Theresa Maslan
Theresa Maslan is a provider specialising in Developmentally Disabled Services Day Training Agency in Frederick, MD, registered under NPI 1932042066. This provider registers 10 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 75 THOMAS JOHNSON DR, Frederick, MD 21702. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Day Training, Developmentally Disabled Services covers
These agencies are authorized to provide day habilitation services to developmentally disabled individuals who live in their homes. The function of day habilitation is to assist an individual to acquire and maintain those life skills that enable the individual to cope more effectively with the demands of independent living. Also to raise the level of the individual's physical, mental, social, and vocational functioning. NUCC Health Care Provider Taxonomy, code 251C00000X
All registered taxonomy codes
This provider registers 10 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 251C00000X | Developmentally Disabled Services Day Training Agency | — | MD | primary |
| 3747A0650X | Attendant Care Provider Attendant Care Provider | — | MD | |
| 3747P1801X | Personal Care Attendant Personal Care Attendant | — | MD | |
| 385H00000X | Respite Care | — | MD | |
| 106S00000X | Behavior Technician | — | MD | |
| 171M00000X | Case Manager/Care Coordinator | — | MD | |
| 251B00000X | Case Management Agency | — | MD | |
| 320900000X | Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility | — | MD | |
| 373H00000X | Day Training/Habilitation Specialist | — | MD | |
| 103K00000X | Behavior Analyst | — | MD |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1932042066 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 13, 2026 |
| Last updated | Apr 13, 2026 |
| Status | Active |
| Sole proprietor | No |
| Practice address |
75 THOMAS JOHNSON DR Frederick, MD 21702 (443) 821-1886 |
| Mailing address |
1307 FUTURITY ST Frederick, MD 21702 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 9 | 3 | 2 | 0 | 4 | 2 | 0 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 6 | 2 | 0 | 4 | 4 | 0 | 3 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.