Active NPI
Katherine Elizabeth Tallmadge, MA, RDN
- Registered Dietitian
- Washington, DC
National Provider Identifier
1881584993
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Registered Dietitian
- License
- DI1178
- Practice address
- 2719 Poplar St NW
Washington, DC 20007-3150 - Phone
- (202) 436-5763
- NPI assigned
- Jul 9, 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 |
|---|---|---|---|---|
| Registered Dietitian | 133V00000X | DI1178 | DC | Primary |
Addresses
Primary practice location
2719 Poplar St NW
Washington, DC 20007-3150
Mailing address
5401 Westbard Ave Apt 1505
Bethesda, MD 20816-1422
Phone (202) 436-5763
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
- Credentials
- Master of Arts
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| DI1178 | DC | MD | Registered Dietitian |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1752019200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1752019200000",
"number": "1881584993",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5401 WESTBARD AVE APT 1505",
"city": "BETHESDA",
"state": "MD",
"postal_code": "208161422",
"telephone_number": "202-436-5763"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2719 POPLAR ST NW",
"city": "WASHINGTON",
"state": "DC",
"postal_code": "200073150",
"telephone_number": "202-436-5763"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TALLMADGE",
"first_name": "KATHERINE",
"middle_name": "ELIZABETH",
"name_prefix": "Ms.",
"credential": "MA, RDN",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2025-07-09",
"last_updated": "2025-07-09",
"certification_date": "2025-07-09",
"status": "A"
},
"taxonomies": [
{
"code": "133V00000X",
"taxonomy_group": "",
"desc": "Dietitian, Registered",
"state": "DC",
"license": "DI1178",
"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 Jul 9, 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.