Anne C. Castle, PA

  • Fontana, CA
  • Physician assistant
NPI1669424206PAC ID4082676572
Medicare patients, 2024
15
Part D claims, 2024
447
Hospital affiliations
1
Industry payments
$43
Medical groups
3
Practice address
9961 Sierra Ave, Fontana, CA 92335
Practice phone
Call (909) 427-3910
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Fontana Medical Center

Fontana, California

See all 5 affiliations

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Anne C. Castle is a physician assistant in Fontana, California

Anne Castle practices at Fontana Medical Center in Fontana, California.

Anne Castle's NPI, 1669424206, was assigned on May 16, 2006. Anne Castle holds California license PA17545.

NPI and contact details
Medicare PAC ID
4082676572
NPI enumeration date
May 16, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(909) 427-3910
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
48
Medical school graduation
2004

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Anne C. Castle practices at Fontana Medical Center in Fontana, California

Anne Castle's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-3910.

  • Fontana Medical Center
    9961 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-3910

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

Anne C. Castle is affiliated with 2 sites of care and 3 medical groups

Anne Castle's primary practice is Fontana Medical Center in Fontana, California. Anne Castle is also affiliated with Orange County Global Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Anne Castle to 2 more medical groups, each named with a free account.

See all 5 affiliations for Anne Castle

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

Dmand AI tracks the EHR system at Anne C. Castle's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Anne Castle practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Fontana 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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Anne C. Castle is one of 11,482 physician assistants in California

Physician assistant is Anne Castle's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Anne Castle is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Anne Castle is licensed in California.

Specialties and state licenses

  • Physician assistant, CaliforniaPrimaryLicense PA17545 · taxonomy 363A00000X

Clinical focus

Dmand AI lists lower back pain among the conditions Anne Castle treats.

Physician assistants near Anne Castle

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

Anne C. Castle treated 15 Medicare patients in 2024, average age 60

CMS counts 15 Medicare patients who saw Anne Castle in 2024. The largest group is 75 to 84, with 0 patients. Their average risk score is 1.42, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Anne Castle's median patient age at 32, with 69% women.

Medicare patients, 202415
Average age60
Average risk score1.42

Anne Castle's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Anne Castle's patients across all payers

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

Patient panel by age, all payers

Median age 32

Patient panel by sex, all payers

  • Women69%
  • Men30%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Anne C. Castle wrote 447 Medicare Part D claims in 2024

In 2024, Anne Castle wrote 447 Medicare Part D claims for 320 patients. 92% of them were for generic drugs. CMS names the drug for 271 of them, across 12 drugs with 11 or more claims each, at $2,575 in total drug cost.

Part D claims, 2024447
Drugs named by CMS12
Total drug cost$2,575
Part D patients320

Anne Castle's Part D claims by kind of drug, 2024

  • Generic410 claims92%
  • Brand-name37 claims8%

Anne Castle'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 Anne Castle's Part D claims, 2024

  • Opioids7%33 of 447 claims
  • Antibiotics39%175 of 447 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 Anne Castle

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 Anne C. Castle takes part in Medicare

Anne Castle 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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Anne C. Castle received $43 in industry payments in 2024

CMS Open Payments shows 2 general payments to Anne Castle from 2 drug and device companies in 2024. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $22.

Companies that paid Anne Castle the most, 2024 to 2024

Share is of all general payments to this clinician.

See all payments to Anne Castle

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

Anne C. Castle is board certified in certified physician assistant

  1. Board certified in certified physician assistantNational Commission on Certification of Physician Assistants (NCCPA)

Source: Dmand AI Professional Profile Data

Sources for Anne C. Castle'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 DataDmand AI Org Hierarchy Data
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)
Training, board certification and membershipsDmand AI Professional Profile Data
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 Anne C. Castle

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

What is Anne C. Castle's NPI number?

Anne C. Castle's NPI number is 1669424206. It was assigned on May 16, 2006, and it is active in the NPI Registry.

What does Anne C. Castle specialize in?

Anne C. Castle is a physician assistant in Fontana, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Anne C. Castle practice?

Anne Castle practices at 9961 Sierra Ave, Fontana, CA 92335. Anne Castle's primary practice is Fontana Medical Center in Fontana, California. Dmand AI also links Anne Castle to 2 medical groups.

What is Anne C. Castle's office phone number?

The practice phone on file for Anne Castle is (909) 427-3910.

What is Anne C. Castle's medical license number?

Anne Castle holds California license PA17545.

Which hospitals is Anne C. Castle affiliated with?

Anne Castle is affiliated with Orange County Global Medical Center.

What medical group is Anne C. Castle part of?

Anne Castle is linked to Southern California Permanente Medical Group. Dmand AI links Anne Castle to 2 more medical groups.

Does Anne C. Castle accept Medicare?

Yes. CMS lists Anne Castle as accepting Medicare assignment.

How many Medicare patients does Anne C. Castle see?

CMS counts 15 Medicare patients who saw Anne Castle in 2024, with an average age of 60.

Is Anne C. Castle board certified?

Yes. Anne Castle is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).

Show 3 more questionsShow fewer questions

What drugs does Anne C. Castle prescribe most?

In 2024 Medicare Part D data, Anne Castle's most prescribed drugs by claims were Cephalexin, Azithromycin and Prednisone.

Has Anne C. Castle received payments from drug or device companies?

CMS Open Payments shows $43 in general payments to Anne Castle from 2 companies from 2024 to 2024. The largest total came from Boston Scientific Corporation.

How long has Anne C. Castle been practicing?

Anne Castle graduated from medical school in 2004, 22 years ago.

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