Nathaniel C. Sears
Ophthalmology Physician · Portsmouth, NH
Nathaniel C. Sears is an ophthalmology physician with a practice address in Portsmouth, New Hampshire, and NPI 1306103577, issued on Apr 12, 2012. Check the license (New Hampshire 24997, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Nathaniel C. Sears
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 24997 NH
MD-44380 IA
Self-reported in NPPES; status is on the state search - Practice location
- 155 Borthwick Ave Ste 200E, Portsmouth, NH 03801
- Phone
- (603) 436-1773
- Enumerated
- Apr 12, 2012
- Record last updated
- Oct 17, 2024
- Fax
- (603) 427-0655
- Medicare enrollment
- Enrolled (PECOS I20240418001213); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2012
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 99 in New Hampshire → Look up another NPI →
Also registered at 155 Borthwick Ave Ste 200E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dwight Arvidson, O.D.Optometrist1528125283
- Kinley Beck, M.D.Retina Specialist (Ophthalmology) Physician1770840365
- Tia Conover, ODOptometrist1548093552
- Hilary Hamer, ODOptometrist1841720109
- Jennifer Ling, M.D.Ophthalmology Physician1366860025
- Renee Lynch, ODOptometrist1083066005
Verify Nathaniel C. Sears in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 24997Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% more Medicare Part D claims than the average ophthalmology physician in 2024
2,313 Medicare Part D claims for 527 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Latanoprost605 claims
- Brimonidine Tartrate361 claims
- Dorzolamide-Timolol334 claims
- Timolol Maleate294 claims
- Prednisolone Acetate107 claims
- Dorzolamide Hcl67 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $104.88
5 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Eyesight Ophthalmic Services PLLCPortsmouth, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathaniel C. Sears among 99 ophthalmology physician records in New Hampshire
Nathaniel C. Sears is one of 99 ophthalmology physician records with a practice address in New Hampshire. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 80% of them.
- NPI issued2012 · 80% of these records are older, 18% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2012 · median 2004 among the 65 with a school on file
- Record last updated2024 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in New Hampshire
There are 99 ophthalmology physician records in New Hampshire.
All 99 in New Hampshire → Every provider in Portsmouth → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Claudia Bartolini, MDPortsmouth, NH 038011497071096
- Warren Goldblatt, M.D.Portsmouth, NH 038011689677742
- Marsha Kavanagh, MDPortsmouth, NH 038011467403659
- Richard Lasonde, MDPortsmouth, NH 038011295701985
- Jennifer Ling, M.D.Portsmouth, NH 038011366860025
- Newton Peters, M.D.Portsmouth, NH 038011407859556
- Timothy Sullivan, MDPortsmouth, NH 038011538486717
- Jason Szelog, MDPortsmouth, NH 038011366936882
Common questions
What is Nathaniel C. Sears's NPI number?
Nathaniel C. Sears's National Provider Identifier (NPI) is 1306103577, issued on Apr 12, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel C. Sears located?
The NPPES record lists a practice address at 155 Borthwick Ave Ste 200E, Portsmouth, NH, 03801. Phone: (603) 436-1773. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel C. Sears's license?
NPPES lists New Hampshire license number 24997, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nathaniel C. Sears prescribe under Medicare Part D?
In 2024, Nathaniel C. Sears had 2,313 Medicare Part D claims for 527 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.