JOHNNY O ALEXANDER MD
NPI 1649439043
Radiology - Diagnostic Radiology in Chicago, IL

Active since June 02, 2008PECOS EnrolledAccepts Medicare Assignment
99.95/100
CMS Quality Rating
3753 S COTTAGE GROVE AVE STE 101, CHICAGO, IL 60653(708) 216-9000 Get Directions Write a Review

NPPES record last updated: July 28, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 2, 2025, Oct 24, 2022 (2 updates tracked since 2022).

About Johnny O Alexander Md NPPES

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

JOHNNY O ALEXANDER MD (NPI 1649439043) is an individual diagnostic radiology provider in Chicago, Illinois, licensed in New York (316970) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Hca Florida Fawcett Hospital, and maintains a secondary practice location in Washington.

NPPES Registry Identity

NPI1649439043
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameJOHNNY O ALEXANDERCredential: MD
Location Address3753 S COTTAGE GROVE AVE STE 101Chicago, IL 60653-1662
Mailing AddressUva Health Services Foundation, P.o. Box 9007Charlottesville, VA 22908-0001 · (434) 295-1000 · Fax (434) 972-4266
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 2002
Enumeration DateJune 2, 2008
Last NPPES UpdateJuly 28, 20252 updates tracked since enumeration
NPPES CertifiedJuly 28, 2025
✔ NPI 1649439043 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses✔ Licensed in NY · 316970✔ Licensed in DC · MD210012291✔ Licensed in VA · 0101243293✔ Licensed in IL · 36128037
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
3753 S COTTAGE GROVE AVE STE 101, Chicago, IL 60653

Secondary Practice Location 1

Location 12041 Georgia Ave NW # 1R84Washington, DC 20060-1662 · Phone (202) 865-3610

Other Identifiers 1

Medicaid1649439043VA

Accepted 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

Johnny O Alexander Md 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 ID9234201906
PECOS Enrollment IDI20090707000239, I20150305000748, I20221114001296, I20230118000770, I20230803002631
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

11

Medicare enrollment records show Johnny Alexander reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Diagnostic Radiology
22101 MOROSS RD
Detroit, MI 48236
  • Reassigned Medicare billing, Georgia enrollment
  • 4 clinicians in this Medicare group
Otolaryngology
504 E RIDGEVILLE BLVD STE 110
Mount Airy, MD 21771
  • Reassigned Medicare billing, Maryland enrollment
  • 317 clinicians in this Medicare group
Health Service
19801 OBSERVATION DR
Germantown, MD 20876
  • Reassigned Medicare billing, District of Columbia enrollment
  • 234 clinicians in this Medicare group
Physical Medicine & Rehabilitation
820 WEST DIAMOND AVENUE
Gaithersburg, MD 20878
  • Reassigned Medicare billing, District of Columbia enrollment
  • 340 clinicians in this Medicare group
Diagnostic Radiology
9601 BLACKWELL RD STE 150
Rockville, MD 20850
  • Reassigned Medicare billing, District of Columbia enrollment
  • 118 clinicians in this Medicare group
Diagnostic Radiology
303 PARKWAY DR NE
Atlanta, GA 30312
  • Reassigned Medicare billing, Georgia enrollment
  • 18 clinicians in this Medicare group
Multi-Specialty
2041 GEORGIA AVE NW
Washington, DC 20060
  • Reassigned Medicare billing, District of Columbia enrollment
  • 319 clinicians in this Medicare group
Internal Medicine
8906 135TH ST
Jamaica, NY 11418
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Tjh Medical Services PC
  • 497 clinicians in this Medicare group
Emergency Medical Services
8900 VAN WYCK EXPWY
Jamaica, NY 11418
  • Reassigned Medicare billing, New York enrollment
  • 738 clinicians in this Medicare group
Rural
102 HOSPITAL CIRCLE
Donalsonville, GA 39845
  • Reassigned Medicare billing, Georgia enrollment
  • 101 clinicians in this Medicare group

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 44

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.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
598 services566 patients
Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
244 services241 patients
Mri scan of brain without contrast 70551
An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.
147 services147 patients
Ct scan of chest without contrast 71250
A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.
89 services89 patients
Mri scan of brain before and after contrast 70553
An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.
88 services88 patients
Ct scan of abdomen and pelvis without contrast 74176
A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.
88 services87 patients

Hospital Affiliations CMS Care Compare 5

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

Hca Florida Fawcett Hospital

Acute Care Hospitals · Port Charlotte, FL
2/5 CMS rating
OwnershipProprietary
CMS Certification Number100236
Location21298 Olean BlvdPort Charlotte, FL 33952 · Charlotte County
Emergency services

Hca Florida Gulf Coast Hospital

Acute Care Hospitals · Panama City, FL
3/5 CMS rating
OwnershipProprietary
CMS Certification Number100242
Location449 W 23rd StPanama City, FL 32405 · Bay County
Emergency services Birthing friendly

Holy Cross Hospital

Acute Care Hospitals · Silver Spring, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number210004
Location1500 Forest Glen RoadSilver Spring, MD 20910 · Montgomery County
Birthing friendly

Sinai Hospital Of Baltimore

Acute Care Hospitals · Baltimore, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210012
Location2401 West Belvedere AvenueBaltimore, MD 21215 · Baltimore City County
Emergency services Birthing friendly

Adventist Healthcare Shady Grove Medical Center

Acute Care Hospitals · Rockville, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210057
Location9901 Medical Center DriveRockville, MD 20850 · Montgomery County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60653 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

99.95/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality91.18
Promoting Interoperability79
Improvement Activities40
Cost92.82

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 Johnny Alexander's NPI number?

The NPI number for Johnny Alexander is 1649439043. It was assigned to this individual provider in the NPPES registry on June 2, 2008.

Where is Johnny Alexander located?

Johnny Alexander practices at 3753 S Cottage Grove Ave Ste 101, Chicago, IL 60653. The listed phone number is (708) 216-9000.

What is Johnny Alexander's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Johnny Alexander enrolled in Medicare?

Yes. Johnny Alexander 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 Johnny Alexander's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Johnny Alexander reassigns Medicare benefits to 11 organizations: Eastpointe Radiologists, P.C. (Detroit, MI), Lifebridge Community Physicians Inc (Mount Airy, MD), Professional Services Of Holy Cross (Germantown, MD), Adventist Physician Services, Inc. (Gaithersburg, MD), Blackwell Physicians, LLC (Rockville, MD) and 6 more organizations, listed in the Medicare section above. 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 Johnny Alexander's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Johnny Alexander accept?

Health plans from CareSource and Oscar Health Maintenance Organization of Florida list Johnny Alexander 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 Johnny Alexander affiliated with any hospitals?

According to CMS data, Johnny Alexander is affiliated with Hca Florida Fawcett Hospital, Hca Florida Gulf Coast Hospital, Holy Cross Hospital, Sinai Hospital Of Baltimore and Adventist Healthcare Shady Grove Medical Center.

When was this NPI record last updated?

The NPPES record for Johnny Alexander was last updated on July 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.