Doctor profile · Federal record

Dr. Mary Horner, NP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Nurse Practitioner · Oconomowoc, WI

  • NPI 1962717371
  • Accepts Medicare
  • 16 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
771 Burr Oak Ln
Oconomowoc, WI 530668657
(414) 687-0936

Credentials & registration

NPPES · NUCC
NPI registered
August 2010 — 16 yrs on file
Profile last updated
March 10, 2025
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Wisconsin #4109

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1962717371. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,784
Distinct HCPCS
10
Medicare allowed
$172,487
HCPCS Description Services Patients Avg allowed
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 1,140 201 $102
99493 Follow-up psychiatric collaborative care management, subsequent calendar month, first 60 minutes 149 59 $114
G2214 Initial or subsequent psychiatric collaborative care management, first 30 minutes in a month of behavioral health care manager activities, in consultation with a psychiatric consultant, and directed by the treating physician or other qualified health care 139 55 $47
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 83 54 $50
G0180 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 and 56 45 $42
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 52 52 $104
99344 Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes 43 43 $115
99492 Initial psychiatric collaborative care management, first calendar month, first 70 minutes 29 29 $120
99350 Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 23 21 $149
99496 Transitional care management services for problem of high complexity 21 17 $222

In context: peer comparison

Among 1 peers in Oconomowoc Family Nurse Practitioner, average services per provider: 137. This provider delivers 13× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,006
Patients
587
Total drug cost
$60,213
Drug Type Claims Patients Total cost
Potassium Chloride Generic 407 62 $9,841
Furosemide Generic 401 63 $2,474
Atorvastatin Calcium Generic 362 56 $5,125
Levothyroxine Sodium Generic 360 46 $4,376
Sertraline Hcl Generic 291 50 $3,476
Amlodipine Besylate Generic 266 34 $2,728
Quetiapine Fumarate Generic 262 34 $4,357
Donepezil Hcl Generic 232 35 $3,116
Pantoprazole Sodium Generic 232 28 $4,108
Escitalopram Oxalate Generic 231 37 $4,013

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Horner's medical specialty?
Dr. Mary Horner practices Family Nurse Practitioner in Oconomowoc, WI.
Where does Dr. Mary Horner practice?
Dr. Mary Horner practices at 771 Burr Oak Ln, Oconomowoc, WI 530668657. Office phone: 4146870936.
What is Dr. Mary Horner's NPI?
Dr. Mary Horner's National Provider Identifier (NPI) is 1962717371, issued by NPPES.
Does Dr. Mary Horner accept Medicare assignment?
Yes. Dr. Mary Horner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Horner commonly perform?
Top Medicare-reported procedures in 2023: Residence visit for established patient with moderate level of medical decision making (HCPCS 99349); Follow-up psychiatric collaborative care management, subsequent calendar month (HCPCS 99493); Initial or subsequent psychiatric collaborative care management (HCPCS G2214). Source: CMS Medicare Physician & Other Practitioners file.