David Joseph Linzey, FNP-C
- Medicare services, 2024
- 141
- Medicare patients, 2024
- 147
- Part D claims, 2024
- 148
- Hospital affiliations
- 2
- Industry payments
- $210
- Practice address
- 215 W Janss Rd, Thousand Oaks, CA 91360
- Practice phone
- Call (805) 497-2727
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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David Joseph Linzey is a family nurse practitioner in Thousand Oaks, California
David Linzey practices at Los Robles Regional Medical Center in Thousand Oaks, California, part of HCA Healthcare.
David Linzey's NPI, 1033827274, was assigned on November 7, 2022. David Linzey holds California license 95022585.
- NPI
- 1033827274NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103298393
- NPI enumeration date
- November 7, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 497-2727
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
David Joseph Linzey practices at Los Robles Regional Medical Center in Thousand Oaks, California
David Linzey's primary practice is Los Robles Regional Medical Center, at 215 W Janss Rd, Thousand Oaks, CA 91360 in Ventura County. The practice phone is (805) 497-2727.
- Los Robles Regional Medical Center215 W Janss Rd, Thousand Oaks, CA 91360 · Ventura CountyPhone(805) 497-2727
Source: Dmand AI Affiliation Data
David Joseph Linzey is affiliated with 2 sites of care and 3 medical groups
David Linzey's primary practice is Los Robles Regional Medical Center in Thousand Oaks, California, part of HCA Healthcare. David Linzey is also affiliated with MountainView Hospital. The medical group on file is Team Physicians of California Medical Group Inc. Dmand AI also links David Linzey to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at David Joseph Linzey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where David Linzey practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Los Robles Regional Medical Center | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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David Joseph Linzey is one of 13,532 family nurse practitioners in California
Family is David Linzey's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. David Linzey is licensed in California.
Specialties and state licenses
- Family nurse practitioner, CaliforniaPrimary
Family nurse practitioners near David Linzey
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
David Joseph Linzey billed Medicare for 141 services in 2024
CMS data shows 141 Medicare services from David Linzey across 3 procedure codes in 2024, for 147 Medicare patients. Medicare paid $11,265 for them. Every service was in a facility, such as a hospital, rather than an office.
David Linzey compared with the California median for family nurse practitioners, 2024
- David Linzey
- California median
- Medicare services
- 141vs 23440% below
- Medicare patients
- 147vs 9063% above
- Part D claims
- 63vs 36083% below
Medians across 6,382 family nurse practitioners in California with Dmand AI profiles that report each measure.
David Linzey's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
David Joseph Linzey treated 147 Medicare patients in 2024, average age 73
CMS counts 147 Medicare patients who saw David Linzey in 2024. The largest group is 65 to 74, with 59 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 15% are also on Medicaid. Their average risk score is 1.79, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts David Linzey's median patient age at 38, with 50% women.
David Linzey's Medicare patients by age, 2024
David Linzey's Medicare patients by sex, 2024
- Women6947%
- Men7853%
Chronic conditions among David Linzey's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis55%
- Anxiety38%
- Mood disorders37%
- Depression35%
- Ischemic heart disease35%
- Diabetes30%
Share of Medicare patients with each condition. A patient can have several.
David Linzey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
David Joseph Linzey wrote 148 Medicare Part D claims in 2024
In 2024, David Linzey wrote 148 Medicare Part D claims for 91 patients. 95% of them were for generic drugs. CMS names the drug for 63 of them, across 4 drugs with 11 or more claims each, at $286 in total drug cost.
David Linzey's Part D claims by kind of drug, 2024
- Generic141 claims95%
- Brand-name and other7 claims5%
David Linzey'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 David Linzey's Part D claims, 2024
- Opioids16%23 of 148 claims
- Antibiotics31%46 of 148 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 David Joseph Linzey takes part in Medicare
David Linzey 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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David Joseph Linzey received $210 in industry payments from 2024 to 2025
CMS Open Payments shows 5 general payments to David Linzey from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $181.
General payments to David Linzey by program year, 2024 to 2025
Companies that paid David Linzey 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 David Joseph Linzey'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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 David Joseph Linzey
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is David Joseph Linzey's NPI number?
David Joseph Linzey's NPI number is 1033827274. It was assigned on November 7, 2022, and it is active in the NPI Registry.
What does David Joseph Linzey specialize in?
David Joseph Linzey is a family nurse practitioner in Thousand Oaks, California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does David Joseph Linzey practice?
David Linzey practices at 215 W Janss Rd, Thousand Oaks, CA 91360. David Linzey's primary practice is Los Robles Regional Medical Center in Thousand Oaks, California, part of HCA Healthcare. Dmand AI also links David Linzey to 2 medical groups.
What is David Joseph Linzey's office phone number?
The practice phone on file for David Linzey is (805) 497-2727.
What is David Joseph Linzey's medical license number?
David Linzey holds California license 95022585.
Which hospitals is David Joseph Linzey affiliated with?
David Linzey practices at Los Robles Regional Medical Center in Thousand Oaks, California. David Linzey is also affiliated with MountainView Hospital.
What medical group is David Joseph Linzey part of?
David Linzey is linked to Team Physicians of California Medical Group Inc. Dmand AI links David Linzey to 2 more medical groups.
Does David Joseph Linzey accept Medicare?
Yes. CMS data shows David Linzey billed Medicare for 141 services in 2024, and David Linzey accepts Medicare assignment.
How many Medicare patients does David Joseph Linzey see?
CMS counts 147 Medicare patients who saw David Linzey in 2024, with an average age of 73.
What services does David Joseph Linzey bill to Medicare?
In 2024, David Linzey's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).
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What drugs does David Joseph Linzey prescribe most?
In 2024 Medicare Part D data, David Linzey's most prescribed drugs by claims were Oxycodone-Acetaminophen, Ondansetron ODT and Azithromycin.
Has David Joseph Linzey received payments from drug or device companies?
CMS Open Payments shows $210 in general payments to David Linzey from 2 companies from 2024 to 2025. The largest total came from Abbvie Inc.
How long has David Joseph Linzey been practicing?
David Linzey graduated from medical school in 2022, 4 years ago.
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