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DR. THANH SON THAI MD
NPI 1679739148
Psychiatry & Neurology - Psychiatry in Oak Park, IL

Active since August 04, 2008PECOS EnrolledAccepts Medicare Assignment
137 N OAK PARK AVE STE 209, OAK PARK, IL 60301(872) 216-2227(872) 228-8006 Get Directions Write a Review

NPPES record last updated: February 7, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Thanh Son Thai Md NPPES

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

DR. THANH SON THAI MD (NPI 1679739148) is an individual psychiatry provider in Oak Park, Illinois, licensed in Illinois (036123833) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS and is a graduate of Albany Medical College Of Union University (2006).

NPPES Registry Identity

NPI1679739148
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. THANH SON THAICredential: MD
Location Address137 N OAK PARK AVE STE 209Oak Park, IL 60301-1340
Mailing Address137 N Oak Park Ave Ste 209Oak Park, IL 60301-1340 · (872) 216-2227 · Fax (872) 228-8006
Phone(872) 216-2227
Fax(872) 228-8006
Sole ProprietorNo
Medical School CMSAlbany Medical College Of Union UniversityGraduated 2006
Enumeration DateAugust 4, 2008
Last NPPES UpdateFebruary 7, 2022
NPPES CertifiedFebruary 7, 2022
✔ NPI 1679739148 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in IL · 036123833
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
137 N OAK PARK AVE STE 209, Oak Park, IL 60301
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Other Identifiers 2

OtherIL3952004IL · Medicare Ptan
Medicaid036123833IL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thanh Son Thai Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9032303102
PECOS Enrollment IDI20101102001354
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Thanh Thai reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Thresholds
1.3 mi
Mental Health (Including Community Mental Health Center)
334 N MENARD AVE
Chicago, IL 60644
  • Reassigned Medicare billing, Illinois enrollment
  • 39 clinicians in this Medicare group
NPI 1336396860 (773) 572-5500
St Anthonys Memorial Hospital Of The Hospital Sisters Of The Third
195 mi
General Acute Care Hospital
503 N MAPLE ST
Effingham, IL 62401
  • Reassigned Medicare billing, Illinois enrollment
  • 104 clinicians in this Medicare group
NPI 1306800602 (217) 347-1333

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60301 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$183.39 typical visit price
range $60.08 – $183.39
Typical copayment $45.84 (range $15.02 – $45.84)
Most-billed visit code 99205
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Thanh Thai's NPI number?

The NPI number for Thanh Thai is 1679739148. It was assigned to this individual provider in the NPPES registry on August 4, 2008.

Where is Thanh Thai located?

Thanh Thai practices at 137 N Oak Park Ave Ste 209, Oak Park, IL 60301. The listed phone number is (872) 216-2227.

What is Thanh Thai's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Thanh Thai enrolled in Medicare?

Yes. Thanh Thai is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Thanh Thai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thanh Thai reassigns Medicare benefits to 2 organizations: The Thresholds (Chicago, IL) and St Anthonys Memorial Hospital Of The Hospital Sisters Of The Third (Effingham, IL). Each 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 Thanh Thai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Thanh Thai was last updated on February 7, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.