Mary Horner, NP
NPI 1962717371 · Family Nurse Practitioner · Oconomowoc, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Horner, NP is a Family Nurse Practitioner provider in Oconomowoc, WI (NPI 1962717371).
Provider details
- NPI number
- 1962717371
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 4109 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 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
1,770 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) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 1,104 | $101 |
| Follow-Up Psychiatric Collaborative Care Management, Subsequent Calendar Month, First 60 Minutes99493 | 260 | $112 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians andG0180 | 83 | $43 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 73 | $61 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 58 | $103 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 137 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Potassium Chloride | 529 | 58 |
| Furosemide | 474 | 50 |
| Levothyroxine Sodium | 462 | 49 |
| Sertraline Hcl | 436 | 48 |
| Atorvastatin Calcium | 432 | 39 |
| Quetiapine Fumarate | 425 | 42 |
| Metoprolol Tartrate | 389 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-08-10
- Last updated
- 2025-03-10
- Certified
- 2025-03-10
Frequently asked questions
- What is Mary Horner's NPI number?
- Mary Horner's National Provider Identifier (NPI) is 1962717371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Horner's specialty?
- Mary Horner is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Horner located?
- Mary Horner's practice location on file with NPPES is 771 Burr Oak Ln, Oconomowoc, WI 53066-8657.
- What is Mary Horner's phone number?
- The practice phone number listed in the NPPES registry for Mary Horner is (414) 687-0936.
- Does Mary Horner accept Medicare?
- Mary Horner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Horner's NPI active?
- Yes — Mary Horner's NPI (1962717371) is active in the NPPES registry as of the last update on 2025-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.