Doctor profile · Federal record

Dr. Greg Lietz, PA

Physician Assistant · Hartford, WI

  • NPI 1548345762
  • Accepts Medicare
  • 20 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1640 E Sumner St
Hartford, WI 530272684
(262) 670-4000
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
November 13, 2023
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Wisconsin #2066
Medicaid
WI #42895300

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548345762. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
56
Distinct HCPCS
2
Medicare allowed
$2,201
HCPCS Description Services Patients Avg allowed
20610 Aspiration and/or injection of fluid from large joint 33 23 $62
J1030 Injection, methylprednisolone acetate, 40 mg 23 16 $7

In context: peer comparison

Among 6 peers in Hartford Physician Assistant, average services per provider: 56. This provider delivers 1.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
288
Patients
264
Total drug cost
$2,291
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 108 100 $751
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 63 56 $738
Gabapentin Generic 48 46 $361
Tizanidine Hcl Generic 35 33 $237
Tramadol Hcl Generic 22 18 $84
Cyclobenzaprine Hcl Generic 12 11 $120

Frequently asked questions

Auto-generated from federal data
What is Dr. Greg Lietz's medical specialty?
Dr. Greg Lietz practices Physician Assistant in Hartford, WI.
Where does Dr. Greg Lietz practice?
Dr. Greg Lietz practices at 1640 E Sumner St, Hartford, WI 530272684. Office phone: 2626704000.
What is Dr. Greg Lietz's NPI?
Dr. Greg Lietz's National Provider Identifier (NPI) is 1548345762, issued by NPPES.
Does Dr. Greg Lietz accept Medicare assignment?
Yes. Dr. Greg Lietz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Greg Lietz commonly perform?
Top Medicare-reported procedures in 2023: Aspiration and/or injection of fluid from large joint (HCPCS 20610); Injection, methylprednisolone acetate, 40 mg (HCPCS J1030). Source: CMS Medicare Physician & Other Practitioners file.