Dr. James S. Castle, MD

  • Evanston, IL
  • Neurologist
NPI1992909667PAC ID2668552373
Medicare services, 2024
795
Medicare patients, 2024
306
Part D claims, 2024
2,291
Publications
7
Hospital affiliations
2
Practice address
2650 Ridge Ave, Evanston, IL 60201
Practice phone
Call (847) 570-2000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Evanston Hospital

Hospital · Evanston, Illinois

See all 7 affiliations

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Dr. James S. Castle is a neurologist in Evanston, Illinois

Dr. Castle practices at Evanston Hospital in Evanston, Illinois, part of Endeavor Health.

Dr. Castle's NPI, 1992909667, was assigned on June 14, 2007. Dr. Castle graduated from Yale School of Medicine in 2002. Dr. Castle holds Illinois license 036-120124.

NPI and contact details
Medicare PAC ID
2668552373
NPI enumeration date
June 14, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(847) 570-2000
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Male
Estimated age
50
Medical school graduation
2002

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

Dr. James S. Castle practices at Evanston Hospital in Evanston, Illinois

Dr. Castle's primary practice is Evanston Hospital, at 2650 Ridge Ave, Evanston, IL 60201 in Cook County. The practice phone is (847) 570-2000.

  • Evanston Hospital
    2650 Ridge Ave, Evanston, IL 60201 · Cook CountyPhone(847) 570-2000

Source: Dmand AI Affiliation Data

Dr. James S. Castle is affiliated with 4 sites of care and 3 medical groups

Dr. Castle's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dr. Castle is also affiliated with Rush University Medical Center. The medical group on file is Rush University Internists. Dmand AI also links Dr. Castle to 2 more medical groups, 1 group practice or clinic and 1 home health agency, each named with a free account.

See all 7 affiliations for Dr. Castle

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. James S. Castle's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castle practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Evanston HospitalAvailable with a free account
+3 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. James S. Castle is one of 822 neurologists in Illinois

Neurology is Dr. Castle's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Castle is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Castle's licenses on file in 3 states: Illinois, California and Virginia.

Specialties and state licenses

  • Neurology, IllinoisPrimaryLicense 036-120124 · 2008 to 2026 · taxonomy 2084N0400X
  • Vascular neurology, CaliforniaLicense A93145 · Since 2005 · taxonomy 2084V0102X
  • Virginia license2002 to 2003

Clinical focus

Dmand AI lists acute mini-stroke (TIA), alzheimer's disease, cerebrovascular disease, epilepsy, head injury, lower back pain, migraine and chronic headache and muscle weakness among the conditions Dr. Castle treats.

Neurologists near Dr. Castle

Counts of neurologists 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. James S. Castle billed Medicare for 795 services in 2024

CMS data shows 795 Medicare services from Dr. Castle across 10 procedure codes in 2024, for 306 Medicare patients. Medicare paid $51,613 for them.

Medicare services, 2024795
Medicare patients306
Paid by Medicare$51,613
Procedure codes10

Dr. Castle's Medicare services by type, 2024

  1. Office and hospital visits470
  2. Other services325

Where Dr. Castle's Medicare services took place, 2024

  • In an office527%
  • In a facility74393%

Dr. Castle compared with the Illinois median for neurologists, 2024

  • Dr. Castle
  • Illinois median
Medicare services
795vs 40198% above
Medicare patients
306vs 22536% above
Part D claims
2,071vs 3186.5 times

Medians across 747 neurologists in Illinois with Dmand AI profiles that report each measure.

Dr. Castle'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 Dr. Castle

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. James S. Castle treated 306 Medicare patients in 2024, average age 74

CMS counts 306 Medicare patients who saw Dr. Castle in 2024. The largest group is 65 to 74, with 118 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 1.76, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Castle's median patient age at 71, with 60% women.

Medicare patients, 2024306
Average age74
Average risk score1.76
Also on Medicaid28%

Dr. Castle's Medicare patients by age, 2024

Dr. Castle's Medicare patients by sex, 2024

  • Women17958%
  • Men12742%

Chronic conditions among Dr. Castle's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis58%
  4. Alzheimer's and dementia43%
  5. Mood disorders41%
  6. Depression37%
  7. Ischemic heart disease36%
  8. Diabetes34%

Share of Medicare patients with each condition. A patient can have several.

Dr. 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 71

Patient panel by sex, all payers

  • Women60%
  • Men39%

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

Dr. James S. Castle wrote 2,291 Medicare Part D claims in 2024

In 2024, Dr. Castle wrote 2,291 Medicare Part D claims for 506 patients. 98% of them were for generic drugs. CMS names the drug for 2,071 of them, across 29 drugs with 11 or more claims each, at $71,389 in total drug cost.

Part D claims, 20242,291
Drugs named by CMS29
Total drug cost$71,389
Part D patients506

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

  • Generic2,243 claims98%
  • Brand-name48 claims2%

Dr. 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 Dr. Castle's Part D claims, 2024

  • Antipsychotics, patients 65 and over4%86 of 2,291 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 Dr. 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

Dr. James S. Castle offers telehealth to Medicare patients

Dr. Castle accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Castle as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. James S. Castle has 7 publications on record

Dmand AI links 7 papers to Dr. Castle, published from 2010 to 2019. 2011 was the busiest year, with 2. The most frequent topics are Diagnosis, Differential, Ischemic Attack, Transient and Stroke. Dr. Castle has published most often in Stroke. Dr. Castle's most frequent co-authors are Gregory W. Albers, MD, Maarten G. Lansberg, MD and Jean-Marc Olivot, MD, PhD.

Papers7
Years published2010 to 2019

Dr. Castle's papers by year, 2010 to 2019

Topics Dr. Castle writes about most

  • Diagnosis, Differential
  • Ischemic Attack, Transient
  • Stroke

Dr. Castle's most frequent co-authors

Recent publications by Dr. Castle

See all 7 publications and co-authors

See who Dr. Castle researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Castle works with, so you can find a warm path to the right neurologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. James S. Castle has 2 awards and honors on record

Dmand AI lists 2 awards for Dr. Castle, most recently Regional Top Doctor in 2014.

Awards and honors for Dr. Castle

  1. 2014
    • Regional Top Doctor
  2. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. James S. Castle graduated from Yale School of Medicine

Dr. Castle graduated from Yale School of Medicine in 2002. Dr. Castle is a member of AAN.

  1. Medical schoolYale School of Medicine
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology
  3. Board certified in vascular neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. James S. Castle accepts plans from 16 insurance carriers

Dr. Castle is in network with 16 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Cigna
  • HCSC
  • United Healthcare
  • Aetna
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • +8 more carriersWith a free account

Plan types Dr. Castle accepts, by number of carriers

  1. PPO11
  2. HMO8
  3. Medicare8
  4. POS6
  5. EPO3

Source: Dmand AI Insurance Network Data

Sources for Dr. James S. 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 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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 Dr. James S. 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 Dr. James S. Castle's NPI number?

Dr. James S. Castle's NPI number is 1992909667. It was assigned on June 14, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. James S. Castle?

Dr. James S. Castle is a neurologist in Evanston, Illinois. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. James S. Castle practice?

Dr. Castle practices at 2650 Ridge Ave, Evanston, IL 60201. Dr. Castle's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dmand AI also links Dr. Castle to 2 medical groups, 1 group practice or clinic and 1 home health agency.

What is Dr. James S. Castle's office phone number?

The practice phone on file for Dr. Castle is (847) 570-2000.

What is Dr. James S. Castle's medical license number?

Dr. Castle holds Illinois license 036-120124, one of the licenses on file in 3 states.

Which states has Dr. James S. Castle been licensed in?

Dmand AI has state licenses on file for Dr. Castle in Illinois (2008 to 2026), California (since 2005) and Virginia (2002 to 2003).

Which hospitals is Dr. James S. Castle affiliated with?

Dr. Castle practices at Evanston Hospital in Evanston, Illinois. Dr. Castle is also affiliated with Rush University Medical Center.

What medical group is Dr. James S. Castle part of?

Dr. Castle is linked to Rush University Internists. Dmand AI links Dr. Castle to 2 more medical groups.

Does Dr. James S. Castle accept Medicare?

Yes. CMS data shows Dr. Castle billed Medicare for 795 services in 2024, and Dr. Castle accepts Medicare assignment.

Does Dr. James S. Castle offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Castle as offering telehealth services.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. James S. Castle see?

CMS counts 306 Medicare patients who saw Dr. Castle in 2024, with an average age of 74.

Is Dr. James S. Castle board certified?

Yes. Dr. Castle is board certified in neurology by the American Board of Psychiatry and Neurology.

What services does Dr. James S. Castle bill to Medicare?

In 2024, Dr. Castle's most billed Medicare services were medicare service (G2211), office visit, established patient (99215) and office visit, established patient (99214).

Where did Dr. James S. Castle go to medical school?

Dr. Castle graduated from Yale School of Medicine in 2002.

What drugs does Dr. James S. Castle prescribe most?

In 2024 Medicare Part D data, Dr. Castle's most prescribed drugs by claims were Donepezil HCl, Memantine HCl and Sertraline HCl.

How long has Dr. James S. Castle been practicing?

Dr. Castle graduated from medical school in 2002, 24 years ago.

Does Dr. James S. Castle do research?

Dmand AI links 7 publications to Dr. Castle, published from 2010 to 2019.

Who does Dr. James S. Castle publish with?

Dr. Castle's most frequent co-authors are Gregory W. Albers, MD (2 shared papers), Maarten G. Lansberg, MD (2 shared papers) and Jean-Marc Olivot, MD, PhD (2 shared papers).

What insurance does Dr. James S. Castle accept?

Dr. Castle is in network with 16 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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