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DR. DIMA ARBACH M.D.
NPI 1760739114
Psychiatry & Neurology - Psychiatry in Oak Brook, IL

Active since August 03, 2012PECOS EnrolledAccepts Medicare Assignment
915 HARGER RD STE 101, OAK BROOK, IL 60523(909) 570-7194 Get Directions Write a Review

NPPES record last updated: August 8, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Dima Arbach M.d. NPPES

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

DR. DIMA ARBACH M.D. (NPI 1760739114) is an individual psychiatry provider in Oak Brook, Illinois, licensed in Illinois (125063874) and active in the NPI registry since August 2012. She is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1760739114
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. DIMA ARBACHCredential: M.D.
Location Address915 HARGER RD STE 101Oak Brook, IL 60523-1400
Mailing Address915 Harger Rd Ste 101Oak Brook, IL 60523-1400 · (909) 570-7194
Phone(909) 570-7194
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateAugust 3, 2012
Last NPPES UpdateAugust 8, 2025
NPPES CertifiedAugust 8, 2025
✔ NPI 1760739114 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 · 125063874
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.
915 HARGER RD STE 101, Oak Brook, IL 60523
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Oscar Health.Insurance ›

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. Dima Arbach 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 ID6204115363
PECOS Enrollment IDI20230413001222
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 Reassignment

Medicare enrollment records show Dima Arbach reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mindwell Inc
16 mi
Psychiatry
155 N WACKER DR, SUITE 4250
Chicago, IL 60606
  • Reassigned Medicare billing, Illinois enrollment
  • 14 clinicians in this Medicare group
NPI 1396281838 (847) 212-9809

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 60523 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
$181.38 typical visit price
range $59.81 – $181.38
Typical copayment $45.34 (range $14.95 – $45.34)
Most-billed visit code 99205
Established Patient
$74.38 typical visit price
range $19.15 – $147.12
Typical copayment $18.59 (range $4.78 – $36.78)
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 Dima Arbach's NPI number?

The NPI number for Dima Arbach is 1760739114. It was assigned to this individual provider in the NPPES registry on August 3, 2012.

Where is Dima Arbach located?

Dima Arbach practices at 915 Harger Rd Ste 101, Oak Brook, IL 60523. The listed phone number is (909) 570-7194.

What is Dima Arbach's specialty?

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

Is Dima Arbach enrolled in Medicare?

Yes. Dima Arbach 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 organization bills Medicare for Dima Arbach's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dima Arbach reassigns Medicare benefits to Mindwell Inc (Chicago, IL). 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 Dima Arbach's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dima Arbach accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Dima Arbach 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 Dima Arbach was last updated on August 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.