Doctor profile · Federal record

Dr. Katherine Westbrook, N.P.

Nurse Practitioner · Walnut Creek, CA

  • NPI 1215950159
  • Accepts Medicare
  • MIPS 85.7 / 100 · 2023
  • 36 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1479 Ygnacio Valley RD
Walnut Creek, CA 94598
(925) 941-4154
Additional location
1656 N California Blvd, Suite 300
Walnut Creek, CA 945964180
fax (925) 941-4059
Mailing address
1450 Treat Blvd # 300
Walnut Creek, CA 945972168

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 3, 2019
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
363L00000X — NUCC code
State license (1)
California #NP5743

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215950159. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
187
Distinct HCPCS
4
Medicare allowed
$17,636
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 65 65 $8
99205 New patient office or other outpatient visit, 60-74 minutes 56 56 $221
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing 42 42 $9
99215 Established patient office or other outpatient visit, 40-54 minutes 24 24 $182

In context: peer comparison

Among 8 peers in Walnut Creek Nurse Practitioner, average services per provider: 72. This provider delivers 2.6× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Katherine Westbrook's medical specialty?
Dr. Katherine Westbrook practices Nurse Practitioner in Walnut Creek, CA.
Where does Dr. Katherine Westbrook practice?
Dr. Katherine Westbrook practices at 1479 Ygnacio Valley RD, Walnut Creek, CA 94598. Office phone: 9259414154.
What is Dr. Katherine Westbrook's NPI?
Dr. Katherine Westbrook's National Provider Identifier (NPI) is 1215950159, issued by NPPES.
Does Dr. Katherine Westbrook accept Medicare assignment?
Yes. Dr. Katherine Westbrook accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Westbrook commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); New patient office or other outpatient visit (HCPCS 99205); Routine electrocardiogram (ecg) using at least 12 leads with tracing (HCPCS 93005). Source: CMS Medicare Physician & Other Practitioners file.