Doctor profile · Federal record

Dr. Nathaniel Harkins, O.D.

Optometrist (CMS: Optometry) · Madison, WI

  • NPI 1396032819
  • Accepts Medicare
  • 15 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1025 Regent St
Madison, WI 537151248
(608) 282-2000
fax (608) 282-2172

Credentials & registration

NPPES · NUCC
NPI registered
July 2011 — 15 yrs on file
Profile last updated
November 18, 2020
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
Wisconsin #3233-035
Medicaid
WI #1396032819

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396032819. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
7,445
Distinct HCPCS
10
Medicare allowed
$152,536
HCPCS Description Services Patients Avg allowed
66984 Removal of cataract with insertion of prosthetic lens 4,767 36 $1
66821 Removal of recurring cataract in lens capsule using a laser 990 11 $1
92014 Established patient complete exam of visual system 597 597 $122
92134 Imaging of retina 294 227 $39
99213 Established patient office or other outpatient visit, 20-29 minutes 218 178 $86
92133 Imaging of optic nerve 181 181 $33
92083 Exam of visual field with extended testing 177 165 $60
99214 Established patient office or other outpatient visit, 30-39 minutes 124 113 $122
92004 New patient complete exam of visual system 48 48 $145
99203 New patient office or other outpatient visit, 30-44 minutes 35 35 $106

In context: peer comparison

Among 23 peers in Madison Optometrist, average services per provider: 181. This provider delivers 41× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
388
Patients
77
Total drug cost
$21,245
Drug Type Claims Patients Total cost
Latanoprost Generic 135 37 $2,228
Timolol Maleate Generic 41 14 $538
Dorzolamide Hcl Generic 40 13 $1,032
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 40 0 $603
Ketorolac Tromethamine Generic 31 0 $690
Lumigan (Bimatoprost) Brand 29 0 $9,728
Travoprost Generic 27 0 $3,690
Brimonidine Tartrate Generic 21 0 $1,615
Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) Brand 13 13 $233
Fluorometholone Generic 11 0 $887

Frequently asked questions

Auto-generated from federal data
What is Dr. Nathaniel Harkins's medical specialty?
Dr. Nathaniel Harkins practices Optometrist in Madison, WI.
Where does Dr. Nathaniel Harkins practice?
Dr. Nathaniel Harkins practices at 1025 Regent St, Madison, WI 537151248. Office phone: 6082822000.
What is Dr. Nathaniel Harkins's NPI?
Dr. Nathaniel Harkins's National Provider Identifier (NPI) is 1396032819, issued by NPPES.
Does Dr. Nathaniel Harkins accept Medicare assignment?
Yes. Dr. Nathaniel Harkins accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathaniel Harkins commonly perform?
Top Medicare-reported procedures in 2023: Removal of cataract with insertion of prosthetic lens (HCPCS 66984); Removal of recurring cataract in lens capsule using a laser (HCPCS 66821); Established patient complete exam of visual system (HCPCS 92014). Source: CMS Medicare Physician & Other Practitioners file.