Doctor profile · Federal record

Dr. Thomas Poswilko, OD

Optometrist (CMS: Optometry) · Rockford, IL

  • NPI 1134271190
  • Accepts Medicare
  • 47 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4010 E State St
Rockford, IL 611082046
(815) 397-5940
fax (815) 397-5929
Mailing address
2020 Eastlake Drive
Ottawa, IL 61350

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
February 3, 2008
Year of graduation
1979 — 47 yrs since
Specialty taxonomy
152W00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134271190. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
12
Distinct HCPCS
1
Medicare allowed
$1,043
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 12 12 $87

In context: peer comparison

Among 12 peers in Rockford Optometrist, average services per provider: 126. This provider delivers 0.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$21
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Bausch & Lomb Americas INC. 1 $20.74

By nature of payment

Food and Beverage
$21

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Poswilko's medical specialty?
Dr. Thomas Poswilko practices Optometrist in Rockford, IL.
Where does Dr. Thomas Poswilko practice?
Dr. Thomas Poswilko practices at 4010 E State St, Rockford, IL 611082046. Office phone: 8153975940.
What is Dr. Thomas Poswilko's NPI?
Dr. Thomas Poswilko's National Provider Identifier (NPI) is 1134271190, issued by NPPES.
Does Dr. Thomas Poswilko accept Medicare assignment?
Yes. Dr. Thomas Poswilko accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Poswilko commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.