Timothy Sullivan, MD
NPI 1538486717 · Ophthalmology Physician · Portsmouth, NH
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Sullivan, MD is a Ophthalmology Physician provider in Portsmouth, NH (NPI 1538486717).
Provider details
- NPI number
- 1538486717
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 16565 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,895 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 | 1,093 | $127 |
| Imaging of Optic Nerve92133 | 856 | $35 |
| Exam of Visual Field With Extended Testing92083 | 530 | $64 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 413 | $38 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 330 | $468 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 305 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,510 | 463 |
| Timolol Maleate | 736 | 260 |
| Brimonidine Tartrate | 538 | 180 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 506 | 165 |
| Dorzolamide Hcl | 291 | 118 |
| Bimatoprostbrand: Lumigan | 261 | 81 |
| Prednisolone Acetate | 193 | 132 |
| Netarsudil Mesylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$494 across 18 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
Registry dates
- Enumerated
- 2010-04-27
- Last updated
- 2020-05-11
- Certified
- 2020-05-11
Frequently asked questions
- What is Timothy Sullivan's NPI number?
- Timothy Sullivan's National Provider Identifier (NPI) is 1538486717, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Sullivan's specialty?
- Timothy Sullivan is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Sullivan located?
- Timothy Sullivan's practice location on file with NPPES is 155 Borthwick Ave, Portsmouth, NH 03801-7156.
- What is Timothy Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Timothy Sullivan is (603) 436-1773.
- Does Timothy Sullivan accept Medicare?
- Timothy Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Sullivan's NPI active?
- Yes — Timothy Sullivan's NPI (1538486717) is active in the NPPES registry as of the last update on 2020-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.