Nancy Elizabeth Cook, NP
Adult Health Nurse Practitioner · Walnut Creek, CA
Nancy Elizabeth Cook, NP is an adult health nurse practitioner with a practice address in Walnut Creek, California, and NPI 1639314719, issued on Dec 3, 2008. Check the license (California 15413, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nancy Elizabeth Cook
- Credential
- NP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- 15413 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1656 N California Blvd, Walnut Creek, CA 94596
- Phone
- (502) 417-4344
- Enumerated
- Dec 3, 2008
- Record last updated
- Dec 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160627000648); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 1,405 in California → Look up another NPI →
Also registered at 1656 N California Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nancy Elizabeth Cook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 15413Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
801 Medicare Part D claims for 214 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Pantoprazole Sodium174 claims
- Nitroglycerin144 claims
- Clopidogrel141 claims
- Atorvastatin Calcium118 claims
- Rosuvastatin Calcium44 claims
- Furosemide23 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: $21.82
1 payment: food and beverage; the largest payer was Chiesi USA, Inc. The 12,291 providers of this specialty with any payment received $946.40 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
- Permanente Medical Group IncSan Leandro, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nancy Elizabeth Cook among 1,405 adult health nurse practitioner records in California
Nancy Elizabeth Cook, NP is one of 1,405 adult health nurse practitioner records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 30% of them.
- NPI issued2008 · 30% of these records are older, 66% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileYes · 31% of these records are
- Graduated2001 · median 2013 among the 441 with a school on file
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in California
There are 1,405 adult health nurse practitioner records in California.
All 1,405 in California → Every provider in Walnut Creek → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Jacqueline Alkire, NPWalnut Creek, CA 945961902890114
- Sari Fredrickson, MS, NPWalnut Creek, CA 945961578565198
- Lauren Johnson, N.P.Walnut Creek, CA 945961538506126
- Lynda MooreWalnut Creek, CA 945961881932812
- Linda Rollins, NP, MSWalnut Creek, CA 945961265424113
- Rebecca Small, NPWalnut Creek, CA 945961346801719
- Zachary Johnston, NPWalnut Creek, CA 945971730075623
- Gwendolyn Cashman, N.P.Walnut Creek, CA 945981720057037
Common questions
What is Nancy Elizabeth Cook, NP's NPI number?
Nancy Elizabeth Cook, NP's National Provider Identifier (NPI) is 1639314719, issued on Dec 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Nancy Elizabeth Cook, NP located?
The NPPES record lists a practice address at 1656 N California Blvd, Walnut Creek, CA, 94596. Phone: (502) 417-4344. Providers update this record themselves, so call before visiting.
How can I verify Nancy Elizabeth Cook, NP's license?
NPPES lists California license number 15413, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Nancy Elizabeth Cook, NP prescribe under Medicare Part D?
In 2024, Nancy Elizabeth Cook, NP had 801 Medicare Part D claims for 214 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.