John Decarlo, M.D.
NPI 1346204757 · Ophthalmology Physician · Brookfield, WI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Decarlo, M.D. is a Ophthalmology Physician provider in Brookfield, WI (NPI 1346204757).
Provider details
- NPI number
- 1346204757
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 21652-020 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
326 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 214 | $121 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $85 |
| Imaging of Optic Nerve92133 | 21 | $34 |
| Imaging of Retina92134 | 15 | $38 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 14 | $104 |
Typical Medicare-allowed amounts for these services range $34–$121 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 227 | 65 |
| Timolol Maleate | 71 | 22 |
| Prednisolone Acetate | 57 | 28 |
| Ciprofloxacin Hcl | 37 | 19 |
| Brimonidine Tartrate | 21 | — |
| Acyclovir | 16 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 14 | — |
| Cyclosporinebrand: Restasis |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-13
- Last updated
- 2024-02-19
- Certified
- 2024-02-19
Frequently asked questions
- What is John Decarlo's NPI number?
- John Decarlo's National Provider Identifier (NPI) is 1346204757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Decarlo's specialty?
- John Decarlo is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Decarlo located?
- John Decarlo's practice location on file with NPPES is 16650 W Bluemound Rd # 400b, Brookfield, WI 53005-5920.
- What is John Decarlo's phone number?
- The practice phone number listed in the NPPES registry for John Decarlo is (414) 476-5120.
- Does John Decarlo accept Medicare?
- John Decarlo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Decarlo's NPI active?
- Yes — John Decarlo's NPI (1346204757) is active in the NPPES registry as of the last update on 2024-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.