Mary Ann Werz, MD
NPI 1750303798 · Neurology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ann Werz, MD is a Neurology Physician provider in Madison, WI (NPI 1750303798).
Provider details
- NPI number
- 1750303798
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 66714-020 (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
19 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
800 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 162 | $15 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 124 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 115 | $168 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 90 | $205 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 74 | $119 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levetiracetambrand: Levetiracetam Er | 514 | 86 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 271 | 51 |
| Levetiracetam | 253 | 56 |
| Topiramate | 162 | 33 |
| Rivastigmine Tartratebrand: Rivastigmine | 157 | 40 |
| Lacosamide | 157 | 31 |
| Zonisamide | 116 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-25
- Last updated
- 2020-12-20
- Certified
- 2020-12-20
Frequently asked questions
- What is Mary Ann Werz's NPI number?
- Mary Ann Werz's National Provider Identifier (NPI) is 1750303798, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ann Werz's specialty?
- Mary Ann Werz is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Ann Werz located?
- Mary Ann Werz's practice location on file with NPPES is 700 S Park St Ste a, Madison, WI 53715-1830.
- What is Mary Ann Werz's phone number?
- The practice phone number listed in the NPPES registry for Mary Ann Werz is (608) 260-2900.
- Does Mary Ann Werz accept Medicare?
- Mary Ann Werz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ann Werz's NPI active?
- Yes — Mary Ann Werz's NPI (1750303798) is active in the NPPES registry as of the last update on 2020-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.