Nathaniel Sears
NPI 1306103577 · Ophthalmology Physician · Portsmouth, NH
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathaniel Sears is a Ophthalmology Physician provider in Portsmouth, NH (NPI 1306103577).
Provider details
- NPI number
- 1306103577
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD-44380 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,196 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 374 | $89 |
| Imaging of Optic Nerve92133 | 237 | $35 |
| Exam of Visual Field With Extended Testing92083 | 233 | $25 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 188 | $127 |
| Imaging of Optic Nerve92133 | 161 | $20 |
| Exam of the Internal Drainage System of Eye92020 | 149 | $27 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 605 | 203 |
| Brimonidine Tartrate | 361 | 124 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 334 | 106 |
| Timolol Maleate | 294 | 129 |
| Prednisolone Acetate | 107 | 71 |
| Dorzolamide Hcl | 67 | 26 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 60 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$105 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 200 Hawkins DrIowa City, IA 52242-1009Phone: (319) 356-4674
Registry dates
- Enumerated
- 2012-04-12
- Last updated
- 2024-10-17
- Certified
- 2024-10-17
Frequently asked questions
- What is Nathaniel Sears's NPI number?
- Nathaniel Sears's National Provider Identifier (NPI) is 1306103577, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathaniel Sears's specialty?
- Nathaniel Sears is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Nathaniel Sears located?
- Nathaniel Sears's practice location on file with NPPES is 155 Borthwick Ave Ste 200e, Portsmouth, NH 03801-4184.
- What is Nathaniel Sears's phone number?
- The practice phone number listed in the NPPES registry for Nathaniel Sears is (603) 436-1773.
- Does Nathaniel Sears accept Medicare?
- Nathaniel Sears is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathaniel Sears's NPI active?
- Yes — Nathaniel Sears's NPI (1306103577) is active in the NPPES registry as of the last update on 2024-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.