Jeffrey Joon-Bum So, MS, PA-C
Medical Physician Assistant · Beverly Hills, CA
Jeffrey Joon-Bum So, MS, PA-C is a medical physician assistant with a practice address in Beverly Hills, California, and NPI 1659600799, issued on Dec 21, 2009. Check the license (California PA20727, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Joon-Bum So
- Credential
- MS, PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA20727 CA
Self-reported in NPPES; status is on the state search - Practice location
- 421 N Rodeo Dr, Beverly Hills, CA 90210
- Phone
- (310) 274-5372
- Enumerated
- Dec 21, 2009
- Record last updated
- Dec 21, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (310) 274-5380
- Medicare enrollment
- Enrolled (PECOS I20100909000638); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 421 N Rodeo Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Vanessa Schindler, NPFamily Nurse Practitioner1811839004
Verify Jeffrey Joon-Bum So in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA20727Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average medical physician assistant in 2024
204 Medicare Part D claims for 132 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Hyclate40 claims
- Triamcinolone Acetonide28 claims
- Clobetasol Propionate21 claims
- Mupirocin17 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): 98.3 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: $2,872.54
75 payments; by number, the most common kind was food and beverage; the largest payer was Strata Skin Sciences, Inc. The 16,165 providers of this specialty with any payment received $1,055.00 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
- Golden State Dermatology Associates, Inc.Torrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
Other medical physician assistant records in California
- Bridget Abajian, PA-CLos Angeles, CA1518677061
- Crispin Abbott, PHYSICIAN ASSISTANTThousand Oaks, CA1063467926
- Abdol Hamid Abdali Hajiabadi, P.A.Santa Ana, CA1285747964
- Jilbert Abnoosian, PALynwood, CA1447300314
- Reema Aboelrish, PA-CFresno, CA1376466144
- Sakina Abowath, P.A.Diamond Bar, CA1326287525
- Selin Abraamyan, PA-CGlendale, CA1144795899
- Antonious Abraham, PA-CCovina, CA1003434275
- Michelle AbrahamSacramento, CA1952875957
- Therese Abraham, P.A.-CGlendale, CA1063726586
Common questions
What is Jeffrey Joon-Bum So, MS, PA-C's NPI number?
Jeffrey Joon-Bum So, MS, PA-C's National Provider Identifier (NPI) is 1659600799, issued on Dec 21, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Joon-Bum So, MS, PA-C located?
The NPPES record lists a practice address at 421 N Rodeo Dr, Beverly Hills, CA, 90210. Phone: (310) 274-5372. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Joon-Bum So, MS, PA-C's license?
NPPES lists California license number PA20727, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Jeffrey Joon-Bum So, MS, PA-C prescribe under Medicare Part D?
In 2024, Jeffrey Joon-Bum So, MS, PA-C had 204 Medicare Part D claims for 132 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Jeffrey Joon-Bum So, MS, PA-C's MIPS final score?
The 2023 MIPS final score is 98.3 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.