Carcinoma, Renal CellDNA MethylationEpigenesis, Genetic
Dr. Erik Peter Castle, MD
NPI1235221078PAC ID9638149917
- Medicare services, 2024
- 282
- Medicare patients, 2024
- 133
- Part D claims, 2024
- 211
- Publications
- 56
- Clinical trials
- 2
- Practice address
- 501 Keyser Ave, Natchitoches, LA 71457
- Practice phone
- Call (318) 214-4200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Castle's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Erik Peter Castle is a urologist in Natchitoches, Louisiana
Dr. Castle practices at Natchitoches Regional Medical Center in Natchitoches, Louisiana, part of Natchitoches Regional Medical Center.
Dr. Castle's NPI, 1235221078, was assigned on September 29, 2006. Dr. Castle graduated from University of Texas Southwestern Medical School at Dallas in 1998. Dr. Castle holds Louisiana license 323671.
NPI and contact details
- NPI
- 1235221078NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638149917
- NPI enumeration date
- September 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (318) 214-4200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Erik Peter Castle practices at Natchitoches Regional Medical Center in Natchitoches, Louisiana
Dr. Castle's primary practice is Natchitoches Regional Medical Center, at 501 Keyser Ave, Natchitoches, LA 71457 in Natchitoches Parish. The practice phone is (318) 214-4200.
- Natchitoches Regional Medical Center501 Keyser Ave, Natchitoches, LA 71457 · Natchitoches ParishPhone(318) 214-4200
Source: Dmand AI Affiliation Data
Dr. Erik Peter Castle is affiliated with 4 sites of care and 2 medical groups
Dr. Castle's primary practice is Natchitoches Regional Medical Center in Natchitoches, Louisiana, part of Natchitoches Regional Medical Center. Dr. Castle is also affiliated with Louisiana Extended Care Hospital of Natchitoches. The medical group on file is NRMC General Surgery Associates. Dmand AI also links Dr. Castle to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.
Louisiana Extended Care Hospital of NatchitochesNRMC General Surgery Associates1 hospitalName with a free account1 group practice or clinicName with a free account1 medical groupName with a free account
See all 6 affiliations for Dr. CastleSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Erik Peter 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.
| Site | EHR vendor and product |
|---|---|
| Natchitoches Regional Medical Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Natchitoches Regional Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Erik Peter Castle is one of 179 urologists in Louisiana
Urology is Dr. Castle's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dmand AI has Dr. Castle's licenses on file in 2 states: Louisiana and Arizona.
Specialties and state licenses
- Urology, LouisianaPrimary
- Arizona license
Urologists near Dr. Castle
Counts of urologists 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. Erik Peter Castle billed Medicare for 282 services in 2024
CMS data shows 282 Medicare services from Dr. Castle across 8 procedure codes in 2024, for 133 Medicare patients. Medicare paid $16,195 for them.
Medicare services, 2024282
Medicare patients133
Paid by Medicare$16,195
Procedure codes8
Dr. Castle's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Office and hospital visits
- 2022: 452024: 187316%
- Surgery
- 2022: 242024: 74208%
- Other services
- 2022: 02024: 21
Where Dr. Castle's Medicare services took place, 2024
- In an office155%
- In a facility26795%
Dr. Castle compared with the Louisiana median for urologists, 2024
- Dr. Castle
- Louisiana median
- Medicare services
- 282vs 95671% below
- Medicare patients
- 133vs 30657% below
- Part D claims
- 133vs 1,12188% below
Medians across 182 urologists in Louisiana 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.
Need commercial claims for Dr. Castle?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Castle and other urologists in Louisiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Erik Peter Castle treated 133 Medicare patients in 2024, average age 75
CMS counts 133 Medicare patients who saw Dr. Castle in 2024. The largest group is 65 to 74, with 51 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.60, 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 35% women.
Medicare patients, 2024133
Average age75
Average risk score1.60
Also on Medicaid24%
Dr. Castle's Medicare patients by age, 2024
Dr. Castle's Medicare patients by sex, 2024
- Women4735%
- Men8665%
Chronic conditions among Dr. Castle's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Diabetes43%
- Chronic kidney disease35%
- Ischemic heart disease35%
- Mood disorders32%
- Depression31%
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
- Women35%
- Men62%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Erik Peter Castle wrote 211 Medicare Part D claims in 2024
In 2024, Dr. Castle wrote 211 Medicare Part D claims for 100 patients. 94% of them were for generic drugs. CMS names the drug for 133 of them, across 6 drugs with 11 or more claims each, at $1,270 in total drug cost. In 2021, CMS named 29 claims across 2 drugs.
Part D claims, 2024211
Drugs named by CMS6
Total drug cost$1,270
Part D patients100
Dr. Castle's Part D claims by kind of drug, 2024
- Generic199 claims94%
- Brand-name and other12 claims6%
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
- Opioids12%26 of 211 claims
- Antibiotics47%99 of 211 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2021 to 2024
- 2021
- 2024
- Claims for drugs CMS names
- 2021: 292024: 133359%
Drugs named by CMS: 6 in 2024, 2 in 2021.
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. Erik Peter Castle ranks in the 83rd percentile for prostate resection in Medicare
Dr. Castle accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 21 procedures of prostate resection by Dr. Castle, more than 83% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Castle ranks in Medicare procedure volume
- Prostate resection
- 83rd percentile21 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Erik Peter Castle has 56 publications on record
Dmand AI links 56 papers to Dr. Castle, published from 2013 to 2023. 2015 was the busiest year, with 11. The most frequent topics are Robotic Surgical Procedures, Kidney Neoplasms and Urinary Bladder Neoplasms. Dr. Castle has published most often in Urology. Dr. Castle's most frequent co-authors are Haidar Abdul-Muhsin, MBCHB, Thai Huu Ho, MD, PhD and Mitchell R. Humphreys, MD.
Papers56
Years published2013 to 2023
Dr. Castle's papers by year, 2014 to 2023
Topics Dr. Castle writes about most
- Robotic Surgical Procedures
- Kidney Neoplasms
- Urinary Bladder Neoplasms
- Cystectomy
- Carcinoma, Renal Cell
- Postoperative Complications
- Lymph Node Excision
- Nephrectomy
Dr. Castle's most frequent co-authors
- Haidar Abdul-Muhsin, MBCHB14 shared papers
- Thai Huu Ho, MD, PhD11 shared papers
- Mitchell R. Humphreys, MD11 shared papers
Recent publications by Dr. Castle
Activities of Daily LivingCystectomyPatient Reported Outcome Measures
Carcinoma, EmbryonalEjaculationEndodermal Sinus Tumor
Biomarkers, TumorCarcinoma, Renal CellDNA Methylation
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 urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Erik Peter Castle has worked on 2 clinical trials
Dmand AI links Dr. Castle to 2 clinical trials. Conditions studied include Carcinoma, Renal Cell and Kidney Neoplasms. Mayo Clinic sponsors the most, 2.
Conditions in Dr. Castle's trials
- Carcinoma, Renal Cell
- Kidney Neoplasms
Recent clinical trials with Dr. Castle
Carcinoma, Renal CellKidney Neoplasms
Neoadjuvant Treatment of Prostate Cancer With Bicalutamide and Raloxifene Prior to Radical Prostatectomy (opens in a new tab)
WithdrawnPhase 2
BicalutamideRaloxifene Hydrochloride
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Erik Peter Castle received $12,195 in industry payments from 2016 to 2025
CMS Open Payments shows 40 general payments to Dr. Castle from 17 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 46% of the total. Sanofi and Genzyme US Companies paid the most, $5,832.
General payments to Dr. Castle by program year, 2016 to 2025
General payments to Dr. Castle by kind, 2016 to 2025
$12.2Kin total
- Consulting fees$5,66946%
- Speaker and faculty fees$5,00041%
- Food and beverage$1,21810%
- Travel and lodging$2182%
- Education$901%
Companies that paid Dr. Castle the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Erik Peter Castle graduated from University of Texas Southwestern Medical School at Dallas
Dr. Castle graduated from University of Texas Southwestern Medical School at Dallas in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Erik Peter Castle'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Dr. Erik Peter 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. Erik Peter Castle's NPI number?
Dr. Erik Peter Castle's NPI number is 1235221078. It was assigned on September 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Erik Peter Castle?
Dr. Erik Peter Castle is a urologist in Natchitoches, Louisiana. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Erik Peter Castle practice?
Dr. Castle practices at 501 Keyser Ave, Natchitoches, LA 71457. Dr. Castle's primary practice is Natchitoches Regional Medical Center in Natchitoches, Louisiana, part of Natchitoches Regional Medical Center. Dmand AI also links Dr. Castle to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Erik Peter Castle's office phone number?
The practice phone on file for Dr. Castle is (318) 214-4200.
What is Dr. Erik Peter Castle's medical license number?
Dr. Castle holds Louisiana license 323671, one of the licenses on file in 2 states.
Which states has Dr. Erik Peter Castle been licensed in?
Dmand AI has state licenses on file for Dr. Castle in Louisiana and Arizona.
Which hospitals is Dr. Erik Peter Castle affiliated with?
Dr. Castle practices at Natchitoches Regional Medical Center in Natchitoches, Louisiana. Dr. Castle is also affiliated with Louisiana Extended Care Hospital of Natchitoches. Dmand AI links Dr. Castle to 1 more hospital.
What medical group is Dr. Erik Peter Castle part of?
Dr. Castle is linked to NRMC General Surgery Associates. Dmand AI links Dr. Castle to 1 more medical group.
Does Dr. Erik Peter Castle accept Medicare?
Yes. CMS data shows Dr. Castle billed Medicare for 282 services in 2024, and Dr. Castle accepts Medicare assignment.
How many Medicare patients does Dr. Erik Peter Castle see?
CMS counts 133 Medicare patients who saw Dr. Castle in 2024, with an average age of 75.
Show 7 more questionsShow fewer questions
What services does Dr. Erik Peter Castle bill to Medicare?
In 2024, Dr. Castle's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99204) and surgery: urinary system (52000).
Where did Dr. Erik Peter Castle go to medical school?
Dr. Castle graduated from University of Texas Southwestern Medical School at Dallas in 1998.
What drugs does Dr. Erik Peter Castle prescribe most?
In 2024 Medicare Part D data, Dr. Castle's most prescribed drugs by claims were Levofloxacin, Sulfamethoxazole-Trimethoprim and Alfuzosin HCl ER.
Has Dr. Erik Peter Castle received payments from drug or device companies?
CMS Open Payments shows $12,195 in general payments to Dr. Castle from 17 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Erik Peter Castle been practicing?
Dr. Castle graduated from medical school in 1998, 28 years ago.
Does Dr. Erik Peter Castle do research?
Dmand AI links 56 publications to Dr. Castle, published from 2013 to 2023. Dr. Castle has worked on 2 clinical trials.
Who does Dr. Erik Peter Castle publish with?
Dr. Castle's most frequent co-authors are Haidar Abdul-Muhsin, MBCHB (14 shared papers), Thai Huu Ho, MD, PhD (11 shared papers) and Mitchell R. Humphreys, MD (11 shared papers).
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