Jason S. So, DO
Family Medicine Physician · Lake Geneva, WI
Jason S. So, DO is a family medicine physician with a practice address in Lake Geneva, Wisconsin, and NPI 1508078643, issued on May 3, 2007. Check the license (Wisconsin 63015-21, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jason S. So
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 63015-21 WI
036119919 IL
Self-reported in NPPES; status is on the state search - Practice location
- 350 Peller RD, Lake Geneva, WI 53147
- Phone
- (262) 245-0221
- Enumerated
- May 3, 2007
- Record last updated
- Aug 29, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (262) 249-0633
- Medicaid ID
- 1508078643 WI
- Medicare enrollment
- Enrolled (PECOS I20141011000178); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 350 Peller RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Norbert Debiase, MDFamily Medicine Physician1497959779
- Seon Yeop Jeong, MDStudent in an Organized Health Care Education/Training Program1861332561
- Gary Myron, M.D.Family Medicine Physician1386773174
- Dessislava Papantoniou, MDFamily Medicine Physician1821880436
- Jaime Quezada, MDFamily Medicine Physician1356432660
- Gabrielle Saden, MDFamily Medicine Physician1598555468
Verify Jason S. So in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 63015-21Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average family medicine physician in 2024
10,670 Medicare Part D claims for 647 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 336 claims were for opioids.
Most prescribed
- Atorvastatin Calcium724 claims
- Lisinopril551 claims
- Amlodipine Besylate399 claims
- Omeprazole387 claims
- Levothyroxine Sodium321 claims
- Metformin Hcl275 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.
Bills Medicare through one group practice
- Mercy Health System CorporationBeloit, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jason S. So among 3,765 family medicine physician records in Wisconsin
Jason S. So, DO is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% 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 54% of them.
- NPI issued2007 · 54% of these records are older, 41% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2005 · median 2007 among the 2,347 with a school on file
- Record last updated2019 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 family medicine physician records list a practice address in Lake Geneva
They are 23 of the 366 NPPES records with a practice address in Lake Geneva, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Lake Geneva → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Austin Bacchus, M.D.Lake Geneva, WI 531471225258171
- Justine Benin, D.O.Lake Geneva, WI 531471942541362
- Norbert Debiase, MDLake Geneva, WI 531471497959779
- Greg Gerber, MDLake Geneva, WI 531471831204916
- Volha Haliantava, M.D.Lake Geneva, WI 531471598008351
- Britton Kolar, MDLake Geneva, WI 531471114076486
- Andrew MeyerLake Geneva, WI 531471801069091
- Andrew Morton, MDLake Geneva, WI 531471619242005
Common questions
What is Jason S. So, DO's NPI number?
Jason S. So, DO's National Provider Identifier (NPI) is 1508078643, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jason S. So, DO located?
The NPPES record lists a practice address at 350 Peller RD, Lake Geneva, WI, 53147. Phone: (262) 245-0221. Providers update this record themselves, so call before visiting.
How can I verify Jason S. So, DO's license?
NPPES lists Wisconsin license number 63015-21, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jason S. So, DO prescribe under Medicare Part D?
In 2024, Jason S. So, DO had 10,670 Medicare Part D claims for 647 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.