Doctor profile · Federal record

Dr. Thomas Mahaffey, OD

Optometrist (CMS: Optometry) · Bloomington, IL

  • NPI 1669401139
  • Accepts Medicare
  • MIPS 89.5 / 100 · 2023
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1107 Airport RD
Bloomington, IL 617042544
(309) 662-3937

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
January 17, 2020
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
Illinois #046008812
Medicaid
IL #046008812

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669401139. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
515
Distinct HCPCS
7
Medicare allowed
$48,670
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 208 202 $125
99213 Established patient office or other outpatient visit, 20-29 minutes 85 53 $88
92250 Photography of the retina 76 65 $35
92134 Imaging of retina 60 57 $38
92014 Established patient complete exam of visual system 46 42 $114
99204 New patient office or other outpatient visit, 45-59 minutes 26 26 $164
92083 Exam of visual field with extended testing 14 14 $54

In context: peer comparison

Among 2 peers in this city , average services per provider: 435. This provider delivers 1.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$442
Transactions
21
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
Bausch & Lomb Americas Inc. 7 $150.20
Harrow Eye, LLC 4 $80.32
Mallinckrodt Hospital Products Inc. 3 $71.66
Dompe US, Inc. 1 $22.58
Regeneron Healthcare Solutions, Inc. 1 $21.91
SUN PHARMACEUTICAL INDUSTRIES INC. 1 $21.72
Glaukos Corporation 1 $20.07
ABBVIE INC. 1 $19.18
Oyster Point Pharma, Inc. 1 $18.92
Tarsus Pharmaceuticals, Inc. 1 $15.70

By nature of payment

Food and Beverage
$442

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
132
Patients
79
Total drug cost
$2,786
Drug Type Claims Patients Total cost
Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) Brand 70 52 $875
Latanoprost Generic 45 13 $1,385
Prednisolone Acetate Generic 17 14 $527

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Mahaffey's medical specialty?
Dr. Thomas Mahaffey practices Optometrist in Bloomington, IL.
Where does Dr. Thomas Mahaffey practice?
Dr. Thomas Mahaffey practices at 1107 Airport RD, Bloomington, IL 617042544. Office phone: 3096623937.
What is Dr. Thomas Mahaffey's NPI?
Dr. Thomas Mahaffey's National Provider Identifier (NPI) is 1669401139, issued by NPPES.
Does Dr. Thomas Mahaffey accept Medicare assignment?
Yes. Dr. Thomas Mahaffey accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Mahaffey commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Photography of the retina (HCPCS 92250). Source: CMS Medicare Physician & Other Practitioners file.