Active NPI
Marla Donahue Mach
- Clinical Nurse Specialist
- Washington, DC
National Provider Identifier
1740142660
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Nurse Specialist
- License
- 0019491
- Practice address
- 110 Irving St NW
Washington, DC 20010-3017 - Phone
- (937) 903-7959
- NPI assigned
- Dec 1, 2025
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Clinical Nurse Specialist | 364S00000X | 0019491 | OH | Primary |
Addresses
Primary practice location
110 Irving St NW
Washington, DC 20010-3017
Mailing address
110 Irving St NW
Washington, DC 20010-3017
Phone (937) 903-7959
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 0019491 | OH | MD | Clinical Nurse Specialist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1764547200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1764547200000",
"number": "1740142660",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "110 IRVING ST NW",
"city": "WASHINGTON",
"state": "DC",
"postal_code": "200103017",
"telephone_number": "937-903-7959"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "110 IRVING ST NW",
"city": "WASHINGTON",
"state": "DC",
"postal_code": "200103017",
"telephone_number": "937-903-7959"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MACH",
"first_name": "MARLA",
"middle_name": "DONAHUE",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2025-12-01",
"last_updated": "2025-12-01",
"certification_date": "2025-11-30",
"status": "A"
},
"taxonomies": [
{
"code": "364S00000X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Clinical Nurse Specialist",
"state": "OH",
"license": "0019491",
"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 Dec 1, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.