Desiree Allyn, FNP, MSN
NPI 1669616587 · Family Nurse Practitioner · Walnut Creek, CA
Enrolled with Medicare as Order and Referring Only - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Desiree Allyn, FNP, MSN is a Family Nurse Practitioner provider in Walnut Creek, CA (NPI 1669616587).
Provider details
- NPI number
- 1669616587
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP, MSN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 18820 (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
17 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
- 2009-04-22
- Last updated
- 2009-04-22
Frequently asked questions
- What is Desiree Allyn's NPI number?
- Desiree Allyn's National Provider Identifier (NPI) is 1669616587, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Desiree Allyn's specialty?
- Desiree Allyn is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Desiree Allyn located?
- Desiree Allyn's practice location on file with NPPES is 572 Churchill Downs Ct, Walnut Creek, CA 94597-7600.
- What is Desiree Allyn's phone number?
- The practice phone number listed in the NPPES registry for Desiree Allyn is (925) 933-3888.
- Does Desiree Allyn accept Medicare?
- Desiree Allyn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Desiree Allyn's NPI active?
- Yes — Desiree Allyn's NPI (1669616587) is active in the NPPES registry as of the last update on 2009-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.