David Greenstein, O.D. , M. S.
NPI 1376518332 · Optometrist · West Roxbury, MA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Greenstein, O.D. , M. S. is a Optometrist provider in West Roxbury, MA (NPI 1376518332).
Provider details
- NPI number
- 1376518332
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D. , M. S.
- Sex
- Male
- License
- 2817 (MA)
Specialties & taxonomies
Eye and Vision Services Providers
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
60 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 | 22 | $70 |
| Photography of the Retina92250 | 22 | $38 |
| Established Patient Complete Exam of Visual System92014 | 16 | $140 |
Typical Medicare-allowed amounts for these services range $38–$140 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$99 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
- 2006-02-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is David Greenstein's NPI number?
- David Greenstein's National Provider Identifier (NPI) is 1376518332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Greenstein's specialty?
- David Greenstein is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is David Greenstein located?
- David Greenstein's practice location on file with NPPES is 81 Corey St, West Roxbury, MA 02132-2338.
- What is David Greenstein's phone number?
- The practice phone number listed in the NPPES registry for David Greenstein is (617) 323-3338.
- Does David Greenstein accept Medicare?
- David Greenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Greenstein's NPI active?
- Yes — David Greenstein's NPI (1376518332) 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.