John P Affronti, MD

Individual provider Gastroenterology Physician · NPI 1023020872

John P Affronti, MD practises Gastroenterology in Lutherville, Maryland. Graduated from George Washington University School of Medicine in 1985, 41 years ago. Practices with Johns Hopkins University, a 2,855-clinician group and works from 2 locations. Licensed in Illinois and Maryland.

Years since qualifying: 41
Trained at: George Washington University School of Medicine
Licensed in: IL, MD
In the registry since: 2006
Specialties on file: 2

What do these letters mean?

MD — Doctor of Medicine: A physician who completed allopathic medical school.

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Practice location Address checks out

10803 Falls Road Pavillion Iii
Lutherville, MD 21093-4502
Phone: (410) 616-7650
Fax: (410) 616-7651

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

1120 15th St, Augusta, GA 30912-0004 — (706) 724-6100

Specialties & licences

Gastroenterology Physician (primary)	Taxonomy 207RG0100X · Licence D0091561 (MD)
Gastroenterology Physician	Taxonomy 207RG0100X · Licence 036119151 (IL)

Record details

NPI number	1023020872
Entity type	Individual (Type 1)
Gender	Male
Credentials	MD
Sole proprietor	No
NPI enumerated	August 12, 2006
Last updated in NPPES	February 28, 2022
Certification date	February 16, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialty	GASTROENTEROLOGY
Medical school	GEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated	1985 (41 years in practice)
Group practice	Johns Hopkins University — 2855 clinicians
Accepts Medicare assignment	Not indicated
Practice locations	5 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy	49 times · 63rd percentile
Upper gastrointestinal (GI) endoscopy for acid reflux	40 times · 60th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients	207
Services billed	286 a service is one billed item, such as a visit, a test or a procedure
Average patient age	69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Johns Hopkins Bayview Medical Center Hospital · Baltimore, MD
Johns Hopkins Hospital, The Hospital · Baltimore, MD · listed as The Johns Hopkins Hospital

Colleagues at Johns Hopkins University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2855 clinicians in the practice; 12 are shown here.

Dr. Daniel C Brennan, MD Nephrology Physician · Baltimore, MD
Gregory Bruce Diette, MD Pulmonary Disease Physician · Baltimore, MD
Dr. David W Eisele, MD Otolaryngology Physician · Baltimore, MD
Philippe Edmond Gailloud, MD Vascular & Interventional Radiology Physician · Baltimore, MD
Anthony L. Guerrerio Jr., MD, PHD Pediatrics Physician · Baltimore, MD
Dr. Christopher Joseph Hammond, MD Child & Adolescent Psychiatry Physician · Baltimore, MD
Mrs. Lynn Hause, PA-C Physician Assistant · Baltimore, MD
Dr. Dawn Laporte, MD Orthopaedic Hand Surgery Physician · Baltimore, MD
Debra Love, CRNP Nurse Practitioner · Baltimore, MD
Maie Abdul-Rahman St John, MD Otolaryngology Physician · Los Angeles, CA
Arun Venkatesan, MD Neurology Physician · Baltimore, MD
Glenn T Wetzel, MD Clinical Cardiac Electrophysiology Physician · Memphis, TN

Other providers in Lutherville

Peter Belitsos, MD

Individual Gastroenterology Physician · NPI 1619978871

10755 Falls Rd Ste 200, Lutherville, MD 21093-4515 · (410) 583-7106
Dr. Nakul Bhardwaj, DO, MPH

Individual Gastroenterology Physician · NPI 1851880835

10753 Falls Rd Ste 305, Lutherville, MD 21093-4598 · (410) 616-7420
Dr. David McEvoy Cromwell, MD

Individual Gastroenterology Physician · NPI 1063415271

10751 Falls Rd Ste 401, Lutherville, MD 21093 · (410) 583-2920
David F. Hutcheon, MD, LLC

Organization Gastroenterology Physician · NPI 1114131935

10751 Falls Rd Ste 401, Lutherville, MD 21093-4568 · (410) 583-2631

John P Affronti, MD

Practice location Address checks out

Additional practice locations (1)

Specialties & licences

Record details

Medicare enrollment

Procedures

Medicare patients and services, 2024

Practises at

Colleagues at Johns Hopkins University

Other providers in Lutherville

Peter Belitsos, MD

Dr. Nakul Bhardwaj, DO, MPH

Dr. David McEvoy Cromwell, MD

David F. Hutcheon, MD, LLC