Doctor profile · Federal record

Dr. Jon Niewolny, PA-C

Physician Assistant · Sheboygan, WI

  • NPI 1700993151
  • Accepts Medicare
  • 21 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3400 Union Ave
Sheboygan, WI 530818426
(920) 828-2530
Additional location
2414 Kohler Memorial Dr
Sheboygan, WI 53081
(920) 457-4461
fax (920) 459-1460
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
August 5, 2024
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Wisconsin #1899-23
Medicaid
WI #42876000

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1700993151. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,393
Distinct HCPCS
8
Medicare allowed
$32,537
HCPCS Description Services Patients Avg allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 1,028 77 $1
99214 Established patient office or other outpatient visit, 30-39 minutes 107 76 $104
20610 Aspiration and/or injection of fluid from large joint 100 71 $59
99202 New patient office or other outpatient visit, 15-29 minutes 51 51 $59
99212 Established patient office or other outpatient visit, 10-19 minutes 36 35 $46
27447 Replacement of knee joint, both sides of knee 27 26 $171
27130 Replacement of thigh bone and hip joint with prosthesis 22 22 $161
99213 Established patient office or other outpatient visit, 20-29 minutes 22 22 $74

In context: peer comparison

Among 16 peers in Sheboygan Physician Assistant, average services per provider: 87. This provider delivers 16× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
43
Patients
36
Total drug cost
$253
Drug Type Claims Patients Total cost
Tramadol Hcl Generic 22 17 $60
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 21 19 $193

Frequently asked questions

Auto-generated from federal data
What is Dr. Jon Niewolny's medical specialty?
Dr. Jon Niewolny practices Physician Assistant in Sheboygan, WI.
Where does Dr. Jon Niewolny practice?
Dr. Jon Niewolny practices at 3400 Union Ave, Sheboygan, WI 530818426. Office phone: 9208282530.
What is Dr. Jon Niewolny's NPI?
Dr. Jon Niewolny's National Provider Identifier (NPI) is 1700993151, issued by NPPES.
Does Dr. Jon Niewolny accept Medicare assignment?
Yes. Dr. Jon Niewolny accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jon Niewolny commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); Established patient office or other outpatient visit (HCPCS 99214); Aspiration and/or injection of fluid from large joint (HCPCS 20610). Source: CMS Medicare Physician & Other Practitioners file.