Active NPI
Megan Elizabeth Diffendal, L.P.C.
- Professional Counselor
- Harrisburg, PA
National Provider Identifier
1992905111
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Professional Counselor
- License
- PC005546
- Practice address
- 2595 Interstate Dr Ste 103
Harrisburg, PA 17110-9378 - Phone
- (804) 904-5470
- NPI assigned
- Jul 25, 2007
- 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 |
|---|---|---|---|---|
| Professional Counselor | 101YP2500X | PC005546 | PA | Primary |
Addresses
Primary practice location
2595 Interstate Dr Ste 103
Harrisburg, PA 17110-9378
Mailing address
2595 Interstate Dr Ste 103
Harrisburg, PA 17110-9378
Phone (804) 904-5470
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 |
|---|---|---|---|
| PC005546 | PA | MD | Professional Counselor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1185321600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1771459200000",
"number": "1992905111",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2595 INTERSTATE DR STE 103",
"city": "HARRISBURG",
"state": "PA",
"postal_code": "171109378",
"telephone_number": "804-904-5470"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2595 INTERSTATE DR STE 103",
"city": "HARRISBURG",
"state": "PA",
"postal_code": "171109378",
"telephone_number": "804-904-5470"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DIFFENDAL",
"first_name": "MEGAN",
"middle_name": "ELIZABETH",
"credential": "L.P.C.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2007-07-25",
"last_updated": "2026-02-19",
"certification_date": "2026-02-19",
"status": "A"
},
"taxonomies": [
{
"code": "101YP2500X",
"taxonomy_group": "",
"desc": "Counselor, Professional",
"state": "PA",
"license": "PC005546",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Harrisburg, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 19, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.