Dr. Peter Sungjin Pak, MD

Dr. Pak practices at Mission Hospital - Unit in Mission Viejo, California.

Dr. Pak's NPI, 1588955694, was assigned on April 22, 2011. Dr. Pak graduated from Albert Einstein College of Medicine in 2011. Dr. Pak holds California license A139698.

Dr. Pak's primary practice is Mission Hospital - Unit, at 27700 Medical Center Rd, Mission Viejo, CA 92691 in Orange County. The practice phone is (949) 365-2447.

Dr. Pak's primary practice is Mission Hospital - Unit in Mission Viejo, California. Dr. Pak is also affiliated with Providence Mission Hospital. The medical group on file is OC Surgeons, Saddleback Valley Surgical. Dmand AI also links Dr. Pak to 2 more hospitals and 5 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pak practices, 4 sites in all. Vendor and product names are available with a free account.

Trauma surgery is Dr. Pak's primary specialty in the NPI Registry, under taxonomy code 2086S0127X. Dr. Pak is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Pak's licenses on file in 3 states: California, Maryland and New York.

Dmand AI lists multiple traumatic injuries, non-surgical back problems and traumatic coma among the conditions Dr. Pak treats.

CMS data shows 441 Medicare services from Dr. Pak across 9 procedure codes in 2024, for 266 Medicare patients. Medicare paid $54,629 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 266 Medicare patients who saw Dr. Pak in 2024. The largest group is 75 to 84, with 107 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 2.01, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Pak's median patient age at 58, with 43% women.

In 2022, Dr. Pak wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $80 in total drug cost. In 2017, CMS named 26 claims across 2 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Pak for performance year 2024, reported as part of a group. Dr. Pak accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 1 paper to Dr. Pak. Dr. Pak's most frequent co-authors are Robert B. Cameron, MD, Jay M. Lee, MD and Scott Douglas Nelson, MD.

CMS Open Payments shows 36 general payments to Dr. Pak from 11 drug and device companies from 2016 to 2025. Education make up the largest share, 65% of the total. Intuitive Surgical, Inc. paid the most, $4,641.

Dr. Pak graduated from Albert Einstein College of Medicine in 2011.

Dr. Pak is in network with 8 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.