JOSE R CASTELLANOS MD
NPI 1245790377
Internal Medicine in Chicago, IL
About Jose R Castellanos Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSE R CASTELLANOS MD (NPI 1245790377) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036.160944) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Palos Community Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Jose R Castellanos Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Jose Castellanos reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 1,664 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Palos Community Hospital
Acute Care Hospitals · Palos Heights, ILNorthwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60611 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Jose Castellanos's NPI number?
The NPI number for Jose Castellanos is 1245790377. It was assigned to this individual provider in the NPPES registry on March 24, 2019.
Where is Jose Castellanos located?
Jose Castellanos practices at 303 E Superior St Fl 5, Chicago, IL 60611. The listed phone number is (312) 908-8163.
What is Jose Castellanos's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jose Castellanos enrolled in Medicare?
Yes. Jose Castellanos is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Jose Castellanos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jose Castellanos reassigns Medicare benefits to 2 organizations: Central Dupage Physician Group (Carol Stream, IL) and Northwestern Medical Faculty Foundation (Carol Stream, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jose Castellanos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Jose Castellanos affiliated with any hospitals?
According to CMS data, Jose Castellanos is affiliated with Palos Community Hospital and Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Jose Castellanos was last updated on May 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Jose R Castellanos, MD · NPI 1245790377
Internal Medicine physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since March 24, 2019.
## Identity
- **NPI:** 1245790377 (Entity type: Individual)
- **Enumerated:** March 24, 2019
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 036.160944 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 303 E SUPERIOR ST FL 5, Chicago, IL 60611-3015
- **Phone:** (312) 908-8163
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Central Dupage Physician Group (NPI 1033149844, Carol Stream, IL); Northwestern Medical Faculty Foundation (NPI 1346235314, Carol Stream, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 2019
## Record status
- **NPPES last updated:** May 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1245790377) · Data from the CMS NPPES public registry.