Doctor profile · Federal record

Dr. Joel Wilsnack, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Chicago, IL

  • NPI 1427083062
  • Accepts Medicare
  • MIPS 91.3 / 100 · 2023
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
20 S Clark St, Suite 1100
Chicago, IL 606031802
(312) 926-7443

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207R00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1427083062. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
665
Distinct HCPCS
10
Medicare allowed
$66,845
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 190 124 $134
99215 Established patient office or other outpatient visit, 40-54 minutes 146 140 $190
36415 Insertion of needle into vein for collection of blood sample 144 117 $8
G0008 Administration of influenza virus vaccine 36 36 $32
90662 Influenza vaccine split virus, preservative free 34 34 $72
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 20 19 $16
0124A Adm sarscv2 bvl 30mcg/.3ml a 16 16 $43
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 15 15 $282
91312 Sarscov2 vac bvl 30mcg/0.3ml 15 15 $0
G0009 Administration of pneumococcal vaccine 15 15 $32

In context: peer comparison

Among 487 peers in Chicago Internal Medicine Physician, average services per provider: 168. This provider delivers 4.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$62
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Exact Sciences Corporation 2 $61.55

By nature of payment

Food and Beverage
$62

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,739
Patients
488
Total drug cost
$62,928
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 448 132 $7,995
Levothyroxine Sodium Generic 177 36 $2,344
Amlodipine Besylate Generic 151 45 $1,441
Lisinopril Generic 132 37 $1,274
Hydrochlorothiazide Generic 126 32 $860
Rosuvastatin Calcium Generic 116 39 $3,308
Simvastatin Generic 104 30 $1,108
Losartan Potassium Generic 98 32 $1,281
Metoprolol Succinate Generic 68 21 $2,035
Losartan-Hydrochlorothiazide (Losartan/Hydrochlorothiazide) Brand 63 16 $1,935

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Joel Wilsnack's medical specialty?
Dr. Joel Wilsnack practices Internal Medicine Physician in Chicago, IL.
Where does Dr. Joel Wilsnack practice?
Dr. Joel Wilsnack practices at 20 S Clark St, Chicago, IL 606031802. Office phone: 3129267443.
What is Dr. Joel Wilsnack's NPI?
Dr. Joel Wilsnack's National Provider Identifier (NPI) is 1427083062, issued by NPPES.
Does Dr. Joel Wilsnack accept Medicare assignment?
Yes. Dr. Joel Wilsnack accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joel Wilsnack commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.