Doctor profile · Federal record

Dr. Thomas Kazmierczak, DO

Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Morris, IL

  • NPI 1225033871
  • Accepts Medicare
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
936 W US Route 6
Morris, IL 604508858
(815) 942-0525
fax (815) 942-3501
Mailing address
Po Box 713260
Chicago, IL 606771260

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
August 9, 2023
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207V00000X — NUCC code
State license (1)
Illinois #036107879
Medicaid
IL #036107897

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1225033871. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
40
Distinct HCPCS
3
Medicare allowed
$2,091
HCPCS Description Services Patients Avg allowed
Q0091 Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory 15 15 $40
G0101 Cervical or vaginal cancer screening; pelvic and clinical breast examination 14 14 $38
99213 Established patient office or other outpatient visit, 20-29 minutes 11 11 $87

In context: peer comparison

Among 6 peers in Morris Obstetrics & Gynecology Physician, average services per provider: 24. This provider delivers 1.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
30
Patients
0
Total drug cost
$881
Drug Type Claims Patients Total cost
Estradiol Generic 15 0 $633
Levothyroxine Sodium Generic 15 0 $248

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Kazmierczak's medical specialty?
Dr. Thomas Kazmierczak practices Obstetrics & Gynecology Physician in Morris, IL.
Where does Dr. Thomas Kazmierczak practice?
Dr. Thomas Kazmierczak practices at 936 W US Route 6, Morris, IL 604508858. Office phone: 8159420525.
What is Dr. Thomas Kazmierczak's NPI?
Dr. Thomas Kazmierczak's National Provider Identifier (NPI) is 1225033871, issued by NPPES.
Does Dr. Thomas Kazmierczak accept Medicare assignment?
Yes. Dr. Thomas Kazmierczak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Kazmierczak commonly perform?
Top Medicare-reported procedures in 2023: Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (HCPCS Q0091); Cervical or vaginal cancer screening; pelvic and clinical breast examination (HCPCS G0101); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.