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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. AUSTIN JAMES WESEVICH M.D.
NPI 1558893370
Internal Medicine - Hematology & Oncology in Chicago, IL

Active since March 30, 2017PECOS EnrolledAccepts Medicare Assignment
5841 S MARYLAND AVE # MC2115, CHICAGO, IL 60637(773) 702-2731 Get Directions Write a Review

NPPES record last updated: September 23, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 23, 2026, May 26, 2021, Mar 30, 2017 (3 updates tracked since 2017).

About Dr. Austin James Wesevich M.d. NPPES

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

DR. AUSTIN JAMES WESEVICH M.D. (NPI 1558893370) is an individual hematology & oncology provider in Chicago, Illinois, licensed in Illinois (036.155867) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and maintains a secondary practice location in Columbus.

NPPES Registry Identity

NPI1558893370
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. AUSTIN JAMES WESEVICHCredential: M.D.
Location Address5841 S MARYLAND AVE # MC2115Chicago, IL 60637-1443
Mailing Address180 Harvester Dr Ste 110Burr Ridge, IL 60527-6686 · (773) 702-1150
Phone(773) 702-2731
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateMarch 30, 2017
Last NPPES UpdateSeptember 23, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 23, 2026
✔ NPI 1558893370 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in IL · 036.155867
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.
Also ListedInternal Medicine · HematologyTaxonomy 207RH0000X · License 35.157268 (OH)
5841 S MARYLAND AVE # MC2115, Chicago, IL 60637
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Secondary Practice Location 1

Location 1460 W 10th AveColumbus, OH 43210-1240 · Phone (614) 293-3196 · Fax (614) 293-4812

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Priority 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. Austin James Wesevich 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 ID3173923588
PECOS Enrollment IDI20240725001615, I20260612003045
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 Reassignments

3

Medicare enrollment records show Austin Wesevich reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

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
University Of Chicago
Same address
Multi-Specialty
5841 S MARYLAND AVE, UCPG/MC 1099
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 2,237 clinicians in this Medicare group
NPI 1821048786 (773) 702-9200
Spectrum Health Primary Care Partners
105 mi
Audiologist
588 E LAKEWOOD BLVD
Holland, MI 49424
  • Reassigned Medicare billing, Michigan enrollment
  • 2,446 clinicians in this Medicare group
NPI 1538487400 (616) 494-5860

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

Hospital Affiliations CMS Care Compare

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

Spectrum Health

Acute Care Hospitals · Grand Rapids, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230038
Location100 Michigan St NEGrand Rapids, MI 49503 · Kent County
Emergency services Birthing friendly

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 Austin Wesevich's NPI number?

The NPI number for Austin Wesevich is 1558893370. It was assigned to this individual provider in the NPPES registry on March 30, 2017.

Where is Austin Wesevich located?

Austin Wesevich practices at 5841 S Maryland Ave # Mc2115, Chicago, IL 60637. The listed phone number is (773) 702-2731.

What is Austin Wesevich's specialty?

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

Is Austin Wesevich enrolled in Medicare?

Yes. Austin Wesevich 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 organizations bill Medicare for Austin Wesevich's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Austin Wesevich reassigns Medicare benefits to 3 organizations: The University Of Chicago Medical Center (Chicago, IL), University Of Chicago (Chicago, IL) and Spectrum Health Primary Care Partners (Holland, MI). Each 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 Austin Wesevich's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Austin Wesevich accept?

Health plans from Priority Health list Austin Wesevich 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 Austin Wesevich affiliated with any hospitals?

According to CMS data, Austin Wesevich is affiliated with Spectrum Health.

When was this NPI record last updated?

The NPPES record for Austin Wesevich was last updated on September 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 45 days 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.