Nancy E. Warner, FNP
- Part D claims, 2024
- 143
- Industry payments
- $1,521
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 147 N Brent St, Ventura, CA 93003
- Practice phone
- Call (805) 652-5011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Community Memorial Hospital San Buenaventura
Ventura, California
Find Nancy Warner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Nancy E. Warner is a family nurse practitioner in Ventura, California
Nancy Warner practices at Community Memorial Hospital San Buenaventura in Ventura, California.
Nancy Warner's NPI, 1528088820, was assigned on July 20, 2006. Nancy Warner holds California license RN275223.
- NPI
- 1528088820NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062552987
- NPI enumeration date
- July 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 652-5011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Nancy E. Warner practices at Community Memorial Hospital San Buenaventura in Ventura, California
Nancy Warner's primary practice is Community Memorial Hospital San Buenaventura, at 147 N Brent St, Ventura, CA 93003 in Ventura County. The practice phone is (805) 652-5011.
- Community Memorial Hospital San Buenaventura147 N Brent St, Ventura, CA 93003 · Ventura CountyPhone(805) 652-5011
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Nancy E. Warner is affiliated with 2 sites of care and 1 medical group
Nancy Warner's primary practice is Community Memorial Hospital San Buenaventura in Ventura, California. The medical group on file is Riviera Health Group. Dmand AI also links Nancy Warner to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Nancy E. Warner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nancy Warner practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Memorial Hospital San Buenaventura | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Nancy E. Warner is one of 13,532 family nurse practitioners in California
Family is Nancy Warner's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Nancy Warner is licensed in California.
Specialties and state licenses
- Family nurse practitioner, CaliforniaPrimary
Family nurse practitioners near Nancy Warner
Counts of family nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Nancy E. Warner's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Nancy Warner's median patient age at 70, with 57% women.
Nancy Warner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Nancy E. Warner wrote 143 Medicare Part D claims in 2024
In 2024, Nancy Warner wrote 143 Medicare Part D claims for 64 patients. 97% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $78 in total drug cost.
Nancy Warner's Part D claims by kind of drug, 2024
- Generic138 claims97%
- Brand-name and other5 claims3%
Nancy Warner's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Nancy Warner's Part D claims, 2024
- Antibiotics9%13 of 143 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Nancy E. Warner takes part in Medicare
Nancy Warner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Nancy E. Warner received $1,521 in industry payments from 2024 to 2025
CMS Open Payments shows 12 general payments to Nancy Warner from 9 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $372.
General payments to Nancy Warner by program year, 2024 to 2025
Companies that paid Nancy Warner the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Nancy E. Warner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Nancy E. Warner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Nancy E. Warner's NPI number?
Nancy E. Warner's NPI number is 1528088820. It was assigned on July 20, 2006, and it is active in the NPI Registry.
What does Nancy E. Warner specialize in?
Nancy E. Warner is a family nurse practitioner in Ventura, California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Nancy E. Warner practice?
Nancy Warner practices at 147 N Brent St, Ventura, CA 93003. Nancy Warner's primary practice is Community Memorial Hospital San Buenaventura in Ventura, California. Dmand AI also links Nancy Warner to 1 group practice or clinic.
What is Nancy E. Warner's office phone number?
The practice phone on file for Nancy Warner is (805) 652-5011.
What is Nancy E. Warner's medical license number?
Nancy Warner holds California license RN275223.
What medical group is Nancy E. Warner part of?
Nancy Warner is linked to Riviera Health Group.
Does Nancy E. Warner accept Medicare?
Yes. CMS lists Nancy Warner as accepting Medicare assignment.
What drugs does Nancy E. Warner prescribe most?
In 2024 Medicare Part D data, Nancy Warner's most prescribed drugs by claims were Atorvastatin Calcium.
Has Nancy E. Warner received payments from drug or device companies?
CMS Open Payments shows $1,521 in general payments to Nancy Warner from 9 companies from 2024 to 2025. The largest total came from Amgen Inc.
How long has Nancy E. Warner been practicing?
Nancy Warner graduated from medical school in 1978, 48 years ago.
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