Christopher Charles Keen, M.D.
Pulmonary Disease Physician · Florence, SC
Christopher Charles Keen, M.D. is a pulmonary disease physician with a practice address in Florence, South Carolina, and NPI 1528324050, issued on Apr 10, 2012. Check the license (South Carolina MD52149, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Christopher Charles Keen
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- MD52149 SC
Self-reported in NPPES; status is on the state search - Practice location
- 555 E Cheves St, Florence, SC 29506
- Phone
- (843) 777-5622
- Enumerated
- Apr 10, 2012
- Record last updated
- Jan 18, 2024
- Medicare enrollment
- Enrolled (PECOS I20181025001067); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 202 in South Carolina → Look up another NPI →
Also registered at 555 E Cheves St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Emily Adams, PTPhysical Therapist1902003585
- Ka'Zija AdamsRegistered Nurse1528982121
- Roberto Aguilera, M.D.Internal Medicine Physician1649658089
- Tonya Alexander, FNP-BCHospice and Palliative Medicine (Internal Medicine) Physician1134606221
Verify Christopher Charles Keen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license MD52149Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
16 Medicare Part D claims for 13 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $29.60
2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Hospital Physician Services - Southeast Professional CorporationConway, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Charles Keen among 202 pulmonary disease physician records in South Carolina
Christopher Charles Keen, M.D. is one of 202 pulmonary disease physician records with a practice address in South Carolina. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 70% of them.
- NPI issued2012 · 70% of these records are older, 29% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2012 · median 2006 among the 152 with a school on file
- Record last updated2024 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in South Carolina
There are 202 pulmonary disease physician records in South Carolina.
All 202 in South Carolina → Every provider in Florence → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- John Atkins, MDFlorence, SC 295061487638169
- Mark Barnard, MDFlorence, SC 295061174563860
- Marwan Elya, MDFlorence, SC 295061124169479
- Ifeanyichukwu Eruchalu, M.D.Florence, SC 295061043234834
- Vinod Jona, M.D.Florence, SC 295061154361723
- Lorie Loreman, DOFlorence, SC 295061285612291
- Ramzy Al-Hourany, MDFlorence, SC 295051851554257
- Gary Anderson, MDFlorence, SC 295051699010983
Common questions
What is Christopher Charles Keen, M.D.'s NPI number?
Christopher Charles Keen, M.D.'s National Provider Identifier (NPI) is 1528324050, issued on Apr 10, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Charles Keen, M.D. located?
The NPPES record lists a practice address at 555 E Cheves St, Florence, SC, 29506. Phone: (843) 777-5622. Providers update this record themselves, so call before visiting.
How can I verify Christopher Charles Keen, M.D.'s license?
NPPES lists South Carolina license number MD52149, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher Charles Keen, M.D. prescribe under Medicare Part D?
In 2024, Christopher Charles Keen, M.D. had 16 Medicare Part D claims for 13 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.