Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Peter W Castellanos, MD

Individual provider Neurology with Special Qualifications in Child Neurology Physician · NPI 1811991474

Peter W Castellanos, MD is a Neurology in Idaho Falls, Idaho. Graduated from University of Kansas School of Med (KC/WICH/SAL) in 1989, 37 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Idaho and Indiana.

Years since qualifying
37
Trained at
University of Kansas School of Med (KC/WICH/SAL)
Licensed in
ID, IN
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2225 Teton Plz Ste B
Idaho Falls, ID 83404-6494
Phone: (208) 529-4300
Fax: (208) 881-5121
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology with Special Qualifications in Child Neurology Physician (primary) Taxonomy 2084N0402X · Licence M10191 (ID)
Neurology with Special Qualifications in Child Neurology Physician Taxonomy 2084N0402X · Licence 01048179 (IN)

Record details

NPI number1811991474
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 10, 2005
Last updated in NPPESJuly 29, 2021
Certification dateJuly 29, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEUROLOGY
Medical schoolUNIVERSITY OF KANSAS SCHOOL OF MED (KC/WICH/SAL)
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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