DR. CHRISTOPHER CHARLES KEEN M.D.
NPI 1528324050
Internal Medicine - Pulmonary Disease in Florence, SC
About Dr. Christopher Charles Keen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTOPHER CHARLES KEEN M.D. (NPI 1528324050) is an individual pulmonary disease provider in Florence, South Carolina, licensed in South Carolina (MD52149) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Musc Medical Center, and maintains a secondary practice location in West Columbia.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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. Christopher Charles Keen 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
3Medicare enrollment records show Christopher Keen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Florence, SC 29506
- Reassigned Medicare billing, South Carolina enrollment
- 816 clinicians in this Medicare group
Varnville, SC 29944
- Reassigned Medicare billing, South Carolina enrollment
- Also billed through NPI 1366676769 (South Carolina)
- 212 clinicians in this Medicare group
Monroe, GA 30655
- Reassigned Medicare billing, South Carolina enrollment
- 311 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 4
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Musc Medical Center
Acute Care Hospitals · Charleston, SCConway Medical Center
Acute Care Hospitals · Conway, SCGrand Strand Regional Medical Center
Acute Care Hospitals · Myrtle Beach, SCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29506 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
FLORENCE, SC 29506
FLORENCE, SC 29506
FLORENCE, SC 29506
FLORENCE, SC 29506
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 Christopher Keen's NPI number?
The NPI number for Christopher Keen is 1528324050. It was assigned to this individual provider in the NPPES registry on April 10, 2012.
Where is Christopher Keen located?
Christopher Keen practices at 555 E Cheves St, Florence, SC 29506. The listed phone number is (843) 777-5622.
What is Christopher Keen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Christopher Keen enrolled in Medicare?
Yes. Christopher Keen 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 Christopher Keen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Keen reassigns Medicare benefits to 3 organizations: Mcleod Regional Medical Center Of The Pee Dee, Inc (Florence, SC), Beaufort County Memorial Hospital (Varnville, SC) and Hospital Physician Services - Southeast Professional Corporation (Monroe, GA). 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 Christopher Keen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Christopher Keen affiliated with any hospitals?
According to CMS data, Christopher Keen is affiliated with Musc Medical Center, Conway Medical Center and Grand Strand Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Christopher Keen was last updated on January 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.