Doctor profile · Federal record

Dr. Caitlin Johnston, PA-C

Physician Assistant · Physician Assistant · Physician Assistant · Oshkosh, WI

  • NPI 1124400171
  • Accepts Medicare
  • MIPS 90.5 / 100 · 2023
  • 11 yrs in practice
  • Licensed in 3 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
855 N Westhaven Dr
Oshkosh, WI 549047668
(920) 303-8700
fax (920) 456-7601
Additional location
3181 Sw Sam Jackson Park RD # McL586
Portland, OR 972393011
(503) 494-8534
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
June 2015 — 11 yrs on file
Profile last updated
January 25, 2024
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
363A00000X — NUCC code
State licenses (3)
Wisconsin #7674 · Oregon #PA181482 · Illinois #085005500
Medicaid
WI #100260949

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124400171. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
47
Distinct HCPCS
1
Medicare allowed
$3,912
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 47 32 $83

In context: peer comparison

Among 12 peers in this city , average services per provider: 173. This provider delivers 0.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
138
Patients
59
Total drug cost
$3,975
Drug Type Claims Patients Total cost
Letrozole Generic 60 21 $1,526
Tamoxifen Citrate Generic 45 17 $1,677
Anastrozole Generic 33 21 $772

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Caitlin Johnston's medical specialty?
Dr. Caitlin Johnston practices Physician Assistant in Oshkosh, WI.
Where does Dr. Caitlin Johnston practice?
Dr. Caitlin Johnston practices at 855 N Westhaven Dr, Oshkosh, WI 549047668. Office phone: 9203038700.
What is Dr. Caitlin Johnston's NPI?
Dr. Caitlin Johnston's National Provider Identifier (NPI) is 1124400171, issued by NPPES.
Does Dr. Caitlin Johnston accept Medicare assignment?
Yes. Dr. Caitlin Johnston accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Caitlin Johnston commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.