DR. JOHN LAMBERT FLACH DO
NPI 1386223089
Psychiatry & Neurology - Neurology in Arlington Heights, IL

Active since April 08, 2021PECOS EnrolledAccepts Medicare Assignment
880 W CENTRAL RD, ARLINGTON HEIGHTS, IL 60005(847) 618-4430(847) 618-0786 Get Directions Write a Review

NPPES record last updated: September 24, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 23, 2025, Apr 8, 2021 (2 updates tracked since 2021).

About Dr. John Lambert Flach Do NPPES

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

DR. JOHN LAMBERT FLACH DO (NPI 1386223089) is an individual neurology provider in Arlington Heights, Illinois, licensed in Illinois (036173195) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Northwest Community Hospital 1, and maintains a secondary practice location in Indianapolis.

NPPES Registry Identity

NPI1386223089
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDR. JOHN LAMBERT FLACHCredential: DO
Location Address880 W CENTRAL RDArlington Heights, IL 60005-2355
Mailing Address2650 Ridge Ave Ste 1223Evanston, IL 60201-1700 · (847) 982-6715
Fax(847) 618-0786
Sole ProprietorNo
Medical School CMSLincoln Mem Univ, Debusk Col Of Osteopathic MedGraduated 2021
Enumeration DateApril 8, 2021
Last NPPES UpdateSeptember 24, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 24, 2025
NPI 1386223089 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License Licensed in IL · 036173195
Definition

A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 036173195 (IL)
880 W CENTRAL RD, Arlington Heights, IL 60005

Secondary Practice Location 1

Location 11120 W Michigan St # Cl642Indianapolis, IN 46202-5209 · Phone (317) 278-2686

Accepted Insurance

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

Dr. John Lambert Flach Do 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 ID5395146559
PECOS Enrollment IDI20250702001992
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwest Community Hospital 1

Acute Care Hospitals · Arlington Heights, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140252
Location800 W Central RoadArlington Heights, IL 60005 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60005 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
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.

Pediatrics
880 W CENTRAL RD, SUITE 6400 CHILDRENS MEMORIAL OUTPT CENTER
ARLINGTON HEIGHTS, IL 60005
Physician Assistant (Surgical)
880 W CENTRAL RD, SUITE 5000
ARLINGTON HEIGHTS, IL 60005
Anesthesiology (Pain Medicine)
880 W CENTRAL RD, SUITE 3600
ARLINGTON HEIGHTS, IL 60005
Specialist
880 W CENTRAL RD, STE 7200
ARLINGTON HEIGHTS, IL 60005
Urology
880 W CENTRAL RD, SUITE 5200
ARLINGTON HEIGHTS, IL 60005
Physician Assistant
880 W CENTRAL RD, #5000
ARLINGTON HEIGHTS, IL 60005
Anesthesiology
880 W CENTRAL RD, SUITE 3600
ARLINGTON HEIGHTS, IL 60005
Pediatrics
880 W CENTRAL RD, STE 4200
ARLINGTON HEIGHTS, IL 60005

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 John Flach's NPI number?

The NPI number for John Flach is 1386223089. It was assigned to this individual provider in the NPPES registry on April 8, 2021.

Where is John Flach located?

John Flach practices at 880 W Central Rd, Arlington Heights, IL 60005. The listed phone number is (847) 618-4430.

What is John Flach's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is John Flach enrolled in Medicare?

Yes. John Flach 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.

What insurance does John Flach accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list John Flach 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.

Is John Flach affiliated with any hospitals?

According to CMS data, John Flach is affiliated with Northwest Community Hospital 1.

When was this NPI record last updated?

The NPPES record for John Flach was last updated on September 24, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.