Active NPI
Marissa Tabak, MSW, LCSW, LAC
- Clinical Social Worker
- Englewood, CO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- CSW.09925422
- Practice address
- 770 W Hampden Ave
Englewood, CO 80110-2121 - Phone
- (303) 565-5625
- NPI assigned
- Jul 3, 2019
- 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 |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | CSW.09925422 | CO | Primary |
| Addiction (Substance Use Disorder) Counselor | 101YA0400X | ACD.0002853 | CO |
Addresses
Primary practice location
770 W Hampden Ave
Englewood, CO 80110-2121
Mailing address
110 16TH St Ste 1460
Denver, CO 80202-5326
Phone (303) 565-5625
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 9000237275 | Medicaid | CO |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CO
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Clinical Social Worker
- Education
- Other, 2008
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
Practice addresses (Care Compare)
770 W Hampden Ave
Englewood, CO 80110-2121
Phone (303) 565-5625
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| ACD.0002853 | CO | MD | Addiction (Substance Use Disorder) Counselor |
| CSW.09925422 | CO | MD | Clinical Social Worker |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Arapahoe Mental Health Center, Inc | Current | Accepting new patients | |
| Arapahoe Mental Health Center, Inc | Current | Accepting new patients | |
| Shining Light Therapy, LLC | Addiction (Substance Use Disorder) | Current | Accepting new patients |
| A New Outlook Recovery Services, LLC | Addiction (Substance Use Disorder) | Past | Accepting new patients |
| A New Outlook Recovery Services, LLC | Past | Accepting new patients |
Locations
116 Inverness Dr E
Ste 105
Englewood, CO 80112
770 W Hampden Ave
Englewood, CO 80110
Phone (303) 565-5625
5524 S Prince St
Littleton, CO 80120
Phone (303) 730-0797
61 W Davies Ave N
Littleton, CO 80120
Phone (303) 797-9420
Organizations & group practices 5
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Clinical Social Worker
- Englewood, CO
- NPI 1083434534
Addiction (Substance Use Disorder)
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Parker, CO
- NPI 1437763968
-
- Substance Abuse Rehabilitation Facility
- Watkins, CO
- NPI 1710868609
-
- Community/Behavioral Health Agency
- Centennial, CO
- NPI 1245797505
-
- Substance Abuse Rehabilitation Facility
- Centennial, CO
- NPI 1699481952
Addiction (Substance Use Disorder)
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1562112000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1770940800000",
"number": "1528620192",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "110 16TH ST STE 1460",
"city": "DENVER",
"state": "CO",
"postal_code": "802025326",
"telephone_number": "303-565-5625"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "770 W HAMPDEN AVE",
"city": "ENGLEWOOD",
"state": "CO",
"postal_code": "801102121",
"telephone_number": "303-565-5625"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TABAK",
"first_name": "MARISSA",
"name_prefix": "Ms.",
"credential": "MSW, LCSW, LAC",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2019-07-03",
"last_updated": "2026-02-13",
"certification_date": "2026-02-13",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "CO",
"license": "CSW.09925422",
"primary": true
},
{
"code": "101YA0400X",
"taxonomy_group": "",
"desc": "Counselor, Addiction (Substance Use Disorder)",
"state": "CO",
"license": "ACD.0002853",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "9000237275",
"state": "CO"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Englewood, CO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 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.