Jonathan So, M.D.
Emergency Medicine Physician · Philadelphia, PA
Jonathan So, M.D. is an emergency medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1417261959, issued on Jul 26, 2010. Check the license (Pennsylvania MT197660, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Jonathan So
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- MT197660 PA
Self-reported in NPPES; status is on the state search - Practice location
- 111 S 11TH St, Philadelphia, PA 19107
- Phone
- (215) 955-9837
- Enumerated
- Jul 26, 2010
- Record last updated
- Jul 26, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,911 in Pennsylvania → Look up another NPI →
Also registered at 111 S 11TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- David AdamskiAnesthesiology Physician1134242001
- Bronia AgressEmergency Medicine Physician1922591767
- Kristin Ahern, AGACNPAcute Care Nurse Practitioner1922406941
Verify Jonathan So in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MT197660Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average emergency medicine physician in 2024
159 Medicare Part D claims for 77 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 33 claims were for opioids.
Most prescribed
- Tramadol Hcl22 claims
- Prednisone21 claims
- Cephalexin12 claims
- Sulfamethoxazole-Trimethoprim12 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.
Jonathan So among 3,911 emergency medicine physician records in Pennsylvania
Jonathan So, M.D. is one of 3,911 emergency medicine physician records with a practice address in Pennsylvania. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 46% of them.
- NPI issued2010 · 46% of these records are older, 51% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2010 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,006 emergency medicine physician records list a practice address in Philadelphia
They are 1,006 of the 42,849 NPPES records with a practice address in Philadelphia, and 3,911 emergency medicine physician records in Pennsylvania.
All 3,911 in Pennsylvania → Every provider in Philadelphia → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Laurence Anderson, DOPhiladelphia, PA 191071235181892
- Andrew Aronson, MDPhiladelphia, PA 191071720080302
- Roger Band, MDPhiladelphia, PA 191071760439723
- Kevin Baumlin, MDPhiladelphia, PA 191071659349603
- David Gaieski, MDPhiladelphia, PA 191071952341976
- Judd Hollander, MDPhiladelphia, PA 191071427098425
- Joel Kravitz, MDPhiladelphia, PA 191071548237589
- Bon Ku, MDPhiladelphia, PA 191071508812835
Common questions
What is Jonathan So, M.D.'s NPI number?
Jonathan So, M.D.'s National Provider Identifier (NPI) is 1417261959, issued on Jul 26, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan So, M.D. located?
The NPPES record lists a practice address at 111 S 11TH St, Philadelphia, PA, 19107. Phone: (215) 955-9837. Providers update this record themselves, so call before visiting.
How can I verify Jonathan So, M.D.'s license?
NPPES lists Pennsylvania license number MT197660, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jonathan So, M.D. prescribe under Medicare Part D?
In 2024, Jonathan So, M.D. had 159 Medicare Part D claims for 77 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
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.