Active NPI
Joshua Benjamin Ewen, M.D.
- Neurodevelopmental Disabilities Physician
- Chicago, IL
National Provider Identifier
1518013671
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Neurodevelopmental Disabilities Physician
- License
- 036167430
- Practice address
- 225 E Chicago Ave
Chicago, IL 60611-2991 - Phone
- (312) 227-6839
- NPI assigned
- Jan 25, 2007
- Last updated
- Jan 6, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Neurodevelopmental Disabilities Physician | 2084P0005X | 036167430 | IL | Primary |
| Pediatrics Physician | 208000000X | 036167430 | IL | |
| Neurology with Special Qualifications in Child Neurology Physician | 2084N0402X | 036167430 | IL | |
| Clinical Neurophysiology Physician | 2084N0600X | 036167430 | IL |
Addresses
Primary practice location
225 E Chicago Ave
Chicago, IL 60611-2991
Mailing address
225 E Chicago Ave
Chicago, IL 60611-2991
Phone (312) 227-6839
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: Yes
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 036167430 | IL | MD | Pediatrics Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Frederick Health Hospital Inc | Past | Accepting new patients |
Interoperability endpoints
- jewen8846@direct.kennedykrieger.org
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba Frederick Health Hospital
- General Acute Care Hospital
- Frederick, MD
- NPI 1538165527
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1169683200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1767657600000",
"number": "1518013671",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "225 E CHICAGO AVE",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606112991",
"telephone_number": "312-227-6839"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "225 E CHICAGO AVE",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606112991",
"telephone_number": "312-227-6839"
}
],
"practiceLocations": [],
"basic": {
"last_name": "EWEN",
"first_name": "JOSHUA",
"middle_name": "BENJAMIN",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2007-01-25",
"last_updated": "2026-01-06",
"certification_date": "2026-01-06",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0005X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Neurodevelopmental Disabilities",
"state": "IL",
"license": "036167430",
"primary": true
},
{
"code": "208000000X",
"taxonomy_group": "",
"desc": "Pediatrics",
"state": "IL",
"license": "036167430",
"primary": false
},
{
"code": "2084N0402X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Neurology with Special Qualifications in Child Neurology",
"state": "IL",
"license": "036167430",
"primary": false
},
{
"code": "2084N0600X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Clinical Neurophysiology",
"state": "IL",
"license": "036167430",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
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 Jan 6, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.