Katherine Westbrook, N.P.
NPI 1215950159 · Nurse Practitioner · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Westbrook, N.P. is a Nurse Practitioner provider in Walnut Creek, CA (NPI 1215950159).
Provider details
- NPI number
- 1215950159
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- NP5743 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
266 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 105 | $9 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 90 | $221 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 59 | $183 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 12 | $130 |
Typical Medicare-allowed amounts for these services range $9–$221 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (2)
- 1656 N California BlvdSuite 300Walnut Creek, CA 94596-4180Phone: (925) 941-4154Fax: (925) 941-4059
- 1656 N California BlvdSuite 300Walnut Creek, CA 94596-4180Phone: (925) 941-4154Fax: (925) 941-4059
Registry dates
- Enumerated
- 2006-07-25
- Last updated
- 2019-07-03
Frequently asked questions
- What is Katherine Westbrook's NPI number?
- Katherine Westbrook's National Provider Identifier (NPI) is 1215950159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Westbrook's specialty?
- Katherine Westbrook is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Westbrook located?
- Katherine Westbrook's practice location on file with NPPES is 1479 Ygnacio Valley Rd, Walnut Creek, CA 94598.
- What is Katherine Westbrook's phone number?
- The practice phone number listed in the NPPES registry for Katherine Westbrook is (925) 941-4154.
- Does Katherine Westbrook accept Medicare?
- Katherine Westbrook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Westbrook's NPI active?
- Yes — Katherine Westbrook's NPI (1215950159) is active in the NPPES registry as of the last update on 2019-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.