Doctor profile · Federal record

Dr. Peter Weeks, MD

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

  • NPI 1174584130
  • Accepts Medicare
  • 42 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
120 Spalding Dr Ste 309
Naperville, IL 605406521
(630) 432-6890
Mailing address
Po Box 713260
Chicago, IL 606771260

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
August 29, 2023
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
207V00000X — NUCC code
State license (1)
Illinois #036072808
Medicaid
IL #036072808

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1174584130. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
72
Distinct HCPCS
2
Medicare allowed
$4,397
HCPCS Description Services Patients Avg allowed
G0101 Cervical or vaginal cancer screening; pelvic and clinical breast examination 45 45 $41
99213 Established patient office or other outpatient visit, 20-29 minutes 27 23 $94

In context: peer comparison

Among 10 peers in Naperville Obstetrics & Gynecology Physician, average services per provider: 29. This provider delivers 2.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$66
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Astellas Pharma US INC 1 $23.97
Pfizer INC. 1 $23.60
CooperSurgical, INC. 1 $18.00

By nature of payment

Food and Beverage
$66

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
87
Patients
21
Total drug cost
$7,003
Drug Type Claims Patients Total cost
Estradiol Generic 51 21 $5,819
Medroxyprogesterone Acetate Generic 21 0 $559
Clobetasol Propionate Generic 15 0 $625

Frequently asked questions

Auto-generated from federal data
What is Dr. Peter Weeks's medical specialty?
Dr. Peter Weeks practices Obstetrics & Gynecology Physician in Naperville, IL.
Where does Dr. Peter Weeks practice?
Dr. Peter Weeks practices at 120 Spalding Dr Ste 309, Naperville, IL 605406521. Office phone: 6304326890.
What is Dr. Peter Weeks's NPI?
Dr. Peter Weeks's National Provider Identifier (NPI) is 1174584130, issued by NPPES.
Does Dr. Peter Weeks accept Medicare assignment?
Yes. Dr. Peter Weeks accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Peter Weeks commonly perform?
Top Medicare-reported procedures in 2023: 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.