1. Home
  2. Directory
  3. Iowa
  4. Waterloo
  5. Nurse Practitioner
  6. NPI Profile

NST BEHAVIORAL HEALTH (DBA), NEELAM SIDDIQ THOMAS PLC
NPI 1790429926
Nurse Practitioner - Psychiatric/Mental Health in Waterloo, IA

Active since April 25, 2022
531 COMMERCIAL ST STE 700, WATERLOO, IA 50701(515) 209-5009(319) 253-3954 Get Directions Write a Review

NPPES record last updated: March 14, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Nst Behavioral Health (dba), Neelam Siddiq Thomas Plc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NST BEHAVIORAL HEALTH (DBA), NEELAM SIDDIQ THOMAS PLC (NPI 1790429926) is a healthcare organization registered as a psychiatric/mental health in Waterloo, Iowa and active in the NPI registry since April 2022. The organization lists Neelam Siddiq Thomas, Arnp, as its authorized official.

NPPES Registry Identity

NPI1790429926
Entity TypeOrganization
Primary Taxonomy363LP0808X
Legal Business NameNEELAM SIDDIQ THOMAS PLC
Location Address531 COMMERCIAL ST STE 700Waterloo, IA 50701-5443
Mailing Address531 Commercial St Ste 700Waterloo, IA 50701-5443 · (515) 209-5009 · Fax (319) 540-8059
Phone(515) 209-5009
Fax(319) 253-3954
Organization SubpartNo
Authorized OfficialNeelam Siddiq ThomasArnp · (515) 209-5009
Enumeration DateApril 25, 2022
Last NPPES UpdateMarch 14, 2024
NPPES CertifiedOctober 16, 2023
✔ NPI 1790429926 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
531 COMMERCIAL ST STE 700, Waterloo, IA 50701
Open in Google Maps ↗

Other Names 2

Doing Business AsNst Behavioral Health (dba), Neelam Siddiq Thomas Plc
Doing Business AsNst Behavioral Health

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nst Behavioral Health (dba), Neelam Siddiq Thomas Plc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Nst Behavioral Health (dba), Neelam Siddiq Thomas Plc, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Neelam Thomas
Nurse Practitioner
NPI 1598311656
531 COMMERCIAL ST STE 700800
Waterloo, IA 50701
(515) 209-5009
✔ PECOSSame address
Billie Rael, PMHNP
Nurse Practitioner
NPI 1134712821
905 FRANKLIN ST
Waterloo, IA 50703
(319) 939-6099
✔ PECOS✔ Accepts Medicare0.6 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Neelam Siddiq Thomas Plc's NPI number?

The NPI number for Neelam Siddiq Thomas Plc is 1790429926. It was assigned to this organization in the NPPES registry on April 25, 2022. The provider is doing business as Nst Behavioral Health (dba), Neelam Siddiq Thomas Plc and NST Behavioral Health.

Where is Neelam Siddiq Thomas Plc located?

Neelam Siddiq Thomas Plc is located at 531 Commercial St Ste 700, Waterloo, IA 50701. The listed phone number is (515) 209-5009.

What is Neelam Siddiq Thomas Plc's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Neelam Siddiq Thomas Plc enrolled in Medicare?

Yes. Neelam Siddiq Thomas Plc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Neelam Siddiq Thomas Plc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Nurse Practitioner, reassign their Medicare billing to Neelam Siddiq Thomas Plc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Neelam Siddiq Thomas Plc was last updated on March 14, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.