DR. CHRISTOPHER CHARLES KEEN M.D.
NPI 1528324050
Internal Medicine - Pulmonary Disease in Florence, SC

Active since April 10, 2012PECOS EnrolledAccepts Medicare Assignment
555 E CHEVES ST, FLORENCE, SC 29506(843) 777-5622 Get Directions Write a Review

NPPES record last updated: January 18, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 27, 2023, Jul 18, 2018 (2 updates tracked since 2018).

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

NPI1528324050
Entity TypeIndividualMale
Primary Taxonomy207RP1001X
Provider Legal NameDR. CHRISTOPHER CHARLES KEENCredential: M.D.
Location Address555 E CHEVES STFlorence, SC 29506
Mailing Address5310 N Ocean Blvd Unit 1402Myrtle Beach, SC 29577-2531
Sole ProprietorYes
Medical School CMSOtherGraduated 2012
Enumeration DateApril 10, 2012
Last NPPES UpdateJanuary 18, 20242 updates tracked since enumeration
NPPES CertifiedJanuary 18, 2024
✔ NPI 1528324050 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in SC · MD52149
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
555 E CHEVES ST, Florence, SC 29506

Secondary Practice Location 1

Location 12720 Sunset BlvdWest Columbia, SC 29169-4810 · Phone (803) 936-7372 · Fax (803) 936-4102

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.

PECOS PAC ID9133346943
PECOS Enrollment IDI20181025001067
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare 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.

Emergency Medical Services
555 E CHEVES ST
Florence, SC 29506
  • Reassigned Medicare billing, South Carolina enrollment
  • 816 clinicians in this Medicare group
Rural Health
1000 PINE STREET WEST
Varnville, SC 29944
  • Reassigned Medicare billing, South Carolina enrollment
  • Also billed through NPI 1366676769 (South Carolina)
  • 212 clinicians in this Medicare group
Hospitalist
2151 W SPRING ST
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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
455 services195 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
178 services106 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
136 services108 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
17 services17 patients

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, SC
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number420004
Location169 Ashley AveCharleston, SC 29425 · Charleston County
Emergency services Birthing friendly

Conway Medical Center

Acute Care Hospitals · Conway, SC
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number420049
Location300 Singleton Ridge RoadConway, SC 29526 · Horry County
Emergency services Birthing friendly

Grand Strand Regional Medical Center

Acute Care Hospitals · Myrtle Beach, SC
3/5 CMS rating
OwnershipProprietary
CMS Certification Number420085
Location809 82nd ParkwayMyrtle Beach, SC 29572 · Horry County
Emergency services Birthing friendly

Physician 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.

New Patient
$124.04 typical visit price
range $53.57 – $163.84
Typical copayment $31.01 (range $13.39 – $40.96)
Most-billed visit code 99204
Established Patient
$95.12 typical visit price
range $16.96 – $133.52
Typical copayment $23.78 (range $4.24 – $33.38)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
1 supplier12 claims12 services$913.09 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Occupational Therapist
555 E CHEVES ST
FLORENCE, SC 29506
Physical Therapy Assistant
555 E CHEVES ST
FLORENCE, SC 29506
Nurse Practitioner (Family)
555 E CHEVES ST
FLORENCE, SC 29506
Internal Medicine
555 E CHEVES ST, MCLEOD REGIONAL MEDICAL CENTER
FLORENCE, SC 29506
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
555 E CHEVES ST
FLORENCE, SC 29506
Physician Assistant
555 E CHEVES ST
FLORENCE, SC 29506
Nurse Anesthetist, Certified Registered
555 E CHEVES ST
FLORENCE, SC 29506
Nurse Anesthetist, Certified Registered
555 E CHEVES ST
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.