John Flatter, M.D.
NPI 1780071662 · Ophthalmology Physician · Wausau, WI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Flatter, M.D. is a Ophthalmology Physician provider in Wausau, WI (NPI 1780071662).
Provider details
- NPI number
- 1780071662
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 71158-20 (WI)
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
11 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
2,273 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) |
|---|---|---|
| Measurement of Corneal Curvature and Depth of Eye92136 | 680 | $25 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 383 | $498 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 230 | $125 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 191 | $88 |
| Imaging of Retina92134 | 172 | $37 |
| Established Patient Complete Exam of Visual System92014 | 149 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 585 | 377 |
| Moxifloxacin Hclbrand: Moxifloxacin | 484 | 292 |
| Latanoprost | 386 | 102 |
| Diclofenac Sodium | 381 | 245 |
| Timolol Maleate | 148 | 46 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 71 | 13 |
| Ketorolac Tromethamine | 49 | 37 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,676 across 32 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
- 2015-04-18
- Last updated
- 2020-10-07
- Certified
- 2020-10-07
Frequently asked questions
- What is John Flatter's NPI number?
- John Flatter's National Provider Identifier (NPI) is 1780071662, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Flatter's specialty?
- John Flatter is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Flatter located?
- John Flatter's practice location on file with NPPES is 800 N 1st St, Wausau, WI 54403-4754.
- What is John Flatter's phone number?
- The practice phone number listed in the NPPES registry for John Flatter is (715) 261-8500.
- Does John Flatter accept Medicare?
- John Flatter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Flatter's NPI active?
- Yes — John Flatter's NPI (1780071662) is active in the NPPES registry as of the last update on 2020-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.