Doctor profile · Federal record

Dr. GREG BUTTERWORTH, O. D.

Optometrist (CMS: OPTOMETRY) · HAVRE DE GRACE, MD

  • NPI 1336116979
  • Accepts Medicare
  • MIPS 86.1 / 100 · 2023
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
920 REVOLUTION ST
HAVRE DE GRACE, MD 210783748
(410) 939-2200
fax (410) 939-5980
Mailing address
1950 OLD GALLOWS RD 520
VIENNA, VA 221823970

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
November 2, 2021
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
Maryland #TA1619

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336116979. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
983
Distinct HCPCS
10
Medicare allowed
$85,380
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 310 251 $95
99203 New patient office or other outpatient visit, 30-44 minutes 119 119 $118
92012 Established patient problem focused exam of visual system 92 78 $93
92083 Exam of visual field with extended testing 73 58 $67
83861 Microfluid analysis of tears 72 24 $22
92014 Established patient complete exam of visual system 62 62 $134
92133 Imaging of optic nerve 55 48 $36
92134 Imaging of retina 45 38 $42
99214 Established patient office or other outpatient visit, 30-39 minutes 34 34 $135
92004 New patient complete exam of visual system 31 31 $158

In context: peer comparison

Among 7 peers in this city , average services per provider: 127. This provider delivers 7.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$584
Transactions
20
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Sight Sciences, Inc. 1 $141.41
Tarsus Pharmaceuticals, Inc. 4 $110.26
Bausch & Lomb Americas Inc. 4 $86.48
Harrow Eye, LLC 3 $67.92
Oyster Point Pharma, Inc. 3 $66.34
Alcon Vision LLC 2 $42.96
Dompe US, Inc. 1 $31.28
Rayner Intraocular Lenses Limited 1 $20.95
SUN PHARMACEUTICAL INDUSTRIES INC. 1 $16.41

By nature of payment

Food and Beverage
$584

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
95
Patients
14
Total drug cost
$26,368
Drug Type Claims Patients Total cost
Latanoprost Generic 21 0 $401
Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) Brand 15 14 $208
Loteprednol Etabonate Generic 13 0 $2,142
Prednisolone Acetate Generic 12 0 $721
Vyzulta (Latanoprostene Bunod) Brand 12 0 $4,665
Brimonidine Tartrate Generic 11 0 $121
Xiidra (Lifitegrast) Brand 11 0 $18,110