Doctor profile · Federal record

Dr. Jason So, DO

Family Medicine Physician (CMS: Family Practice) · Family Medicine Physician · Lake Geneva, WI

  • NPI 1508078643
  • Accepts Medicare
  • 21 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
350 Peller RD
Lake Geneva, WI 531474543
(262) 245-0221
fax (262) 249-0633

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
August 29, 2019
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State licenses (2)
Wisconsin #63015-21 · Illinois #036119919
Medicaid
WI #1508078643

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1508078643. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,128
Distinct HCPCS
10
Medicare allowed
$335,504
HCPCS Description Services Patients Avg allowed
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 1,122 217 $57
99497 Advance care planning, first 30 minutes 515 165 $86
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 351 136 $133
G0179 Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a 340 168 $43
99487 Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month 310 132 $127
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 296 153 $46
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 240 176 $54
99213 Established patient office or other outpatient visit, 20-29 minutes 229 114 $60
99350 Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 194 91 $194
99214 Established patient office or other outpatient visit, 30-39 minutes 173 104 $91

In context: peer comparison

Among 5 peers in this city , average services per provider: 148. This provider delivers 28× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,426
Patients
1,045
Total drug cost
$46,478
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 515 156 $5,359
Lisinopril Generic 421 125 $3,168
Omeprazole Generic 289 87 $5,378
Amlodipine Besylate Generic 284 94 $2,020
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 248 60 $9,435
Levothyroxine Sodium Generic 240 79 $3,988
Furosemide Generic 186 55 $1,118
Metformin Hcl Generic 181 55 $1,231
Metoprolol Tartrate Generic 179 49 $1,547
Hydrochlorothiazide Generic 173 55 $755

Frequently asked questions

Auto-generated from federal data
What is Dr. Jason So's medical specialty?
Dr. Jason So practices Family Medicine Physician in Lake Geneva, WI.
Where does Dr. Jason So practice?
Dr. Jason So practices at 350 Peller RD, Lake Geneva, WI 531474543. Office phone: 2622450221.
What is Dr. Jason So's NPI?
Dr. Jason So's National Provider Identifier (NPI) is 1508078643, issued by NPPES.
Does Dr. Jason So accept Medicare assignment?
Yes. Dr. Jason So accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jason So commonly perform?
Top Medicare-reported procedures in 2023: Chronic care management services (HCPCS 99490); Advance care planning (HCPCS 99497); Residence visit for established patient with moderate level of medical decision making (HCPCS 99349). Source: CMS Medicare Physician & Other Practitioners file.