Active NPI
Ruth Mack
- Counselor
- Lowell, MA
National Provider Identifier
1730128042
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Counselor
- Practice address
- 99 Church St
Lowell, MA 01852-2621 - Phone
- (978) 458-6282
- Fax
- (978) 441-9826
- NPI assigned
- Jun 5, 2006
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Counselor | 101Y00000X | Primary |
Addresses
Primary practice location
99 Church St
Lowell, MA 01852-2621
Mailing address
10 Pleasant Ave
Chelmsford, MA 01824-3214
Phone (978) 454-3343
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20241112001138 | MA | Practitioner - Mental Health Counselor | 5991239048 | Practice locations: Chelmsford, MA |
Care Compare profile
Medicare Care Compare- Specialty
- Mental Health Counselor
- Education
- Other, 1971
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
Practice addresses (Care Compare)
10 Billerica Rd
Chelmsford, MA 01824-3011
Phone (978) 821-6587
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1149465600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1730128042",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "10 PLEASANT AVE",
"city": "CHELMSFORD",
"state": "MA",
"postal_code": "018243214",
"telephone_number": "978-454-3343"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "99 CHURCH ST",
"city": "LOWELL",
"state": "MA",
"postal_code": "018522621",
"telephone_number": "978-458-6282",
"fax_number": "978-441-9826"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MACK",
"first_name": "RUTH",
"name_prefix": "Mrs.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2006-06-05",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "101Y00000X",
"taxonomy_group": "",
"desc": "Counselor",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Lowell, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.