Simon Gray, MD
NPI 1871081414 · Gastroenterology Physician · Chapel Hill, NC
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Simon Gray, MD is a Gastroenterology Physician provider in Chapel Hill, NC (NPI 1871081414).
Provider details
- NPI number
- 1871081414
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 238237 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Ustekinumabbrand: Stelara | 25 |
| Omeprazole | 24 |
| Mesalaminebrand: Mesalamine Er | 16 |
| Famotidine | 14 |
| Entecavir | 13 |
| Adalimumabbrand: Humira(cf) Pen | 13 |
| Ondansetronbrand: Ondansetron Odt | 13 |
| Linaclotidebrand: Linzess | 12 |
| Budesonidebrand: Budesonide Ec | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$47,837 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-30
- Last updated
- 2024-03-12
- Certified
- 2024-03-12
Frequently asked questions
- What is Simon Gray's NPI number?
- Simon Gray's National Provider Identifier (NPI) is 1871081414, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Simon Gray's specialty?
- Simon Gray is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Simon Gray located?
- Simon Gray's practice location on file with NPPES is Ambulatory Care Center 102 Mason Farm Rd, Chapel Hill, NC 27599.
- What is Simon Gray's phone number?
- The practice phone number listed in the NPPES registry for Simon Gray is (919) 966-1459.
- Does Simon Gray accept Medicare?
- Simon Gray is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Simon Gray's NPI active?
- Yes — Simon Gray's NPI (1871081414) is active in the NPPES registry as of the last update on 2024-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.