WILLIAM NIEHAUS – Counselor, NPI 1144328774

WILLIAM NIEHAUS is a healthcare provider. based in Indpls, Indiana. specializing in CLINICAL SOCIAL WORKER. They hold a License No. 34008980A (IN). The NPI Number for WILLIAM NIEHAUS is 1144328774

Main info

Male
12 Years Of Experience
Accepts Medicare Assignment
Name
WILLIAM NIEHAUS
NPI
1144328774
Phone
(317) 621-7533
Address
1525 N RITTER AVE
Enumeration Date
20 September 2006
Last Update Date
15 January 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
3176988748
Graduation Year
2014 (12 years ago)
PAC ID
1153732565
Group Practice PAC ID
8729443296
Professional Enrollment ID
I20230505001498
Address ID
IN461437746GR2343XRDXX300
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience67
Completeness75
Years active:19State licenses:1Digital endpointsOther names

1,711 CLINICAL SOCIAL WORKER in IN

Provider Addresses for WILLIAM NIEHAUS

  • 1525 N RITTER AVE

    INDPLS, IN 46219

    Phone: (317) 621-7533

    Type: Location

  • 6950 HILLSDALE COURT

    INDPLS, IN 46250

    Phone:

    Type: Mailing

  • 500 POLK ST STE 6G

    GREENWOOD, IN 461431647

    Phone: (317) 300-4214

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2023-05-05

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20230505001498IClinical Social WorkerINTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 46219)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8729443296View full group profile
NameSpecialtyState
Clinical Social WorkerIN
Clinical Social WorkerIN

Reviews

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Frequently asked questions

Does WILLIAM NIEHAUS share an NPI with anyone else?
NPI numbers are unique to each provider or organization — WILLIAM NIEHAUS uses 1144328774.
Does the file indicate WILLIAM NIEHAUS is practicing under active NPI?
Directory data currently reports WILLIAM NIEHAUS as active.
What is WILLIAM NIEHAUS's primary classification?
Counselor is the headline specialty for WILLIAM NIEHAUS here. Clinical services aligned with this taxonomy classification.
Does WILLIAM NIEHAUS list a practice location?
Patients near Indpls, Indiana may find WILLIAM NIEHAUS in results; validate coverage separately.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

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