David Yi, MD
NPI 1003808197 · Ophthalmology Physician · Chelmsford, MA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Yi, MD is a Ophthalmology Physician provider in Chelmsford, MA (NPI 1003808197).
Provider details
- NPI number
- 1003808197
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 209741 (MA)
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
20 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
3,236 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 Complete Exam of Visual System92014 | 734 | $140 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 633 | $99 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 319 | $463 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 310 | $43 |
| Imaging of Optic Nerve92133 | 308 | $40 |
| Exam of Visual Field With Extended Testing92083 | 273 | $72 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 858 | 266 |
| Prednisolone Acetate | 290 | 162 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 229 | 73 |
| Moxifloxacin Hclbrand: Moxifloxacin | 174 | 91 |
| Brimonidine Tartrate | 154 | 56 |
| Ketorolac Tromethamine | 150 | 90 |
| Cyclosporinebrand: Restasis | 136 | 53 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$183 across 6 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
- 2005-08-16
- Last updated
- 2011-09-29
Frequently asked questions
- What is David Yi's NPI number?
- David Yi's National Provider Identifier (NPI) is 1003808197, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Yi's specialty?
- David Yi is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is David Yi located?
- David Yi's practice location on file with NPPES is 19 Village Sq, Chelmsford, MA 01824-2712.
- What is David Yi's phone number?
- The practice phone number listed in the NPPES registry for David Yi is (978) 256-5600.
- Does David Yi accept Medicare?
- David Yi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Yi's NPI active?
- Yes — David Yi's NPI (1003808197) is active in the NPPES registry as of the last update on 2011-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.