Cori Lee Chastain, NP
Family Nurse Practitioner · Irvine, CA
Cori Lee Chastain, NP is a family nurse practitioner with a practice address in Irvine, California, and NPI 1265143416, issued on Dec 8, 2022. Check the license (California NP95022821, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cori Lee Chastain
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- NP95022821 CA
Self-reported in NPPES; status is on the state search - Practice location
- 16105 Sand Canyon Ave Ste 230, Irvine, CA 92618
- Phone
- (949) 722-6237
- Enumerated
- Dec 8, 2022
- Record last updated
- Jan 15, 2025
- Medicare enrollment
- Enrolled (PECOS I20230123001303); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 16105 Sand Canyon Ave Ste 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rafi Ahmed, MDHematology & Oncology Physician1205093028
- Tara SeeryHematology & Oncology Physician1043415961
- Pollyanna Tang, PA-CPhysician Assistant1669005054
Verify Cori Lee Chastain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP95022821Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average family nurse practitioner in 2024
503 Medicare Part D claims for 207 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims. 43 claims were for opioids.
Most prescribed
- Anastrozole57 claims
- Hydrocodone-Acetaminophen37 claims
- Hydroxyurea34 claims
- Abiraterone Acetate29 claims
- Prednisone23 claims
- Revlimid23 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $3,999.01
154 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Hoag ClinicNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
152 family nurse practitioner records list a practice address in Irvine
They are 152 of the 7,778 NPPES records with a practice address in Irvine, and 16,966 family nurse practitioner records in California.
All 152 in Irvine → All 16,966 in California → Every provider in Irvine →
Other family nurse practitioner records in California
- Danielle Aaroe, FAMILY NURSE PRACTITOroville, CA1750767083
- Joshua AaronMission Hills, CA1477291805
- Orly Aaron, NPSan Francisco, CA1376912451
- Paris Gilbert Russ AaronSacramento, CA1871079111
- Tiffanne Aaronsen, FNPIndio, CA1568191807
- Alvin Joseph Abad, FNP-CSan Francisco, CA1154919306
- Frances Abad, FNPLos Angeles, CA1053504514
- Nnenna AbaezeLong Beach, CA1457820763
- Raymond Abagat, FNPTorrance, CA1306685821
- Ashley AbalCastaic, CA1740140698
Common questions
What is Cori Lee Chastain, NP's NPI number?
Cori Lee Chastain, NP's National Provider Identifier (NPI) is 1265143416, issued on Dec 8, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Cori Lee Chastain, NP located?
The NPPES record lists a practice address at 16105 Sand Canyon Ave Ste 230, Irvine, CA, 92618. Phone: (949) 722-6237. Providers update this record themselves, so call before visiting.
How can I verify Cori Lee Chastain, NP's license?
NPPES lists California license number NP95022821, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Cori Lee Chastain, NP prescribe under Medicare Part D?
In 2024, Cori Lee Chastain, NP had 503 Medicare Part D claims for 207 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.