David Joseph Linzey, FNP-C

  • Thousand Oaks, CA
  • Family nurse practitioner
NPI1033827274PAC ID6103298393
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
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Personal email
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Mobile number
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Social profiles

Primary practice

Los Robles Regional Medical Center

Hospital · Thousand Oaks, California

See all 5 affiliations

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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 and contact details
Medicare PAC ID
6103298393
NPI enumeration date
November 7, 2022
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(805) 497-2727
Professional email
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Personal email
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Mobile number
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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.

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.

See all 5 affiliations for David Linzey

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.

EHR by site
SiteEHR vendor and product
Los Robles Regional Medical CenterAvailable with a free account
+1 more site and 2 medical groupsAvailable 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, CaliforniaPrimaryLicense 95022585 · taxonomy 363LF0000X

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.

Medicare services, 2024141
Medicare patients147
Paid by Medicare$11,265
Procedure codes3

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.

See all procedures by David Linzey

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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.

Medicare patients, 2024147
Average age73
Average risk score1.79
Also on Medicaid15%

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

  1. High cholesterol75%
  2. High blood pressure73%
  3. Arthritis55%
  4. Anxiety38%
  5. Mood disorders37%
  6. Depression35%
  7. Ischemic heart disease35%
  8. 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.

Part D claims, 2024148
Drugs named by CMS4
Total drug cost$286
Part D patients91

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.

See all prescribing by David Linzey

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.

See all payments to David Linzey

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for David Joseph Linzey's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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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