Alyssa Westerfield, AGNP
NPI 1427528710 · Nurse Practitioner · Palo Alto, CA
Alyssa Westerfield, AGNP is a Nurse Practitioner provider in Palo Alto, CA (NPI 1427528710).
Provider details
- NPI number
- 1427528710
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- AGNP
- Sex
- Female
- Sole proprietor
- No
- License
- 95010407 (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
7 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-11-29
- Last updated
- 2019-02-18
Frequently asked questions
- What is Alyssa Westerfield's NPI number?
- Alyssa Westerfield's National Provider Identifier (NPI) is 1427528710, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alyssa Westerfield's specialty?
- Alyssa Westerfield is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alyssa Westerfield located?
- Alyssa Westerfield's practice location on file with NPPES is 900 Blake Wilbur Dr Fl 3, Palo Alto, CA 94304-2201.
- What is Alyssa Westerfield's phone number?
- The practice phone number listed in the NPPES registry for Alyssa Westerfield is (650) 498-6000.
- Is Alyssa Westerfield's NPI active?
- Yes — Alyssa Westerfield's NPI (1427528710) is active in the NPPES registry as of the last update on 2019-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.