Erynn Yang, M.D.
NPI 1114135746 · Ophthalmology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erynn Yang, M.D. is a Ophthalmology Physician provider in Boston, MA (NPI 1114135746).
Provider details
- NPI number
- 1114135746
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- R-7767 (IA)
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
2,466 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 | 712 | $139 |
| Imaging of Optic Nerve92133 | 364 | $38 |
| Exam of Visual Field With Extended Testing92083 | 338 | $72 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 330 | $99 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 112 | $547 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 72 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,650 | 422 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 561 | 181 |
| Prednisolone Acetate | 431 | 200 |
| Brimonidine Tartrate | 344 | 115 |
| Timolol Maleate | 276 | 92 |
| Ofloxacin | 210 | 159 |
| Netarsudil Mesylatebrand: Rhopressa | 195 | 55 |
| Dorzolamide Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$111 across 1 record (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
- 2007-05-18
- Last updated
- 2021-03-04
- Certified
- 2021-03-04
Frequently asked questions
- What is Erynn Yang's NPI number?
- Erynn Yang's National Provider Identifier (NPI) is 1114135746, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erynn Yang's specialty?
- Erynn Yang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Erynn Yang located?
- Erynn Yang's practice location on file with NPPES is 133 Brookline Ave, Boston, MA 02215-3904.
- What is Erynn Yang's phone number?
- The practice phone number listed in the NPPES registry for Erynn Yang is (617) 421-1151.
- Does Erynn Yang accept Medicare?
- Erynn Yang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erynn Yang's NPI active?
- Yes — Erynn Yang's NPI (1114135746) is active in the NPPES registry as of the last update on 2021-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.