Robert Zendler, DO
NPI 1669686515 · Ophthalmology Physician · Flint, MI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Zendler, DO is a Ophthalmology Physician provider in Flint, MI (NPI 1669686515).
Provider details
- NPI number
- 1669686515
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5101009018 (MI)
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
1,372 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 | 332 | $121 |
| Imaging of Retina92134 | 201 | $37 |
| Established Patient Complete Exam of Visual System92014 | 170 | $116 |
| Exam of Visual Field With Extended Testing92083 | 135 | $58 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 96 | $289 |
| Imaging of Optic Nerve92133 | 96 | $33 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 404 | 124 |
| Fluorometholone | 82 | 77 |
| Timolol Maleate | 56 | 20 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 53 | 21 |
| Prednisolone Acetate | 52 | 44 |
| Bimatoprostbrand: Lumigan | 46 | 17 |
| Cyclosporine | 31 | 16 |
| Brimonidine Tartrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$319 across 15 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
- 2007-05-10
- Last updated
- 2019-06-19
Frequently asked questions
- What is Robert Zendler's NPI number?
- Robert Zendler's National Provider Identifier (NPI) is 1669686515, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Zendler's specialty?
- Robert Zendler is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Zendler located?
- Robert Zendler's practice location on file with NPPES is 1335 S Linden Rd, Flint, MI 48532.
- What is Robert Zendler's phone number?
- The practice phone number listed in the NPPES registry for Robert Zendler is (810) 733-5535.
- Does Robert Zendler accept Medicare?
- Robert Zendler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Zendler's NPI active?
- Yes — Robert Zendler's NPI (1669686515) is active in the NPPES registry as of the last update on 2019-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.