Doctor profile · Federal record

Dr. Kathryn Shirley, FNP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Nurse Practitioner · Nurse Practitioner · Austin, TX

  • NPI 1639500465
  • Accepts Medicare
  • MIPS 82.6 / 100 · 2023
  • 13 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
12221 Renfert Way Ste 300
Austin, TX 787585453
(512) 873-8900
fax (512) 873-8913
Mailing address
Po Box 911230
Dallas, TX 753911230

Credentials & registration

NPPES · NUCC
NPI registered
December 2013 — 13 yrs on file
Profile last updated
June 5, 2024
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State licenses (2)
Texas #AP124445 · Texas #530719
Medicaid (2)
TX #332504502 · TX #332504501

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639500465. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
140
Distinct HCPCS
4
Medicare allowed
$6,338
HCPCS Description Services Patients Avg allowed
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 53 43 $7
99214 Established patient office or other outpatient visit, 30-39 minutes 34 29 $104
99213 Established patient office or other outpatient visit, 20-29 minutes 33 32 $71
82565 Blood creatinine level 20 19 $5

In context: peer comparison

Among 161 peers in Austin Family Nurse Practitioner, average services per provider: 298. This provider delivers 0.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,098
Transactions
33
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Intuitive Surgical, INC. 5 $1,241.62
Janssen Biotech, INC. 5 $113.64
Novartis Pharmaceuticals Corporation 3 $80.88
Pfizer INC. 3 $74.62
Incyte Corporation 3 $65.53
Astellas Pharma US INC 3 $60.44
Lilly USA, LLC 2 $52.29
Takeda Pharmaceuticals U.S.A., INC. 2 $46.87
Jazz Pharmaceuticals INC. 1 $33.53
PharmaEssentia USA Corporation 1 $32.75
Abbvie INC. 1 $28.45
Mirati Therapeutics, INC. 1 $26.71
Genzyme Corporation 1 $25.09
Merck Sharp & Dohme LLC 1 $24.04
Taiho Oncology, INC. 1 $23.60

By nature of payment

Travel and Lodging
$1,242
Food and Beverage
$857

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
547
Patients
126
Total drug cost
$1,529,517
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 71 15 $62,883
Anastrozole Generic 60 18 $2,001
Xarelto (Rivaroxaban) Brand 59 18 $52,394
Hydroxyurea Generic 53 13 $1,092
Prednisone Generic 45 17 $448
Verzenio (Abemaciclib) Brand 36 0 $509,474
Acyclovir Generic 33 0 $433
Xtandi (Enzalutamide) Brand 32 0 $454,398
Ondansetron Odt (Ondansetron) Brand 31 21 $722
Abiraterone Acetate Generic 29 0 $93,945

Frequently asked questions

Auto-generated from federal data
What is Dr. Kathryn Shirley's medical specialty?
Dr. Kathryn Shirley practices Family Nurse Practitioner in Austin, TX.
Where does Dr. Kathryn Shirley practice?
Dr. Kathryn Shirley practices at 12221 Renfert Way Ste 300, Austin, TX 787585453. Office phone: 5128738900.
What is Dr. Kathryn Shirley's NPI?
Dr. Kathryn Shirley's National Provider Identifier (NPI) is 1639500465, issued by NPPES.
Does Dr. Kathryn Shirley accept Medicare assignment?
Yes. Dr. Kathryn Shirley accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kathryn Shirley commonly perform?
Top Medicare-reported procedures in 2023: Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS 85025); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.