Margaret Powell, MD
NPI 1578912077 · Ophthalmology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Powell, MD is a Ophthalmology Physician provider in Madison, WI (NPI 1578912077).
Provider details
- NPI number
- 1578912077
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 72754 (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
10 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
2,461 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 477 | $85 |
| Exam of Visual Field With Extended Testing92083 | 392 | $60 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 388 | $23 |
| Imaging of Optic Nerve92133 | 376 | $32 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 237 | $119 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 230 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 720 | 210 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 398 | 134 |
| Brimonidine Tartrate | 361 | 121 |
| Prednisolone Acetate | 350 | 281 |
| Ofloxacin | 338 | 273 |
| Timolol Maleate | 253 | 82 |
| Ketorolac Tromethamine | 244 | 204 |
| Dorzolamide Hcl | 184 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-06-07
- Last updated
- 2021-08-24
- Certified
- 2021-08-24
Frequently asked questions
- What is Margaret Powell's NPI number?
- Margaret Powell's National Provider Identifier (NPI) is 1578912077, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Powell's specialty?
- Margaret Powell is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Powell located?
- Margaret Powell's practice location on file with NPPES is 1025 Regent St, Madison, WI 53715-1248.
- What is Margaret Powell's phone number?
- The practice phone number listed in the NPPES registry for Margaret Powell is (608) 282-2000.
- Does Margaret Powell accept Medicare?
- Margaret Powell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Powell's NPI active?
- Yes — Margaret Powell's NPI (1578912077) is active in the NPPES registry as of the last update on 2021-08-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.