DR. GREGG ALAN DICKERSON M.D.
NPI 1699777854
Radiology - Radiation Oncology in Greenville, MS
About Dr. Gregg Alan Dickerson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGG ALAN DICKERSON M.D. (NPI 1699777854) is an individual radiation oncology provider in Greenville, Mississippi, licensed in Colorado (47586) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Delta Health System - The Medical Center, and is a graduate of Indiana University School Of Medicine (1984).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Gregg Alan Dickerson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Gregg Dickerson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greenville, MS 38703
- Reassigned Medicare billing, Mississippi enrollment
- 5 clinicians in this Medicare group
Greenville, MS 38703
- Reassigned Medicare billing, Mississippi enrollment
- 123 clinicians in this Medicare group
Chicago, IL 60693
- Reassigned Medicare billing, Mississippi enrollment
Naples, FL 34119
- Reassigned Medicare billing, Florida enrollment
- Medicare enrollment name: Naples Radiation Oncology PA
- 3 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 16
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Delta Health System - The Medical Center
Acute Care Hospitals · Greenville, MSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 38703 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Gregg Dickerson's NPI number?
The NPI number for Gregg Dickerson is 1699777854. It was assigned to this individual provider in the NPPES registry on June 1, 2005.
Where is Gregg Dickerson located?
Gregg Dickerson practices at 1514 E Union St, Greenville, MS 38703. The listed phone number is (662) 332-6150.
What is Gregg Dickerson's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Gregg Dickerson enrolled in Medicare?
Yes. Gregg Dickerson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gregg Dickerson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregg Dickerson reassigns Medicare benefits to 4 organizations: Delta Health System (Greenville, MS), Delta Medical Group (Greenville, MS), Alliance Oncology LLC (Chicago, IL) and Naples Radiation Oncology, P.A. (Naples, FL). Each 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 Gregg Dickerson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregg Dickerson accept?
Health plans from Cigna HealthCare of Florida, Inc., Cigna Healthcare, Florida Blue (BlueCross BlueShield FL), Health Advantage and Octave and 1 other insurer list Gregg Dickerson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Gregg Dickerson affiliated with any hospitals?
According to CMS data, Gregg Dickerson is affiliated with Delta Health System - The Medical Center.
When was this NPI record last updated?
The NPPES record for Gregg Dickerson was last updated on November 30, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.