Marianna Olson, LLMSW
NPI 1639852627 · Clinical Social Worker · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marianna Olson, LLMSW is a Clinical Social Worker provider in Ann Arbor, MI (NPI 1639852627).
Provider details
- NPI number
- 1639852627
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LLMSW
- Sex
- Female
- Sole proprietor
- No
- License
- 6851114158 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 518 N Division StAnn Arbor, MI 48104-1136Phone: (248) 579-8097
Registry dates
- Enumerated
- 2023-08-08
- Last updated
- 2023-08-08
- Certified
- 2023-08-08
Frequently asked questions
- What is Marianna Olson's NPI number?
- Marianna Olson's National Provider Identifier (NPI) is 1639852627, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marianna Olson's specialty?
- Marianna Olson is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Marianna Olson located?
- Marianna Olson's practice location on file with NPPES is 2020 Hogback Rd Ste 18, Ann Arbor, MI 48105-9752.
- What is Marianna Olson's phone number?
- The practice phone number listed in the NPPES registry for Marianna Olson is (517) 481-2133.
- Does Marianna Olson accept Medicare?
- Marianna Olson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marianna Olson's NPI active?
- Yes — Marianna Olson's NPI (1639852627) is active in the NPPES registry as of the last update on 2023-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.