Active NPI
Matthew Lawser, M.A., A.G.S., NCSP
- Psychologist
- Adelphi, MD
National Provider Identifier
1003796798
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- CER-156858-J9S3W1
- Practice address
- 8908 Riggs Rd
Adelphi, MD 20783-1632 - Phone
- (301) 431-5630
- NPI assigned
- Sep 4, 2025
- 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 |
|---|---|---|---|---|
| Psychologist | 103T00000X | CER-156858-J9S3W1 | MD | Primary |
Addresses
Primary practice location
8908 Riggs Rd
Adelphi, MD 20783-1632
Mailing address
8908 Riggs Rd
Adelphi, MD 20783-1632
Phone (301) 431-5630
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 |
|---|---|---|---|
| CER-156858-J9S3W1 | MD | MD | Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1756944000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1756944000000",
"number": "1003796798",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "8908 RIGGS RD",
"city": "ADELPHI",
"state": "MD",
"postal_code": "207831632",
"telephone_number": "301-431-5630"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "8908 RIGGS RD",
"city": "ADELPHI",
"state": "MD",
"postal_code": "207831632",
"telephone_number": "301-431-5630"
}
],
"practiceLocations": [],
"basic": {
"last_name": "LAWSER",
"first_name": "MATTHEW",
"credential": "M.A., A.G.S., NCSP",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2025-09-04",
"last_updated": "2025-09-04",
"certification_date": "2025-09-04",
"status": "A"
},
"taxonomies": [
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "MD",
"license": "CER-156858-J9S3W1",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Adelphi, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 4, 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.