DR. CALVIN HUBERT FLOWERS JR. M.D.
NPI 1598841843
Radiology - Neuroradiology in Chicago, IL

Active since October 30, 2006PECOS Enrolled
820 S DAMEN AVE, CHICAGO, IL 60612(312) 569-7151 Get Directions Write a Review

NPPES record last updated: January 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 23, 2026, Oct 12, 2025 (2 updates tracked since 2025).

About Dr. Calvin Hubert Flowers Jr. M.d. NPPES

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

DR. CALVIN HUBERT FLOWERS JR. M.D. (NPI 1598841843) is an individual neuroradiology provider in Chicago, Illinois, licensed in Illinois (036081453) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1598841843
Entity TypeIndividualMale
Primary Taxonomy2085N0700X
Provider Legal NameDR. CALVIN HUBERT FLOWERS JR.Credential: M.D.
Location Address820 S DAMEN AVEChicago, IL 60612-3728
Mailing Address1830 S Indiana Ave Unit EChicago, IL 60616-2456 · (312) 569-7151
Sole ProprietorYes
Enumeration DateOctober 30, 2006
Last NPPES UpdateJanuary 23, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 23, 2026
NPI 1598841843 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyRadiology · NeuroradiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085N0700X
License Licensed in IL · 036081453
Definition
A radiologist who diagnoses and treats diseases utilizing imaging procedures as they relate to the brain, spine and spinal cord, head, neck and organs of special sense in adults and children.
Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License 036081453 (IL)
820 S DAMEN AVE, Chicago, IL 60612

Secondary Practice Locations 2

Location 11653 W Congress PkwyChicago, IL 60612-3833 · Phone (312) 943-5000
Location 21740 W Taylor StChicago, IL 60612-7232 · Phone (312) 413-4900

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Dr. Calvin Hubert Flowers Jr. M.d. 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.

Areas of Expertise CMS Part B claims 3

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.

Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
32 services32 patients
Ct scan of chest with contrast 71260
A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.
23 services23 patients
Low dose ct scan of chest for lung cancer screening 71271
A low-dose CT scan of the chest is a quick, painless procedure that uses a small amount of radiation to create detailed images of your lungs. It's a key tool for early detection of lung cancer, especially for those at high risk.
22 services22 patients

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.

Pharmacist
820 S DAMEN AVE, PHARMACY (119)
CHICAGO, IL 60612
Psychologist (Clinical)
820 S DAMEN AVE
CHICAGO, IL 60612
Social Worker (Clinical)
820 S DAMEN AVE
CHICAGO, IL 60612
Social Worker (Clinical)
820 S DAMEN AVE, ROOM 8456
CHICAGO, IL 60612
Nuclear Medicine
820 S DAMEN AVE
CHICAGO, IL 60612
Military Hospital (Military General Acute Care Hospital)
820 S DAMEN AVE
CHICAGO, IL 60612
Psychiatry & Neurology (Psychiatry)
820 S DAMEN AVE, MAILCODE 116A
CHICAGO, IL 60612
Pharmacist (Pharmacotherapy)
820 S DAMEN AVE
CHICAGO, IL 60612

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 Calvin Flowers's NPI number?

The NPI number for Calvin Flowers is 1598841843. It was assigned to this individual provider in the NPPES registry on October 30, 2006.

Where is Calvin Flowers located?

Calvin Flowers practices at 820 S Damen Ave, Chicago, IL 60612. The listed phone number is (312) 569-7151.

What is Calvin Flowers's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Neuroradiology, with taxonomy code 2085N0700X.

Is Calvin Flowers enrolled in Medicare?

Yes. Calvin Flowers is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Calvin Flowers was last updated on January 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.