Kari Westenhaver, R.N.
NPI 1366887010 · Nurse Practitioner · San Marcos, CA
Enrolled with Medicare as Order and Referring Only - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kari Westenhaver, R.N. is a Nurse Practitioner provider in San Marcos, CA (NPI 1366887010).
Provider details
- NPI number
- 1366887010
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- R.N.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95003444 (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 tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 114 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 398 | 65 |
| Amlodipine Besylate | 225 | 34 |
| Atorvastatin Calcium | 197 | 31 |
| Furosemide | 192 | 32 |
| Levothyroxine Sodium | 168 | 27 |
| Rosuvastatin Calcium | 164 | 23 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-05-08
- Last updated
- 2023-09-07
- Certified
- 2023-09-07
Frequently asked questions
- What is Kari Westenhaver's NPI number?
- Kari Westenhaver's National Provider Identifier (NPI) is 1366887010, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kari Westenhaver's specialty?
- Kari Westenhaver is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Kari Westenhaver located?
- Kari Westenhaver's practice location on file with NPPES is 1706 Descanso Ave, San Marcos, CA 92078-2514.
- What is Kari Westenhaver's phone number?
- The practice phone number listed in the NPPES registry for Kari Westenhaver is (760) 685-7888.
- Does Kari Westenhaver accept Medicare?
- Kari Westenhaver is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kari Westenhaver's NPI active?
- Yes — Kari Westenhaver's NPI (1366887010) is active in the NPPES registry as of the last update on 2023-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.