Doctor profile · Federal record

Dr. Gregory Huhn, M.D.

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

  • NPI 1366552952
  • Accepts Medicare
  • MIPS 78.2 / 100 · 2023
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2020 W Harrison St
Chicago, IL 606123741
(312) 572-4575
fax (312) 572-4502

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
April 26, 2021
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207RI0200X — NUCC code
State license (1)
Illinois #036-108799

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366552952. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
54
Distinct HCPCS
1
Medicare allowed
$5,635
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 54 31 $104

In context: peer comparison

Among 57 peers in Chicago Infectious Disease Physician, average services per provider: 229. This provider delivers 0.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$458
Transactions
6
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
ViiV Healthcare Company 3 $364.14
Gilead Sciences, INC. 2 $79.05
Valneva USA, INC. 1 $14.37

By nature of payment

Food and Beverage
$458

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
791
Patients
70
Total drug cost
$1,637,060
Drug Type Claims Patients Total cost
Biktarvy (Bictegrav/Emtricit/Tenofov Ala) Brand 159 24 $648,455
Descovy (Emtricitabine/Tenofov Alafenam) Brand 82 0 $195,729
Atorvastatin Calcium Generic 78 18 $1,100
Tivicay (Dolutegravir Sodium) Brand 65 0 $151,383
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 55 11 $1,896
Prezcobix (Darunavir/Cobicistat) Brand 51 0 $134,270
Enalapril Maleate Generic 46 0 $904
Cabenuva (Cabotegravir/Rilpivirine) Brand 43 17 $308,634
Gabapentin Generic 40 0 $517
Dovato (Dolutegravir Sodium/Lamivudine) Brand 36 0 $108,715

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Huhn's medical specialty?
Dr. Gregory Huhn practices Infectious Disease Physician in Chicago, IL.
Where does Dr. Gregory Huhn practice?
Dr. Gregory Huhn practices at 2020 W Harrison St, Chicago, IL 606123741. Office phone: 3125724575.
What is Dr. Gregory Huhn's NPI?
Dr. Gregory Huhn's National Provider Identifier (NPI) is 1366552952, issued by NPPES.
Does Dr. Gregory Huhn accept Medicare assignment?
Yes. Dr. Gregory Huhn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Huhn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.