Active NPI
Katherine Rose Studer, DMSC, PA-C
- Physician Assistant
- Chicago, IL
National Provider Identifier
1952017857
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- 085009316
- Practice address
- 125 S Wacker Dr Ste 300
Chicago, IL 60606-4421 - Phone
- (617) 505-1520
- Fax
- (617) 928-8401
- NPI assigned
- Jan 25, 2023
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | 085009316 | IL | Primary |
Addresses
Primary practice location
125 S Wacker Dr Ste 300
Chicago, IL 60606-4421
Mailing address
109 State St.
5TH FL
Boston, MA 02109-2906
Phone (617) 505-1520
Other names 1
- Katherine Rose Castillo
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Care Compare profile
Medicare Care Compare- Specialty
- Physician Assistant
- Education
- Other, 2022
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
109 State St
Suite 5
Boston, MA 02109-2103
4400 Bayou Blvd
32B
Pensacola, FL 32503-2691
Hospital & facility affiliations
- Advocate Condell Medical Center
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 085009316 | IL | MD | Physician Assistant |
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Libertyville, IL
- NPI 1124272547
-
- Mobile Mammography Clinic/Center
- Grayslake, IL
- NPI 1770737199
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1674604800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1774483200000",
"number": "1952017857",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "109 STATE ST.",
"address_2": "5TH FL",
"city": "BOSTON",
"state": "MA",
"postal_code": "021092906",
"telephone_number": "617-505-1520",
"fax_number": "617-928-8401"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "125 S WACKER DR STE 300",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606064421",
"telephone_number": "617-505-1520",
"fax_number": "617-928-8401"
}
],
"practiceLocations": [],
"basic": {
"last_name": "STUDER",
"first_name": "KATHERINE",
"middle_name": "ROSE",
"credential": "DMSC, PA-C",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2023-01-25",
"last_updated": "2026-03-26",
"certification_date": "2026-03-26",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "IL",
"license": "085009316",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "KATHERINE",
"last_name": "CASTILLO",
"middle_name": "ROSE",
"credential": "DMSC, PA-C",
"code": "1",
"type": "Former Name"
}
]
}Other providers in Chicago, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 26, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.