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BRIAN HEISS M.D., M.A.
NPI 1922426352
Internal Medicine - Hematology & Oncology in Chicago, IL

Active since April 02, 2014PECOS Enrolled
5841 S MARYLAND AVE # MC2115, CHICAGO, IL 60637(773) 702-2614(773) 702-3163 Get Directions Write a Review

NPPES record last updated: September 6, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Brian Heiss M.d., M.a. NPPES

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

BRIAN HEISS M.D., M.A. (NPI 1922426352) is an individual hematology & oncology provider in Chicago, Illinois, licensed in Illinois (336.104051) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1922426352
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameBRIAN HEISSCredential: M.D., M.A.
Location Address5841 S MARYLAND AVE # MC2115Chicago, IL 60637-1443
Mailing Address5841 South Maryland Avenue, Mc2115Chicago, IL 60637-1470 · (773) 702-2614 · Fax (773) 702-3163
Phone(773) 702-2614
Fax(773) 702-3163
Sole ProprietorNo
Enumeration DateApril 2, 2014
Last NPPES UpdateSeptember 6, 2017
✔ NPI 1922426352 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in IL · 336.104051
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
5841 S MARYLAND AVE # MC2115, Chicago, IL 60637
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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 (PECOS)

Brian Heiss M.d., M.a. 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.

Medicare Billing Reassignment

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

The University Of Chicago Medical Center
Same address
General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 1,905 clinicians in this Medicare group
NPI 1033218128 (773) 702-1530

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 60637 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
$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.

DR. DANIEL OLSON M.D.
Internal Medicine (Hematology & Oncology)
5841 S MARYLAND AVE # MC2115
CHICAGO, IL 60637
Cook County (773) 702-0878
GILDA GRACE RIVERA
Nurse Practitioner
5841 S MARYLAND AVE # MC2115
CHICAGO, IL 60637
Cook County (773) 702-6149
DR. ABIOLA FALILAT IBRAHEEM M.B.CHB
Internal Medicine (Medical Oncology)
5841 S MARYLAND AVE # MC2115
CHICAGO, IL 60637
Cook County (773) 702-1000
DAWN MARIE CONWAY AGNP-C
Nurse Practitioner (Primary Care)
5841 S MARYLAND AVE # MC2115
CHICAGO, IL 60637
Cook County (773) 702-1000
MARINA CHIARA GARASSINO MD
Internal Medicine (Medical Oncology)
5841 S MARYLAND AVE # MC2115
CHICAGO, IL 60637
Cook County (773) 702-2984
KOOSHA PAYDARY MD
Internal Medicine (Hematology & Oncology)
5841 S MARYLAND AVE # MC2115
CHICAGO, IL 60637
Cook County (773) 702-2731
BUKKY FLORENCE TABITI MD
Internal Medicine
5841 S MARYLAND AVE # MC2115
CHICAGO, IL 60637
Cook County (773) 702-2731
MEYTAL BATYA CHERNOFF M.D.
Internal Medicine (Hematology & Oncology)
5841 S MARYLAND AVE # MC2115
CHICAGO, IL 60637
Cook County (773) 702-2731

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 Brian Heiss's NPI number?

The NPI number for Brian Heiss is 1922426352. It was assigned to this individual provider in the NPPES registry on April 2, 2014.

Where is Brian Heiss located?

Brian Heiss practices at 5841 S Maryland Ave # Mc2115, Chicago, IL 60637. The listed phone number is (773) 702-2614.

What is Brian Heiss's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Brian Heiss enrolled in Medicare?

Yes. Brian Heiss is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Brian Heiss's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brian Heiss reassigns Medicare benefits to The University Of Chicago Medical Center (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 Brian Heiss's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Brian Heiss accept?

Health plans from Oscar Health list Brian Heiss 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 Brian Heiss was last updated on September 6, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.