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Edit this profileWhere to find Nathaniel C. Sears, MD
- Portsmouth location main office
155 Borthwick Ave Ste 200E, Portsmouth, NH 03801 - Iowa City location
200 Hawkins Dr, Iowa City, IA 52242
About Dr. Sears
Nathaniel C. Sears, MD practices ophthalmology in Portsmouth, NH. Nathaniel is a 2012 graduate of Clvlnd Clinic Lerner College of Med of Case Wstn RSV University. Nathaniel is also listed as specializing in ophthalmology — glaucoma and specialist. Medicare claims data shows Nathaniel provided 2,196 services to 1,940 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, imaging of optic nerve, and exam of visual field with extended testing. The provider's National Provider Identifier (NPI) is 1306103577.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (603) 436-1773
- Email not available
Practice Locations
155 BORTHWICK AVE STE 200E
Portsmouth, NH 03801
200 Hawkins Dr
Iowa City, IA 52242
Conditions Commonly Evaluated or Treated
Within Ophthalmology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
Eye injuries
Inflammation, neurologic, and orbit
Retina & vitreous
Procedures & services
Most searched procedures
Examination and imaging
Cataract and lens
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Eyelid, tear duct, and muscle
Glaucoma
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
Procedures Most Often Billed to Medicare
2,196 services · 1,940 patients · 23 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
84 | As often as other peers in Ophthalmology |
| Insertion of drug delivery implant into tear duct of eye | Procedure | 68841 |
46 | Less often than most peers in Ophthalmology |
| Creation of eye fluid drainage tract for treatment of glaucoma | Procedure | 66170 |
13 | Less often than most peers in Ophthalmology |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
86 | More often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
237 | More than most peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
233 | More often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
161 | More than most peers in Ophthalmology |
| Exam of the internal drainage system of eye | Treatment | 92020 |
149 | More often than most peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
126 | As often as other peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
94 | More often than most peers in Ophthalmology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other eye doctors at this location 7
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 23 related providers in 4 groups
Trained at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 5
Providers in NH who bill this service to Medicare most often.
Common questions
What is Dr. Sears's specialty?
Dr. Sears is an eye doctor in Portsmouth, NH. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where can I find Dr. Sears?
Dr. Sears is listed at 155 Borthwick Ave Ste 200E, Portsmouth, NH 03801. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Sears?
The number on file is (603) 436-1773. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Sears?
Dr. Sears's National Provider Identifier is 1306103577. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Sears's medical education?
Dr. Sears attended Clvlnd Clinic Lerner College of Med of Case Wstn RSV University, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Sears have?
Dr. Sears has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Sears known for?
According to Medicare billing data, Dr. Sears performs procedures including removal of cataract with insertion of prosthetic lens, insertion of drug delivery implant into tear duct of eye and creation of eye fluid drainage tract for treatment of glaucoma; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as imaging of optic nerve and exam of visual field with extended testing, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Sears's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sears. If this is you, claiming it is free.
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