Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John McMahon Gross, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1760748065

Dr. John McMahon Gross, MD is a Pathology in Baltimore, Maryland. Graduated from Creighton University School of Medicine in 2012, 14 years ago. Practices with Johns Hopkins University, a 2,855-clinician group and works from 2 locations. Licensed in Maryland, Minnesota and Nebraska.

Years since qualifying
14
Trained at
Creighton University School of Medicine
Licensed in
MD, MN, NE
In the registry since
2012
Specialties on file
3
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

401 N Broadway Weinberg 2251
Baltimore, MD 21231
Phone: (410) 614-3653
Fax: (410) 955-8208
Show map & directions

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

Additional practice locations (1)

  • 601 N 30th St, Omaha, NE 68131-2137 — (402) 280-4412

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence D89396 (MD)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 66074 (MN)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 7248 (NE)

Record details

NPI number1760748065
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 11, 2012
Last updated in NPPESAugust 3, 2021
Certification dateAugust 3, 2021

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice Johns Hopkins University — 2855 clinicians
Accepts Medicare assignment Not indicated
Practice locations7 on file with Medicare

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