In 2024, Man Ryul Shim, M.D. had 1,296 Medicare Part D claims for 213 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Man Ryul Shim, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.7 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.