Cathy O'Brien, MSW
NPI 1639592355 · Clinical Social Worker · Rogers City, MI
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cathy O'Brien, MSW is a Clinical Social Worker provider in Rogers City, MI (NPI 1639592355).
Provider details
- NPI number
- 1639592355
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- No
- License
- 6801093174 (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
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2014-01-31
- Last updated
- 2026-02-04
- Certified
- 2026-02-04
Frequently asked questions
- What is Cathy O'Brien's NPI number?
- Cathy O'Brien's National Provider Identifier (NPI) is 1639592355, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cathy O'Brien's specialty?
- Cathy O'Brien is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Cathy O'Brien located?
- Cathy O'Brien's practice location on file with NPPES is 532 W Erie St, Rogers City, MI 49779-1635.
- What is Cathy O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Cathy O'Brien is (989) 734-5098.
- Does Cathy O'Brien accept Medicare?
- Cathy O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cathy O'Brien's NPI active?
- Yes — Cathy O'Brien's NPI (1639592355) is active in the NPPES registry as of the last update on 2026-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.