Nancy Cook, NP
NPI 1639314719 · Adult Health Nurse Practitioner · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Cook, NP is a Adult Health Nurse Practitioner provider in Walnut Creek, CA (NPI 1639314719).
Provider details
- NPI number
- 1639314719
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 15413 (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
17 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 174 | 86 |
| Nitroglycerin | 144 | 107 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 141 | 75 |
| Atorvastatin Calcium | 118 | 73 |
| Rosuvastatin Calcium | 44 | 22 |
| Furosemide | 23 | 14 |
| Isosorbide Mononitratebrand: Isosorbide Mononitrate Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (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
- 2008-12-03
- Last updated
- 2021-12-30
Frequently asked questions
- What is Nancy Cook's NPI number?
- Nancy Cook's National Provider Identifier (NPI) is 1639314719, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Cook's specialty?
- Nancy Cook is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nancy Cook located?
- Nancy Cook's practice location on file with NPPES is 1656 N California Blvd, Walnut Creek, CA 94596.
- What is Nancy Cook's phone number?
- The practice phone number listed in the NPPES registry for Nancy Cook is (502) 417-4344.
- Does Nancy Cook accept Medicare?
- Nancy Cook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Cook's NPI active?
- Yes — Nancy Cook's NPI (1639314719) is active in the NPPES registry as of the last update on 2021-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.