IndividualActive
Maryann Siebert
NPI 1578612404 · Counselor · Appleton, WI
Maryann Siebert is a Counselor provider in Appleton, WI (NPI 1578612404).
Provider details
- NPI number
- 1578612404
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 3442-125 (WI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
444 N Westhill Blvd
Appleton, WI 54914-5715
Phone: (920) 380-4999
Street-level locationGet directions
Mailing address
Po Box 8003
Appleton, WI 54912-8003
Registry dates
- Enumerated
- 2007-01-09
- Last updated
- 2007-07-08
Frequently asked questions
- What is Maryann Siebert's NPI number?
- Maryann Siebert's National Provider Identifier (NPI) is 1578612404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maryann Siebert's specialty?
- Maryann Siebert is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Maryann Siebert located?
- Maryann Siebert's practice location on file with NPPES is 444 N Westhill Blvd, Appleton, WI 54914-5715.
- What is Maryann Siebert's phone number?
- The practice phone number listed in the NPPES registry for Maryann Siebert is (920) 380-4999.
- Is Maryann Siebert's NPI active?
- Yes — Maryann Siebert's NPI (1578612404) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.