Dr. Dena Werner, MD
- Medicare services, 2023
- 217
- Part D claims, 2024
- 28
- Hospital affiliations
- 1
- Industry payments
- $1,302
- Medical groups
- 2
- Practice address
- 147 North Brent Street, 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
Find Dr. Werner'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.
Dr. Dena Werner is an internist in Ventura, California
Dr. Werner practices at Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare.
Dr. Werner's NPI, 1669758918, was assigned on November 1, 2011. Dr. Werner graduated from Royal College of Surgeons in Ireland - Medical University of Bahrain in 2011. Dr. Werner holds California license A127060.
- NPI
- 1669758918NPI Registry (opens in a new tab)
- NPI enumeration date
- November 1, 2011
- NPI status
- Active
- Practice phone
- (805) 652-5011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Dena Werner practices at Community Memorial Hospital - Ventura in Ventura, California
Dr. Werner's primary practice is Community Memorial Hospital - Ventura, at 147 North Brent Street, Ventura, CA 93003 in Ventura County. The practice phone is (805) 652-5011.
- Community Memorial Hospital - Ventura147 North Brent Street, Ventura, CA 93003 · Ventura CountyPhone(805) 652-5011
Source: Dmand AI Affiliation Data
Dr. Dena Werner is affiliated with 1 site of care and 2 medical groups
Dr. Werner's primary practice is Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare. The medical group on file is Ventura County Medical Center. Dmand AI also links Dr. Werner to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Dena Werner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Werner practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Memorial Hospital - Ventura | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Community Memorial Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Dena Werner is one of 16,751 internists in California
Internal medicine is Dr. Werner's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Werner is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Werner's licenses on file in 7 states: California, Florida, Kentucky, Louisiana, Virginia, Oklahoma and Texas.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Florida license
- Kentucky license
- Louisiana license
- Virginia license
- Oklahoma license
- Texas license
Clinical focus
Dmand AI lists acute skin infection, joint or bone infection, pneumonia and UTI among the conditions Dr. Werner treats.
Internists near Dr. Werner
Counts of internists 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
Dr. Dena Werner billed Medicare for 217 services in 2023
CMS data shows 217 Medicare services from Dr. Werner across 6 procedure codes in 2023. Medicare paid $19,059 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Werner's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1512023: 18422%
- Other services
- 2022: 02023: 33
Dr. Werner compared with the California median for internists, 2023
- Dr. Werner
- California median
- Medicare services
- 217vs 36140% below
- Part D claims
- 295vs 42130% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Werner's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Werner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Werner and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Dena Werner's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Werner's median patient age at 68, with 49% women.
Dr. Werner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women49%
- Men51%
Source: Dmand AI Patient Panel Data
Dr. Dena Werner wrote 28 Medicare Part D claims in 2024
In 2024, Dr. Werner wrote 28 Medicare Part D claims for 14 patients. 96% of them were for generic drugs. They cover 13 drugs, with $118,514 in total drug cost. In 2022, CMS named 604 claims across 23 drugs.
Dr. Werner's Part D claims by kind of drug, 2024
- Generic27 claims96%
- Brand-name and other1 claims4%
Dr. Werner's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 6042023: 29551%
Drugs named by CMS: 13 in 2023, 23 in 2022.
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
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Dr. Dena Werner received $1,302 in industry payments from 2016 to 2023
CMS Open Payments shows 15 general payments to Dr. Werner from 10 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 92% of the total. The Medicines Company paid the most, $347.
General payments to Dr. Werner by program year, 2016 to 2023
General payments to Dr. Werner by kind, 2016 to 2023
- Food and beverage$1,20392%
- Education$998%
Companies that paid Dr. Werner the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Dena Werner graduated from Royal College of Surgeons in Ireland - Medical University of Bahrain
Dr. Werner graduated from Royal College of Surgeons in Ireland - Medical University of Bahrain in 2011.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Dena Werner accepts plans from 5 insurance carriers
Dr. Werner is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
Plan types Dr. Werner accepts, by number of carriers
- Medicare5
- PPO5
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Dena Werner'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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 Dr. Dena Werner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Dena Werner's NPI number?
Dr. Dena Werner's NPI number is 1669758918. It was assigned on November 1, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Dena Werner?
Dr. Dena Werner is an internist in Ventura, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Dena Werner practice?
Dr. Werner practices at 147 North Brent Street, Ventura, CA 93003. Dr. Werner's primary practice is Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare. Dmand AI also links Dr. Werner to 1 medical group.
What is Dr. Dena Werner's office phone number?
The practice phone on file for Dr. Werner is (805) 652-5011.
What is Dr. Dena Werner's medical license number?
Dr. Werner holds California license A127060, one of the licenses on file in 7 states.
Which states has Dr. Dena Werner been licensed in?
Dmand AI has state licenses on file for Dr. Werner in California (2013 to 2027), Florida (2024 to 2026), Kentucky (2024 to 2026), Louisiana (2024 to 2026), Virginia (2024 to 2026), Oklahoma (2024 to 2025) and Texas (2024 to 2025).
Which hospitals is Dr. Dena Werner affiliated with?
Dr. Werner practices at Community Memorial Hospital - Ventura in Ventura, California.
What medical group is Dr. Dena Werner part of?
Dr. Werner is linked to Ventura County Medical Center. Dmand AI links Dr. Werner to 1 more medical group.
Does Dr. Dena Werner accept Medicare?
Yes. CMS data shows Dr. Werner billed Medicare for 217 services in 2023.
Is Dr. Dena Werner board certified?
Yes. Dr. Werner is board certified in infectious disease by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Dena Werner bill to Medicare?
In 2023, Dr. Werner's most billed Medicare services were office visit, established patient (99215), hospital inpatient care (99233) and medicare service (G2212).
Where did Dr. Dena Werner go to medical school?
Dr. Werner graduated from Royal College of Surgeons in Ireland - Medical University of Bahrain in 2011.
What drugs does Dr. Dena Werner prescribe most?
In 2023 Medicare Part D data, Dr. Werner's most prescribed drugs by claims were Atorvastatin Calcium, Fluconazole and Vancomycin HCl.
Has Dr. Dena Werner received payments from drug or device companies?
CMS Open Payments shows $1,302 in general payments to Dr. Werner from 10 companies from 2016 to 2023. The largest total came from The Medicines Company.
How long has Dr. Dena Werner been practicing?
Dr. Werner graduated from medical school in 2011, 15 years ago.
What insurance does Dr. Dena Werner accept?
Dr. Werner is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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