CORY MICHAEL MARKHAM MD
NPI 1861889933
Internal Medicine - Critical Care Medicine in Shreveport, LA
About Cory Michael Markham Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CORY MICHAEL MARKHAM MD (NPI 1861889933) is an individual critical care medicine provider in Shreveport, Louisiana, licensed in Louisiana (308719) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with Willis Knighton Medical Center, and is a graduate of Louisiana State University School Of Medicine In Shreveport (2015).
NPPES Registry Identity
Specialties & Licenses 3
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
Cory Michael Markham 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 Cory Markham reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Shreveport, LA 71103
- Reassigned Medicare billing, Louisiana enrollment
- 25 clinicians in this Medicare group
Lake Charles, LA 70601
- Reassigned Medicare billing, Louisiana enrollment
- 119 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Louisiana enrollment
- 122 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Louisiana enrollment
- 214 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 3
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.
Willis Knighton Medical Center
Acute Care Hospitals · Shreveport, LAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 71103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SHREVEPORT, LA 71103
SHREVEPORT, LA 71103
SHREVEPORT, LA 71103
SHREVEPORT, LA 71103
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 Cory Markham's NPI number?
The NPI number for Cory Markham is 1861889933. It was assigned to this individual provider in the NPPES registry on April 16, 2015.
Where is Cory Markham located?
Cory Markham practices at 2551 Greenwood Rd Ste 210, Shreveport, LA 71103. The listed phone number is (318) 635-0834.
What is Cory Markham's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Cory Markham enrolled in Medicare?
Yes. Cory Markham 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 Cory Markham's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cory Markham reassigns Medicare benefits to 4 organizations: Wk North Pulmonary & Critical Care (Shreveport, LA), Sound Physicians Emergency Medicine Of Louisiana Inc (Lake Charles, LA), South Central Physicians PLLC (Lubbock, TX) and Concord Medical Group PLLC (Lubbock, TX). 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 Cory Markham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Cory Markham accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Blue Cross and Blue Shield of Louisiana and 1 other insurer list Cory Markham 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 Cory Markham affiliated with any hospitals?
According to CMS data, Cory Markham is affiliated with Willis Knighton Medical Center.
When was this NPI record last updated?
The NPPES record for Cory Markham was last updated on July 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Cory Michael Markham, MD · NPI 1861889933
Critical Care Medicine physician in Shreveport, Louisiana. Individual provider, active in the CMS NPPES registry since April 16, 2015.
## Identity
- **NPI:** 1861889933 (Entity type: Individual)
- **Enumerated:** April 16, 2015
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 308719 (Louisiana)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2551 GREENWOOD RD STE 210, Shreveport, LA 71103-3985
- **Phone:** (318) 635-0834 · **Fax:** (318) 636-2331
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Wk North Pulmonary & Critical Care (NPI 1265529648, Shreveport, LA); Sound Physicians Emergency Medicine Of Louisiana Inc (NPI 1396253407, Lake Charles, LA); South Central Physicians PLLC (NPI 1427611854, Lubbock, TX); Concord Medical Group PLLC (NPI 1083630610, Lubbock, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Louisiana State University School Of Medicine In Shreveport, class of 2015
## Record status
- **NPPES last updated:** July 2, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1861889933) · Data from the CMS NPPES public registry.