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DR. STEPHEN PETRAK D.C
NPI 1811308919
Chiropractor in Chicago, IL

Active since May 12, 2014
3444 N HALSTED ST, CHICAGO, IL 60657(773) 525-9100(773) 525-9105 Get Directions Write a Review

NPPES record last updated: May 12, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Stephen Petrak D.c NPPES

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

DR. STEPHEN PETRAK D.C (NPI 1811308919) is an individual chiropractor in Chicago, Illinois, licensed in Illinois (038012618) and active in the NPI registry since May 2014. He is a graduate of Palmer College Chiropractic - West Sunnyvale (2014).

NPPES Registry Identity

NPI1811308919
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameDR. STEPHEN PETRAKCredential: D.C
Location Address3444 N HALSTED STChicago, IL 60657-9492
Mailing Address3444 N Halsted StChicago, IL 60657-9492 · (773) 525-9100 · Fax (773) 525-9105
Phone(773) 525-9100
Fax(773) 525-9105
Sole ProprietorNo
Medical School CMSPalmer College Chiropractic - West SunnyvaleGraduated 2014
Enumeration DateMay 12, 2014
✔ NPI 1811308919 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in IL · 038012618
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
3444 N HALSTED ST, Chicago, IL 60657
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Stephen Petrak D.c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6103040209
PECOS Enrollment IDI20140611000919

Medicare Billing Reassignment

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

Petrak Family Chiropractic Center S.C
15 mi
Chiropractor
3070 SOUTH WOLF RD
Westchester, IL 60154
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Petrak Family Chiropractic Center Sc
  • 3 clinicians in this Medicare group
NPI 1841661774 (630) 853-9971

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Chiropractic manipulative treatment, 3-4 spinal regions 98941
Chiropractic manipulative treatment for 3-4 spinal regions involves a trained professional applying controlled force to specific areas of your spine. This can help alleviate pain, improve physical function, and support your body's natural healing process.
1,151 services74 patients

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KNECHT CHIROPRACTIC CLINIC, P.C.
Chiropractor
3444 N HALSTED ST
CHICAGO, IL 60657
Cook County (773) 525-9100
LA JENA MILLER DC
Chiropractor
3444 N HALSTED ST
CHICAGO, IL 60657
Cook County (773) 525-9100
BRITTNI M LORTON DC
Chiropractor
3444 N HALSTED ST
CHICAGO, IL 60657
Cook County (773) 525-9100
DR. JENNIFER NUDO D.C.
Chiropractor
3444 N HALSTED ST
CHICAGO, IL 60657
Cook County (773) 525-9100
DR. MEAGHAN VICTORIA CLEMENS D.C.
Chiropractor
3444 N HALSTED ST
CHICAGO, IL 60657
Cook County (773) 525-9100
DR. ANDREW T KNECHT D.C.
Chiropractor
3444 N HALSTED ST
CHICAGO, IL 60657
Cook County (773) 525-9100
DR. TRAVIS ROGERS D.C.
Chiropractor
3444 N HALSTED ST
CHICAGO, IL 60657
Cook County (773) 525-9100

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 Petrak's NPI number?

The NPI number for Stephen Petrak is 1811308919. It was assigned to this individual provider in the NPPES registry on May 12, 2014.

Where is Stephen Petrak located?

Stephen Petrak practices at 3444 N Halsted St, Chicago, IL 60657. The listed phone number is (773) 525-9100.

What is Stephen Petrak's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Stephen Petrak enrolled in Medicare?

Yes. Stephen Petrak is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephen Petrak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Petrak reassigns Medicare benefits to Petrak Family Chiropractic Center S.C (Westchester, 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 Stephen Petrak'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 Stephen Petrak was last updated on May 12, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.