Doctor profile · Federal record

Dr. Alyssa O'Connor, APNP

Nurse Practitioner · Milwaukee, WI

  • NPI 1245588284
  • Accepts Medicare
  • 14 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
9200 W Wisconsin Ave
Milwaukee, WI 532263522
(414) 805-6000
fax (414) 805-6280
Additional location
1700 W Paradise Dr
West Bend, WI 530959795
(262) 334-3451
fax (262) 347-3044
Additional location
4805 S Moorland RD
New Berlin, WI 531517401
(262) 798-7200
fax (262) 798-7271
Show 1 more location
Additional location
7901 S 6Th St, Electrophysiology
Oak Creek, WI 531542010
(414) 346-8000
fax (414) 346-8010

Credentials & registration

NPPES · NUCC
NPI registered
August 2012 — 14 yrs on file
Profile last updated
March 6, 2024
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
363L00000X — NUCC code
State license (1)
Wisconsin #5032-033
Medicaid
WI #1245588284

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1245588284. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
387
Distinct HCPCS
10
Medicare allowed
$36,369
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 99 86 $113
99214 Established patient office or other outpatient visit, 30-39 minutes 85 80 $78
99215 Established patient office or other outpatient visit, 40-54 minutes 40 37 $143
93280 Programming of dual lead pacemaker system 34 30 $30
99214 Established patient office or other outpatient visit, 30-39 minutes 28 27 $102
92960 External shock to heart to regulate heart beat 21 20 $86
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 20 18 $95
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 19 17 $63
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 16 16 $103
99213 Established patient office or other outpatient visit, 20-29 minutes 13 12 $53

In context: peer comparison

Among 147 peers in Milwaukee Nurse Practitioner, average services per provider: 61. This provider delivers 6.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$105
Transactions
5
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 2 $39.58
Novo Nordisk INC 2 $37.48
Abbott Laboratories 1 $27.83

By nature of payment

Food and Beverage
$105

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
752
Patients
302
Total drug cost
$258,705
Drug Type Claims Patients Total cost
Metoprolol Succinate Generic 207 93 $5,723
Eliquis (Apixaban) Brand 166 71 $192,359
Amiodarone Hcl Generic 127 79 $4,689
Dofetilide Generic 42 18 $8,394
Sotalol (Sotalol Hcl) Brand 36 16 $1,739
Diltiazem 24Hr ER (Cd) (Diltiazem Hcl) Brand 23 12 $1,210
Metoprolol Tartrate Generic 23 13 $193
Potassium Chloride Generic 22 0 $635
Xarelto (Rivaroxaban) Brand 22 0 $26,842
Flecainide Acetate Generic 18 0 $1,310

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alyssa O'Connor's medical specialty?
Dr. Alyssa O'Connor practices Nurse Practitioner in Milwaukee, WI.
Where does Dr. Alyssa O'Connor practice?
Dr. Alyssa O'Connor practices at 9200 W Wisconsin Ave, Milwaukee, WI 532263522. Office phone: 4148056000.
What is Dr. Alyssa O'Connor's NPI?
Dr. Alyssa O'Connor's National Provider Identifier (NPI) is 1245588284, issued by NPPES.
Does Dr. Alyssa O'Connor accept Medicare assignment?
Yes. Dr. Alyssa O'Connor accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alyssa O'Connor commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.