Nathaniel Harkins, O.D.
NPI 1396032819 · Optometrist · Madison, WI
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathaniel Harkins, O.D. is a Optometrist provider in Madison, WI (NPI 1396032819).
Provider details
- NPI number
- 1396032819
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 3233-035 (WI)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,213 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 3,600 | $1 |
| Established Patient Complete Exam of Visual System92014 | 483 | $120 |
| Imaging of Retina92134 | 290 | $38 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 228 | $85 |
| Imaging of Optic Nerve92133 | 175 | $32 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 162 | $121 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 133 | 38 |
| Dorzolamide Hcl | 47 | 13 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 39 | 12 |
| Timolol Maleate | 39 | 13 |
| Travoprost | 23 | — |
| Ketorolac Tromethamine | 17 | — |
| Brimonidine Tartrate | 16 | — |
| Bimatoprostbrand: Lumigan |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-07-05
- Last updated
- 2020-11-18
- Certified
- 2020-11-18
Frequently asked questions
- What is Nathaniel Harkins's NPI number?
- Nathaniel Harkins's National Provider Identifier (NPI) is 1396032819, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathaniel Harkins's specialty?
- Nathaniel Harkins is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Nathaniel Harkins located?
- Nathaniel Harkins's practice location on file with NPPES is 1025 Regent St, Madison, WI 53715-1248.
- What is Nathaniel Harkins's phone number?
- The practice phone number listed in the NPPES registry for Nathaniel Harkins is (608) 282-2000.
- Does Nathaniel Harkins accept Medicare?
- Nathaniel Harkins is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathaniel Harkins's NPI active?
- Yes — Nathaniel Harkins's NPI (1396032819) is active in the NPPES registry as of the last update on 2020-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.