MARK J CORONEL MD PC
NPI 1639445869
Internal Medicine - Gastroenterology in Riverhead, NY
About Mark J Coronel Md Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK J CORONEL MD PC (NPI 1639445869) is a healthcare organization registered as a gastroenterology in Riverhead, New York and active in the NPI registry since April 2012. The organization lists Mark J. Coronel, Physician, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mark J Coronel Md Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
18Medicare enrollment records show 18 clinicians reassign Medicare billing to Mark J Coronel MD PC, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 5
Clinicians, nearest first (18)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Mark J Coronel MD PC's NPI number?
The NPI number for Mark J Coronel MD PC is 1639445869. It was assigned to this organization in the NPPES registry on April 2, 2012.
Where is Mark J Coronel MD PC located?
Mark J Coronel MD PC is located at 34 Commerce Ave, Riverhead, NY 11901. The listed phone number is (631) 591-3000.
What is Mark J Coronel MD PC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Mark J Coronel MD PC enrolled in Medicare?
Yes. Mark J Coronel MD PC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mark J Coronel MD PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 18 clinicians in 5 Medicare specialties reassign their Medicare billing to Mark J Coronel MD PC. A 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 the clinician's services. The largest specialties are Anesthesiology (10), Certified Registered Nurse Anesthetist (CRNA) (5) and Gastroenterology (1). Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Mark J Coronel MD PC was last updated on April 2, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.
# Mark J Coronel Md Pc · NPI 1639445869
Gastroenterology organization in Riverhead, New York. Organization record, active in the CMS NPPES registry since April 2, 2012.
## Identity
- **NPI:** 1639445869 (Entity type: Organization)
- **Enumerated:** April 2, 2012
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Organization subpart:** No
- **Authorized official:** Mark Coronel, PHYSICIAN
## Practice location
- **Address:** 34 COMMERCE AVE, Riverhead, NY 11901-3118
- **Phone:** (631) 591-3000 · **Fax:** (631) 591-1734
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 18 clinicians in 5 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Anesthesiology (10), Certified Registered Nurse Anesthetist (CRNA) (5), Gastroenterology (1); 2 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 2, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1639445869) · Data from the CMS NPPES public registry.