William Niehaus
Clinical Social Worker · Greenwood, IN
William Niehaus is a clinical social worker with a practice address in Greenwood, Indiana, and NPI 1144328774, issued on Sep 20, 2006. Check the license (Indiana 34008980A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Niehaus
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 34008980A IN
Self-reported in NPPES; status is on the state search - Practice location
- 500 Polk St Ste 6G, Greenwood, IN 46143
- Phone
- (317) 300-4214
- Enumerated
- Sep 20, 2006
- Record last updated
- Jan 15, 2025
- Medicaid ID
- 100270530A IN
- Medicare enrollment
- Enrolled (PECOS I20230505001498); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 5,650 in Indiana → Look up another NPI →
Verify William Niehaus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 34008980ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Therapy Haus Behavioral Health, LLCGreenwood, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Niehaus among 5,650 clinical social worker records in Indiana
William Niehaus is one of 5,650 clinical social worker records with a practice address in Indiana. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 80% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileYes · 25% of these records are
- Graduated2014 · median 2012 among the 1,393 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
81 clinical social worker records list a practice address in Greenwood
They are 81 of the 2,362 NPPES records with a practice address in Greenwood, and 5,650 clinical social worker records in Indiana.
All 5,650 in Indiana → Every provider in Greenwood → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Vinnie Butler, LCSWGreenwood, IN 461431245295070
- Linda Childers, LCSWGreenwood, IN 461431376709212
- Marjorie Cline, LCSWGreenwood, IN 461431568632826
- Shaun Cutrell, LCSWGreenwood, IN 461431265678379
- Nicole Holland, LCSWGreenwood, IN 461431407900376
- Christina Jansing, LCSWGreenwood, IN 461431336311521
- Clinton Marsh, MSW,LSWGreenwood, IN 461431730393505
- Keith Parrish, LCSWGreenwood, IN 461431215063508
Common questions
What is William Niehaus's NPI number?
William Niehaus's National Provider Identifier (NPI) is 1144328774, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Niehaus located?
The NPPES record lists a practice address at 500 Polk St Ste 6G, Greenwood, IN, 46143. Phone: (317) 300-4214. Providers update this record themselves, so call before visiting.
How can I verify William Niehaus's license?
NPPES lists Indiana license number 34008980A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.