WILLIAM B CALHOUN MD
NPI 1932219177
Internal Medicine - Cardiovascular Disease in Tupelo, MS
About William B Calhoun Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM B CALHOUN MD (NPI 1932219177) is an individual cardiovascular disease provider in Tupelo, Mississippi, licensed in Mississippi (14856) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Tishomingo Health Services Inc, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
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
William B Calhoun Md 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 William Calhoun reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tupelo, MS 38801
- Reassigned Medicare billing, Mississippi enrollment
- 20 clinicians in this Medicare group
Tupelo, MS 38801
- Reassigned Medicare billing, Mississippi enrollment
- 23 clinicians in this Medicare group
Tupelo, MS 38801
- Reassigned Medicare billing, Mississippi enrollment
- 35 clinicians in this Medicare group
Amory, MS 38821
- Reassigned Medicare billing, Mississippi enrollment
- 35 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 71
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Tishomingo Health Services Inc
Acute Care Hospitals · Iuka, MSNorth Mississippi Medical Center
Acute Care Hospitals · Tupelo, MSNorth Mississippi Medical Center-Gilmore Amory
Acute Care Hospitals · Amory, MSClay County Medical Corporation
Acute Care Hospitals · West Point, MSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 38801 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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TUPELO, MS 38801
TUPELO, MS 38801
TUPELO, MS 38801
TUPELO, MS 38801
TUPELO, MS 38801
TUPELO, MS 38801
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 William Calhoun's NPI number?
The NPI number for William Calhoun is 1932219177. It was assigned to this individual provider in the NPPES registry on August 30, 2006.
Where is William Calhoun located?
William Calhoun practices at 499 Gloster Creek Vlg Ste A2 Cardiology Associates Of North Ms, Tupelo, MS 38801. The listed phone number is (662) 620-6800.
What is William Calhoun's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is William Calhoun enrolled in Medicare?
Yes. William Calhoun 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 William Calhoun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Calhoun reassigns Medicare benefits to 4 organizations: Cardiology Associates Of North Ms PA (Tupelo, MS), North Mississippi Clinics LLC (Tupelo, MS), North Mississippi Medical Center Services LLC (Tupelo, MS) and Monroe Health Services, Inc. (Amory, MS). 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 William Calhoun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Calhoun accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 3 other insurers list William Calhoun 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 William Calhoun affiliated with any hospitals?
According to CMS data, William Calhoun is affiliated with Tishomingo Health Services Inc, North Mississippi Medical Center, North Mississippi Medical Center-Gilmore Amory and Clay County Medical Corporation.
When was this NPI record last updated?
The NPPES record for William Calhoun was last updated on July 12, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.