SHELLI K REISS-THOMAS MS LLP
NPI 1922299767
Psychologist in Saginaw, MI

Active since August 07, 2007
3201 HALLMARK CT, SAGINAW, MI 48603(989) 790-5990(989) 790-5991 Get Directions Write a Review

NPPES record last updated: June 23, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Shelli K Reiss-thomas Ms Llp NPPES

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

SHELLI K REISS-THOMAS MS LLP (NPI 1922299767) is an individual psychologist in Saginaw, Michigan, licensed in Michigan (6301009280) and active in the NPI registry since August 2007.

NPPES Registry Identity

NPI1922299767
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameSHELLI K REISS-THOMASCredential: MS LLP
Location Address3201 HALLMARK CTSaginaw, MI 48603-2109
Mailing Address3785 Bay RdSaginaw, MI 48603-2433 · (989) 791-2455 · Fax (989) 791-1392
Fax(989) 790-5991
Sole ProprietorNo
Enumeration DateAugust 7, 2007
Last NPPES UpdateJune 23, 2026
NPPES CertifiedJune 23, 2026
✔ NPI 1922299767 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in MI · 6301009280
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
3201 HALLMARK CT, Saginaw, MI 48603

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Shelli K Reiss-thomas Ms Llp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Shelli Reiss-thomas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Psychologist
800 RAYMOND ST
Bay City, MI 48706
  • Reassigned Medicare billing, Michigan enrollment

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

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker (Clinical)
3201 HALLMARK CT
SAGINAW, MI 48603
Psychiatry & Neurology (Psychiatry)
3201 HALLMARK CT
SAGINAW, MI 48603
Psychiatry & Neurology (Psychiatry)
3201 HALLMARK CT
SAGINAW, MI 48603
Psychiatry & Neurology (Psychiatry)
3201 HALLMARK CT
SAGINAW, MI 48603
Psychiatry & Neurology (Psychiatry)
3201 HALLMARK CT
SAGINAW, MI 48603
Clinical Nurse Specialist (Psychiatric/Mental Health)
3201 HALLMARK CT
SAGINAW, MI 48603
Psychologist (Clinical)
3201 HALLMARK CT
SAGINAW, MI 48603
Psychiatry & Neurology (Psychiatry)
3201 HALLMARK CT
SAGINAW, MI 48603

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 Shelli Reiss-thomas's NPI number?

The NPI number for Shelli Reiss-thomas is 1922299767. It was assigned to this individual provider in the NPPES registry on August 7, 2007.

Where is Shelli Reiss-thomas located?

Shelli Reiss-thomas practices at 3201 Hallmark Ct, Saginaw, MI 48603. The listed phone number is (989) 790-5990.

What is Shelli Reiss-thomas's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Shelli Reiss-thomas enrolled in Medicare?

Yes. Shelli Reiss-thomas is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Shelli Reiss-thomas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Shelli Reiss-thomas reassigns Medicare benefits to Shelli K. Reiss-Thomas Msllp PLLC (Bay City, MI). The 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 Shelli Reiss-thomas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Shelli Reiss-thomas accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list Shelli Reiss-thomas as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Shelli Reiss-thomas was last updated on June 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.