Peter Sungjin Pak, M.D.
Trauma Surgery Physician · Mission Viejo, CA
Peter Sungjin Pak, M.D. is a trauma surgery physician with a practice address in Mission Viejo, California, and NPI 1588955694, issued on Apr 22, 2011. Check the license (California A139698, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Peter Sungjin Pak
- Credential
- M.D.
- Primary taxonomy
- Trauma Surgery Physician 2086S0127X
- License numbers
- A139698 CA
D86651 MD
Self-reported in NPPES; status is on the state search - Practice location
- 27799 Medical Center RD Ste 440, Mission Viejo, CA 92691
- Phone
- (949) 364-1007
- Enumerated
- Apr 22, 2011
- Record last updated
- Jul 19, 2024
- Fax
- (949) 264-0317
- Medicare enrollment
- Enrolled (PECOS I20170207002001); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2011
- Entity
- Type 1 · individual
8 nearest trauma surgery physician records → All 146 in California → Look up another NPI →
Also registered at 27799 Medical Center RD Ste 440
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marla Anderson, MDSurgery Physician1528130333
- Ashton Christian, MDSurgery Physician1699207704
- Alison Forbes, NPAcute Care Nurse Practitioner1659504298
- Elliot Silver, M.D.Surgery Physician1255862801
Verify Peter Sungjin Pak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A139698Check 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): 76.3 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).
Industry payments in 2024: $4,871.55
19 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 762 providers of this specialty with any payment received $2,324.59 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 2 group practices
- OC Trauma IncMission Viejo, CA
- The Institute OF Trauma And Acute Care IncPomona, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter Sungjin Pak among 146 trauma surgery physician records in California
Peter Sungjin Pak, M.D. is one of 146 trauma surgery physician records with a practice address in California. 88% 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 65% of them.
- NPI issued2011 · 65% of these records are older, 31% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2011 · median 2007 among the 117 with a school on file
- Record last updated2024 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0127X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Trauma Surgery Physician providers in California
There are 146 trauma surgery physician records in California.
All 146 in California → Every provider in Mission Viejo → Trauma Surgery Physician nationwide →
The 8 trauma surgery physician records with the nearest ZIP codes
- Christopher Lane, MDSanta Ana, CA 927051598736779
- Jin Sui, MDSanta Ana, CA 927051114411352
- Navpreet Dhillon, MDMoreno Valley, CA 925551407276736
- Cristobal Barrios, MDOrange, CA 928681164624839
- Sigrid Burruss, M.D.Orange, CA 928681942458013
- Theresa Chin, M.D.Orange, CA 928681407020951
- James Jeng, MDOrange, CA 928681407847775
- Victor Joe, MDOrange, CA 928681164539953
Common questions
What is Peter Sungjin Pak, M.D.'s NPI number?
Peter Sungjin Pak, M.D.'s National Provider Identifier (NPI) is 1588955694, issued on Apr 22, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Peter Sungjin Pak, M.D. located?
The NPPES record lists a practice address at 27799 Medical Center RD Ste 440, Mission Viejo, CA, 92691. Phone: (949) 364-1007. Providers update this record themselves, so call before visiting.
How can I verify Peter Sungjin Pak, M.D.'s license?
NPPES lists California license number A139698, 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 Peter Sungjin Pak, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.3 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.