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STEPHEN DINWIDDIE M.D.
NPI 1669590741
Psychiatry & Neurology - Psychiatry in Chicago, IL

Active since March 27, 2007PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
446 E ONTARIO ST, SUITE 7-100, CHICAGO, IL 60611(312) 695-5060 Get Directions Write a Review

NPPES record last updated: September 1, 2011. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Stephen Dinwiddie M.d. NPPES

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

STEPHEN DINWIDDIE M.D. (NPI 1669590741) is an individual psychiatry provider in Chicago, Illinois, licensed in Illinois (036094005) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS and is a graduate of Eastern Virginia Medical School (1982).

NPPES Registry Identity

NPI1669590741
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameSTEPHEN DINWIDDIECredential: M.D.
Location Address446 E ONTARIO ST, SUITE 7-100Chicago, IL 60611-4418
Mailing Address446 E Ontario St, Suite 7-100Chicago, IL 60611-4418 · (312) 695-5060
Phone(312) 695-5060
Sole ProprietorNo
Medical School CMSEastern Virginia Medical SchoolGraduated 1982
Enumeration DateMarch 27, 2007
Last NPPES UpdateSeptember 1, 2011
✔ NPI 1669590741 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 · 036094005
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
Open in Google Maps ↗

Other Identifiers 2

Medicare PINL90870IL
Medicare UPINE60238IL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stephen Dinwiddie M.d. 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 ID4587853387
PECOS Enrollment IDI20110110000586
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.59
Promoting Interoperability100
Improvement Activities40

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 Stephen Dinwiddie's NPI number?

The NPI number for Stephen Dinwiddie is 1669590741. It was assigned to this individual provider in the NPPES registry on March 27, 2007.

Where is Stephen Dinwiddie located?

Stephen Dinwiddie practices at 446 E Ontario St Suite 7-100, Chicago, IL 60611. The listed phone number is (312) 695-5060.

What is Stephen Dinwiddie's specialty?

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

Is Stephen Dinwiddie enrolled in Medicare?

Yes. Stephen Dinwiddie 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.

When was this NPI record last updated?

The NPPES record for Stephen Dinwiddie was last updated on September 1, 2011. NPI Profile syncs with the weekly NPPES data releases published by CMS.