Sean Ostendorf
NPI 1861072845 · Mental Health Counselor · Waterloo, IA
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Ostendorf is a Mental Health Counselor provider in Waterloo, IA (NPI 1861072845).
Provider details
- NPI number
- 1861072845
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
5 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2021-04-13
- Last updated
- 2023-02-15
- Certified
- 2023-02-15
Frequently asked questions
- What is Sean Ostendorf's NPI number?
- Sean Ostendorf's National Provider Identifier (NPI) is 1861072845, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Ostendorf's specialty?
- Sean Ostendorf is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Sean Ostendorf located?
- Sean Ostendorf's practice location on file with NPPES is 3261 University Ave, Waterloo, IA 50701-2051.
- What is Sean Ostendorf's phone number?
- The practice phone number listed in the NPPES registry for Sean Ostendorf is (800) 531-4236.
- Does Sean Ostendorf accept Medicare?
- Sean Ostendorf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Ostendorf's NPI active?
- Yes — Sean Ostendorf's NPI (1861072845) is active in the NPPES registry as of the last update on 2023-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.