Marlene Joyce Ruff, MA
Individual provider Active NPI Marriage & Family Therapist · Sioux Falls, SD
NPI 1659356459 · NPPES record last updated Jul 13, 2026
Key facts
- NPI
- 1659356459
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Marriage & Family Therapist 106H00000X
- License
- LMFT1164QMHP (SD)
- Practice address
- 625 S Minnesota Ave
#201
Sioux Falls, SD 57104-4871 - Phone
- (605) 334-7713
- Fax
- (605) 334-5348
- NPI assigned
- Dec 14, 2005
- Sex
- Female
- Sole proprietor
- No
Organizations & group practices 1
Medicare participation
- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
- Medicare enrollment (NPD)
- No
- Credentials
- Master of Arts
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| LPC699 | SD | MD | Mental Health Counselor |
| LMFT1164QMHP | SD | MD | Marriage & Family Therapist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Stronghold Counseling Services Inc | Past | Accepting new patients |
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Mental Health Counselor | 101YM0800X | LPC699 | SD | |
| Marriage & Family Therapist | 106H00000X | LMFT1164QMHP | SD | Yes |
Addresses
Primary practice location
625 S Minnesota Ave
#201
Sioux Falls, SD 57104-4871
Mailing address
625 S Minnesota Ave
#201
Sioux Falls, SD 57104-4871
Phone (605) 334-7713
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 4996167 | Other | SD | BCBS |
Other providers in Sioux Falls, SD
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- Jason Ruckelshausen
- Jeanne K Rud
- Emily Rude
- Marilyn F Ruhlman
- Eric Rupe
- Anthony Jerome Rupp
- Christine Rupp
- Michael Ruppelt
All providers in Sioux Falls, SD · Marriage & Family Therapist in South Dakota
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Jul 13, 2026. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.