Douglas Long, M.D.
NPI 1255368528 · Ophthalmology Physician · Waukesha, WI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Long, M.D. is a Ophthalmology Physician provider in Waukesha, WI (NPI 1255368528).
Provider details
- NPI number
- 1255368528
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 39703 (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
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
1,532 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 280 | $85 |
| Established Patient Complete Exam of Visual System92014 | 248 | $119 |
| Imaging of Retina92134 | 172 | $36 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 130 | $503 |
| Ultrasound Scan to Determine Eye Length and Lens Power76519 | 127 | $48 |
| Injection of Drug Into Eye67028 | 89 | $105 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 403 | 132 |
| Ketorolac Tromethamine | 328 | 240 |
| Prednisolone Acetate | 315 | 243 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 101 | 54 |
| Timolol Maleate | 37 | 16 |
| Ciprofloxacin Hcl | 24 | 23 |
| Brinzolamide/Brimonidine Tartbrand: Simbrinza | 21 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$217 across 5 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
- 2006-06-26
- Last updated
- 2023-12-26
- Certified
- 2023-12-26
Frequently asked questions
- What is Douglas Long's NPI number?
- Douglas Long's National Provider Identifier (NPI) is 1255368528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Long's specialty?
- Douglas Long is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Long located?
- Douglas Long's practice location on file with NPPES is N19w23993 Ridgeview Pkwy W Ste 100, Waukesha, WI 53188-1031.
- What is Douglas Long's phone number?
- The practice phone number listed in the NPPES registry for Douglas Long is (262) 547-3352.
- Does Douglas Long accept Medicare?
- Douglas Long is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Long's NPI active?
- Yes — Douglas Long's NPI (1255368528) is active in the NPPES registry as of the last update on 2023-12-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.