James Tsai, MD
NPI 1336226588 · Ophthalmology Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Tsai, MD is a Ophthalmology Physician provider in New Haven, CT (NPI 1336226588).
Provider details
- NPI number
- 1336226588
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 044828 (CT)
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
19 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
591 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) |
|---|---|---|
| Exam of Visual Field With Extended Testing92083 | 152 | $71 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 115 | $18 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 100 | $142 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 71 | $102 |
| Imaging of Optic Nerve92133 | 65 | $38 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 145 | 38 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 111 | 33 |
| Timolol Maleate | 46 | 12 |
| Brimonidine Tartrate | 36 | — |
| Bimatoprostbrand: Lumigan | 34 | — |
| Brinzolamide/Brimonidine Tartbrand: Simbrinza | 33 | — |
| Netarsudil Mesylatebrand: Rhopressa | 31 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$176 across 3 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
- 2006-11-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Tsai's NPI number?
- James Tsai's National Provider Identifier (NPI) is 1336226588, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Tsai's specialty?
- James Tsai is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is James Tsai located?
- James Tsai's practice location on file with NPPES is 800 Howard Ave, New Haven, CT 06519-1369.
- What is James Tsai's phone number?
- The practice phone number listed in the NPPES registry for James Tsai is (203) 785-2140.
- Does James Tsai accept Medicare?
- James Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Tsai's NPI active?
- Yes — James Tsai's NPI (1336226588) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.