Howard Ying, M.D.,PH.D.
NPI 1841236791 · Ophthalmology Physician · Cambridge, MA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Howard Ying, M.D.,PH.D. is a Ophthalmology Physician provider in Cambridge, MA (NPI 1841236791).
Provider details
- NPI number
- 1841236791
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.,PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 261272 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
7,854 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) |
|---|---|---|
| Imaging of Retina92134 | 3,517 | $44 |
| Injection of Drug Into Eye67028 | 2,378 | $135 |
| Established Patient Complete Exam of Visual System92014 | 1,228 | $135 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 173 | $177 |
| Established Patient Problem Focused Exam of Visual System92012 | 115 | $96 |
| Exam of Visual Field With Extended Testing92083 | 104 | $69 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 384 | 202 |
| Latanoprost | 288 | 106 |
| Ketorolac Tromethamine | 213 | 73 |
| Brimonidine Tartrate | 184 | 69 |
| Timolol Maleate | 152 | 47 |
| Atropine Sulfate | 112 | 89 |
| Moxifloxacin Hclbrand: Moxifloxacin | 89 | 71 |
| Dorzolamide Hcl/Timolol Maleat |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,550 across 75 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
Additional practice locations (1)
- 2464 Massachusetts Ave Ste 200Cambridge, MA 02140-1646Phone: (617) 657-9464Fax: (617) 491-0470
Registry dates
- Enumerated
- 2006-06-21
- Last updated
- 2018-05-04
Frequently asked questions
- What is Howard Ying's NPI number?
- Howard Ying's National Provider Identifier (NPI) is 1841236791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Howard Ying's specialty?
- Howard Ying is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Howard Ying located?
- Howard Ying's practice location on file with NPPES is 5 Jfk St Ste 302, Cambridge, MA 02138-4916.
- What is Howard Ying's phone number?
- The practice phone number listed in the NPPES registry for Howard Ying is (617) 657-9464.
- Does Howard Ying accept Medicare?
- Howard Ying is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Howard Ying's NPI active?
- Yes — Howard Ying's NPI (1841236791) is active in the NPPES registry as of the last update on 2018-05-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.