Glenn Ostriker, M.D.
NPI 1003995796 · Ophthalmology Physician · Stamford, CT
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Glenn Ostriker, M.D. is a Ophthalmology Physician provider in Stamford, CT (NPI 1003995796).
Provider details
- NPI number
- 1003995796
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 26705 (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
1,924 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) |
|---|---|---|
| Extended Exam of the Back Part of the Eye With Optic Nerve Drawing92202 | 447 | $16 |
| Established Patient Complete Exam of Visual System92014 | 369 | $132 |
| Established Patient Problem Focused Exam of Visual System92012 | 297 | $93 |
| Exam of Visual Field With Extended Testing92083 | 247 | $67 |
| Imaging of Optic Nerve92133 | 228 | $35 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 80 | $95 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 168 | 43 |
| Prednisolone Acetate | 115 | 62 |
| Bimatoprostbrand: Lumigan | 71 | 17 |
| Brimonidine Tartratebrand: Alphagan P | 62 | 14 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 49 | 17 |
| Erythromycin Basebrand: Erythromycin | 48 | 39 |
| Besifloxacin Hclbrand: Besivance | 47 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 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
- 2006-11-03
- Last updated
- 2010-10-08
Frequently asked questions
- What is Glenn Ostriker's NPI number?
- Glenn Ostriker's National Provider Identifier (NPI) is 1003995796, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Glenn Ostriker's specialty?
- Glenn Ostriker is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Glenn Ostriker located?
- Glenn Ostriker's practice location on file with NPPES is 71 Strawberry Hill Ave, Stamford, CT 06902-2757.
- What is Glenn Ostriker's phone number?
- The practice phone number listed in the NPPES registry for Glenn Ostriker is (203) 348-6300.
- Does Glenn Ostriker accept Medicare?
- Glenn Ostriker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Glenn Ostriker's NPI active?
- Yes — Glenn Ostriker's NPI (1003995796) is active in the NPPES registry as of the last update on 2010-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.