Active NPI
Charles Willis Callahan, DO
- Pediatric Pulmonology Physician
- Washington, DC
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatric Pulmonology Physician
- License
- DOS719
- Practice address
- Walter Reed Army Medical Center
Washington, DC 20907-1234 - Phone
- (202) 782-8397
- Fax
- (202) 782-4914
- NPI assigned
- Oct 11, 2006
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Pediatric Pulmonology Physician | 2080P0214X | DOS719 | HI | Primary |
Addresses
Primary practice location
Walter Reed Army Medical Center
Washington, DC 20907-1234
Mailing address
13104 Collingwood Terrace
Silver Spring, MD 20904-1234
Phone (202) 782-8397
Other practice location 1
22 S Greene St
Baltimore, MD 21201-1544
Phone (667) 214-1916
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MD
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20151216000769 | MD | Practitioner - Pulmonary Disease | 5193711489 | Reassigns benefits to 1 organization |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| DOS719 | HI | MD | Pediatric Pulmonology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| University of Maryland Pediatric Assoc PA | Current | Accepting new patients | |
| University of Maryland Pediatric Associates, PA | Current | Accepting new patients | |
| University of Maryland Pediatric Associates, PA | Current | Accepting new patients |
Locations
22 S Greene St
Fl 5
Baltimore, MD 21201
Phone (410) 328-5887
22 S Greene St
Baltimore, MD 21201
Phone (410) 328-5793
12500 Willowbrook Rd
Cumberland, MD 21502
Phone (240) 964-1255
Interoperability endpoints
- ccallahan271386@direct.umm.edu
Organizations & group practices 3
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Pediatrics Physician
- Baltimore, MD
- NPI 1528163912
MD
-
- Pediatric Allergy/Immunology Physician
- Baltimore, MD
- NPI 1912002320
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Baltimore, MD
- NPI 1083933444
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1160524800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1696982400000",
"number": "1295823557",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "13104 COLLINGWOOD TERRACE",
"city": "SILVER SPRING",
"state": "MD",
"postal_code": "209041234",
"telephone_number": "202-782-8397",
"fax_number": "202-782-4914"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "WALTER REED ARMY MEDICAL CENTER",
"city": "WASHINGTON",
"state": "DC",
"postal_code": "209071234",
"telephone_number": "202-782-8397",
"fax_number": "202-782-4914"
}
],
"practiceLocations": [
{
"address_1": "22 S Greene St",
"address_purpose": "LOCATION",
"city": "Baltimore",
"state": "MD",
"postal_code": "212011544",
"country_code": "US",
"telephone_number": "667-214-1916",
"fax_number": "410-225-9405",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "CALLAHAN",
"first_name": "CHARLES",
"middle_name": "WILLIS",
"name_prefix": "Dr.",
"credential": "DO",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-10-11",
"last_updated": "2023-10-11",
"certification_date": "2023-10-11",
"status": "A"
},
"taxonomies": [
{
"code": "2080P0214X",
"taxonomy_group": "",
"desc": "Pediatrics, Pediatric Pulmonology",
"state": "HI",
"license": "DOS719",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Washington, DC
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 11, 2023; 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.