Samantha Walker, PA-C

  • Agoura Hills, CA
  • Physician assistant
NPI1396426086
Part D claims, 2024
369
Industry payments
$576
Affiliated sites
2
Medical groups
2
State license
1
Practice address
4301 Lost Hills Rd, Agoura Hills, CA 91301
Practice phone
Call (858) 668-3700
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Laboratory Corporation of America

Agoura Hills, California

See all 5 affiliations

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Samantha Walker is a physician assistant in Agoura Hills, California

Samantha Walker practices at Laboratory Corporation of America in Agoura Hills, California.

Samantha Walker's NPI, 1396426086, was assigned on July 26, 2023. Samantha Walker holds California license 63103.

NPI and contact details
NPI enumeration date
July 26, 2023
NPI status
Active
Practice phone
(858) 668-3700
Professional email
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Personal email
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Mobile number
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Sex
Female

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Samantha Walker practices at Laboratory Corporation of America in Agoura Hills, California

Samantha Walker's primary practice is Laboratory Corporation of America, at 4301 Lost Hills Rd, Agoura Hills, CA 91301 in Los Angeles County. The practice phone is (858) 668-3700.

  • Laboratory Corporation of America
    4301 Lost Hills Rd, Agoura Hills, CA 91301 · Los Angeles CountyPhone(858) 668-3700

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Samantha Walker is affiliated with 3 sites of care and 2 medical groups

Samantha Walker's primary practice is Laboratory Corporation of America in Agoura Hills, California. The medical group on file is Rural Health Network. Dmand AI also links Samantha Walker to 1 more group practice or clinic, 1 rural health clinic and 1 medical group, each named with a free account.

See all 5 affiliations for Samantha Walker

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Samantha Walker's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Samantha Walker practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Laboratory Corporation of AmericaAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Samantha Walker is one of 11,482 physician assistants in California

Physician assistant is Samantha Walker's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Samantha Walker is licensed in California.

Specialties and state licenses

  • Physician assistant, CaliforniaPrimaryLicense 63103 · taxonomy 363A00000X

Physician assistants near Samantha Walker

Counts of physician assistants 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

Samantha Walker's patients have a median age of 41

Across all payers, Dmand AI patient panel data puts Samantha Walker's median patient age at 41, with 82% women.

Samantha Walker's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 41

Patient panel by sex, all payers

  • Women82%
  • Men18%

Source: Dmand AI Patient Panel Data

Samantha Walker wrote 369 Medicare Part D claims in 2024

In 2024, Samantha Walker wrote 369 Medicare Part D claims for 122 patients. 91% of them were for generic drugs. CMS names the drug for 134 of them, across 9 drugs with 11 or more claims each, at $983 in total drug cost.

Part D claims, 2024369
Drugs named by CMS9
Total drug cost$983
Part D patients122

Samantha Walker's Part D claims by kind of drug, 2024

  • Generic334 claims91%
  • Brand-name and other35 claims9%

Samantha Walker'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 Samantha Walker's Part D claims, 2024

  • Antibiotics14%51 of 369 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 Samantha Walker

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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Samantha Walker received $576 in industry payments from 2024 to 2025

CMS Open Payments shows 19 general payments to Samantha Walker from 8 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 76% of the total. Medical Device Business Services, Inc. paid the most, $137.

General payments to Samantha Walker by program year, 2024 to 2025

General payments to Samantha Walker by kind, 2024 to 2025

$576in total
  • Food and beverage$43976%
  • Education$13724%

Companies that paid Samantha Walker the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Samantha Walker

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

Sources for Samantha Walker'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
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)
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 Samantha Walker

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Samantha Walker's NPI number?

Samantha Walker's NPI number is 1396426086. It was assigned on July 26, 2023, and it is active in the NPI Registry.

What does Samantha Walker specialize in?

Samantha Walker is a physician assistant in Agoura Hills, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Samantha Walker practice?

Samantha Walker practices at 4301 Lost Hills Rd, Agoura Hills, CA 91301. Samantha Walker's primary practice is Laboratory Corporation of America in Agoura Hills, California. Dmand AI also links Samantha Walker to 1 group practice or clinic, 1 rural health clinic and 1 medical group.

What is Samantha Walker's office phone number?

The practice phone on file for Samantha Walker is (858) 668-3700.

What is Samantha Walker's medical license number?

Samantha Walker holds California license 63103.

What medical group is Samantha Walker part of?

Samantha Walker is linked to Rural Health Network. Dmand AI links Samantha Walker to 1 more medical group.

What drugs does Samantha Walker prescribe most?

In 2024 Medicare Part D data, Samantha Walker's most prescribed drugs by claims were Azithromycin, Atorvastatin Calcium and Metformin HCl.

Has Samantha Walker received payments from drug or device companies?

CMS Open Payments shows $576 in general payments to Samantha Walker from 8 companies from 2024 to 2025. The largest total came from Medical Device Business Services, Inc.

How long has Samantha Walker been practicing?

Samantha Walker's NPI was assigned in 2023.

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