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

Simon Matthew Gray, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1871081414

Simon Matthew Gray, MD practises Gastroenterology in Chapel Hill, North Carolina. Graduated from Yale University School of Medicine in 2018, 8 years ago. Practices with University of North Carolina at Chapel Hill, a 2,079-clinician group and accepts Medicare assignment. Licensed in North Carolina.

Years since qualifying
8
Trained at
Yale University School of Medicine
Licensed in
NC
In the registry since
2018
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

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Chapel Hill, NC

No coordinates on file. Search this address in Google Maps

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 2021-03123 (NC)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 238237 (NC)

Record details

NPI number1871081414
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 30, 2018
Last updated in NPPESMarch 12, 2024
Certification dateMarch 12, 2024

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolYALE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2018 (8 years in practice)
Group practice University Of North Carolina At Chapel Hill — 2079 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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.

Upper gastrointestinal (GI) endoscopy for acid reflux 25 times · 53rd percentile
Colonoscopy 17 times · 46th 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 patients11
Services billed 22 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

  • Unc Hospitals Hospital · Chapel Hill, NC · listed as UNC Hospital

Colleagues at University of North Carolina at Chapel Hill

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2079 clinicians in the practice; 12 are shown here.

Other providers in Chapel Hill