Doctor profile · Federal record

Dr. Ruthann Peck

Physician Assistant · Oshkosh, WI

  • NPI 1770746067
  • Accepts Medicare
  • 18 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
855 N Westhaven Dr
Oshkosh, WI 549047668
(920) 303-8700
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
July 2008 — 18 yrs on file
Profile last updated
October 13, 2023
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Wisconsin #2305
Medicaid
WI #43020611

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770746067. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,671
Distinct HCPCS
6
Medicare allowed
$65,427
HCPCS Description Services Patients Avg allowed
J2357 Injection, omalizumab, 5 mg 1,350 11 $38
95018 Test for allergy using combination of methods with drug or biological 147 16 $16
99214 Established patient office or other outpatient visit, 30-39 minutes 90 63 $101
96372 Injection of drug or substance under skin or into muscle 49 15 $12
94010 Test to measure expiratory airflow and volume 20 17 $21
95076 Test for allergy using ingested items, initial 2 hours 15 15 $100

In context: peer comparison

Among 12 peers in this city , average services per provider: 173. This provider delivers 9.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
755
Patients
189
Total drug cost
$238,729
Drug Type Claims Patients Total cost
Montelukast Sodium Generic 116 29 $1,486
Fluticasone Propionate Generic 88 24 $1,559
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 71 30 $2,137
Ipratropium Bromide Generic 69 25 $3,861
Prednisone Generic 63 28 $221
Advair Hfa (Fluticasone Propion/Salmeterol) Brand 59 14 $43,898
Symbicort (Budesonide/Formoterol Fumarate) Brand 50 0 $30,491
Azelastine Hcl Generic 44 16 $1,071
Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) Brand 37 12 $27,553
Levocetirizine Dihydrochloride Generic 32 0 $1,334

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ruthann Peck's medical specialty?
Dr. Ruthann Peck practices Physician Assistant in Oshkosh, WI.
Where does Dr. Ruthann Peck practice?
Dr. Ruthann Peck practices at 855 N Westhaven Dr, Oshkosh, WI 549047668. Office phone: 9203038700.
What is Dr. Ruthann Peck's NPI?
Dr. Ruthann Peck's National Provider Identifier (NPI) is 1770746067, issued by NPPES.
Does Dr. Ruthann Peck accept Medicare assignment?
Yes. Dr. Ruthann Peck accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ruthann Peck commonly perform?
Top Medicare-reported procedures in 2023: Injection, omalizumab, 5 mg (HCPCS J2357); Test for allergy using combination of methods with drug or biological (HCPCS 95018); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.