Cori Chastain, NP
NPI 1265143416 · Family Nurse Practitioner · Irvine, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cori Chastain, NP is a Family Nurse Practitioner provider in Irvine, CA (NPI 1265143416).
Provider details
- NPI number
- 1265143416
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- NP95022821 (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 tenure33% of score
3 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 57 | 28 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 37 | 15 |
| Hydroxyurea | 34 | 17 |
| Abiraterone Acetate | 29 | — |
| Prednisone | 23 | 11 |
| Lenalidomidebrand: Revlimid | 23 | — |
| Letrozole | 16 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,999 across 154 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-12-08
- Last updated
- 2025-01-15
- Certified
- 2025-01-15
Frequently asked questions
- What is Cori Chastain's NPI number?
- Cori Chastain's National Provider Identifier (NPI) is 1265143416, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cori Chastain's specialty?
- Cori Chastain is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cori Chastain located?
- Cori Chastain's practice location on file with NPPES is 16105 Sand Canyon Ave Ste 230, Irvine, CA 92618-3780.
- What is Cori Chastain's phone number?
- The practice phone number listed in the NPPES registry for Cori Chastain is (949) 722-6237.
- Does Cori Chastain accept Medicare?
- Cori Chastain is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cori Chastain's NPI active?
- Yes — Cori Chastain's NPI (1265143416) is active in the NPPES registry as of the last update on 2025-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.