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DR. THOMAS WILLIAM ALLEN MD
NPI 1891900197
Psychiatry & Neurology - Psychiatry in Chicago, IL

Active since May 11, 2007PECOS Enrolled
446 E ONTARIO ST, 6-200, CHICAGO, IL 60611(312) 926-8638(312) 926-7960 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Thomas William Allen Md NPPES

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

DR. THOMAS WILLIAM ALLEN MD (NPI 1891900197) is an individual psychiatry provider in Chicago, Illinois and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891900197
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. THOMAS WILLIAM ALLENCredential: MD
Location Address446 E ONTARIO ST, 6-200Chicago, IL 60611-4418
Mailing Address431 W Oakdale Ave Apt 8cChicago, IL 60657-5956 · (773) 281-8426
Phone(312) 926-8638
Fax(312) 926-7960
Sole ProprietorYes
Enumeration DateMay 11, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1891900197 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
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.
446 E ONTARIO ST, Chicago, IL 60611
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Thomas William Allen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60611 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.

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.

DR. MICHAEL BROOK PH.D.
Clinical Neuropsychologist
446 E ONTARIO ST, SUITE 7-100
CHICAGO, IL 60611
Cook County (312) 695-5060
MISA KWON LCSW
Social Worker (Clinical)
446 E ONTARIO ST, SUITE 7-100
CHICAGO, IL 60611
Cook County (312) 695-5060
GAURAVA AGARWAL M.D.
Psychiatry & Neurology (Psychiatry)
446 E ONTARIO ST
CHICAGO, IL 60611
Cook County (312) 695-1920
DR. DOROTHY ANN VALIN APRN, CNS BC, PH.D.
Registered Nurse (Psychiatric/Mental Health, Adult)
446 E ONTARIO ST, NORTHWESTERN MEMORIAL HOSPITAL, SUITE 7-248
CHICAGO, IL 60611
Cook County (312) 926-3909
CHETAN AMAR M.D.
Student in an Organized Health Care Education/Training Program
446 E ONTARIO ST, 7-200
CHICAGO, IL 60611
Cook County (312) 926-8058
DIANE M MERKT
Physical Therapist
446 E ONTARIO ST
CHICAGO, IL 60611
Cook County (312) 926-3700
NORTHWESTERN MEDICAL FACULTY FOUNDATION
Psychiatric Unit
446 E ONTARIO ST
CHICAGO, IL 60611
Cook County (312) 695-2172
LAUREN WALKER OTR/L
Occupational Therapist (Mental Health)
446 E ONTARIO ST, SUITE 6-200
CHICAGO, IL 60611
Cook County (312) 926-8879

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 Thomas Allen's NPI number?

The NPI number for Thomas Allen is 1891900197. It was assigned to this individual provider in the NPPES registry on May 11, 2007.

Where is Thomas Allen located?

Thomas Allen practices at 446 E Ontario St 6-200, Chicago, IL 60611. The listed phone number is (312) 926-8638.

What is Thomas Allen's specialty?

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

Is Thomas Allen enrolled in Medicare?

Yes. Thomas Allen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Thomas Allen was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.