Active NPI
Hayley Mesmer
- Physical Therapist
- Leonardtown, MD
National Provider Identifier
1104549377
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physical Therapist
- License
- 053237
- Practice address
- 25500 Point Lookout Rd
Leonardtown, MD 20650-2015 - Phone
- (301) 475-6062
- NPI assigned
- Sep 22, 2022
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physical Therapist | 225100000X | 29569 | MD | |
| Physical Therapist | 225100000X | 053237 | NY | Primary |
Addresses
Primary practice location
25500 Point Lookout Rd
Leonardtown, MD 20650-2015
Mailing address
46002 Rolling Rd
Lexington Park, MD 20653-6331
Phone (301) 247-9251
Other practice location 1
23415 Three Notch Rd
California, MD 20619-4017
Phone (240) 530-8188
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 |
|---|---|---|---|
| 29569 | MD | MD | Physical Therapist |
| 053237 | NY | MD | Physical Therapist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1663804800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1743120000000",
"number": "1104549377",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "46002 ROLLING RD",
"city": "LEXINGTON PARK",
"state": "MD",
"postal_code": "206536331",
"telephone_number": "301-247-9251"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "25500 POINT LOOKOUT RD",
"city": "LEONARDTOWN",
"state": "MD",
"postal_code": "206502015",
"telephone_number": "301-475-6062"
}
],
"practiceLocations": [
{
"address_1": "23415 Three Notch Rd",
"address_purpose": "LOCATION",
"city": "California",
"state": "MD",
"postal_code": "206194017",
"country_code": "US",
"telephone_number": "240-530-8188",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "MESMER",
"first_name": "HAYLEY",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2022-09-22",
"last_updated": "2025-03-28",
"certification_date": "2025-03-28",
"status": "A"
},
"taxonomies": [
{
"code": "225100000X",
"taxonomy_group": "",
"desc": "Physical Therapist",
"state": "MD",
"license": "29569",
"primary": false
},
{
"code": "225100000X",
"taxonomy_group": "",
"desc": "Physical Therapist",
"state": "NY",
"license": "053237",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Leonardtown, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 28, 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.