Mark Gary Buchanan, M.D.
Urology Physician · Charleston, SC
Mark Gary Buchanan, M.D. is a urology physician with a practice address in Charleston, South Carolina, and NPI 1104825637, issued on Jul 18, 2005. Check the license (South Carolina 019842, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mark Gary Buchanan
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 019842 SC
Self-reported in NPPES; status is on the state search - Practice location
- 1470 Tobias Gadson Blvd, Charleston, SC 29407
- Phone
- (843) 556-7060
- Enumerated
- Jul 18, 2005
- Record last updated
- Feb 17, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (843) 556-9960
- Medicaid ID
- 198427 SC
- Medicare enrollment
- Enrolled (PECOS I20060725000136); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest urology physician records → All 229 in South Carolina → Look up another NPI →
Also registered at 1470 Tobias Gadson Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Bielsky, M.D.Urology Physician1023017589
- George Del Porto, M.D.Urology Physician1689673881
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- Ward Katsanis, MDGynecologic Oncology Physician1659377851
Verify Mark Gary Buchanan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 019842Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% more Medicare Part D claims than the average urology physician in 2024
1,718 Medicare Part D claims for 563 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. 58 claims were for opioids.
Most prescribed
- Tamsulosin Hcl533 claims
- Myrbetriq173 claims
- Finasteride164 claims
- Sulfamethoxazole-Trimethoprim98 claims
- Ciprofloxacin Hcl93 claims
- Solifenacin Succinate61 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $781.87
37 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 9,340 providers of this specialty with any payment received $3,800.04 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
- Lowcountry Urology Clinics, PACharleston, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Gary Buchanan among 229 urology physician records in South Carolina
Mark Gary Buchanan, M.D. is one of 229 urology physician records with a practice address in South Carolina. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 82% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1996 · median 2000 among the 147 with a school on file
- Record last updated2017 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in South Carolina
There are 229 urology physician records in South Carolina.
All 229 in South Carolina → Every provider in Charleston → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Stephen Bielsky, M.D.Charleston, SC 294071023017589
- John Britton, M. D.Charleston, SC 294071356394126
- George Del Porto, M.D.Charleston, SC 294071689673881
- Ian Marshall, M. D.Charleston, SC 294071255384053
- Alexander Ramsay, M.D.Charleston, SC 294071871592089
- Bradley Steele, M. D.Charleston, SC 294071811940646
- Case Wood, MDCharleston, SC 294071316305881
- Theodore Brisson, M.D.North Charleston, SC 294061699759563
Common questions
What is Mark Gary Buchanan, M.D.'s NPI number?
Mark Gary Buchanan, M.D.'s National Provider Identifier (NPI) is 1104825637, issued on Jul 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Gary Buchanan, M.D. located?
The NPPES record lists a practice address at 1470 Tobias Gadson Blvd, Charleston, SC, 29407. Phone: (843) 556-7060. Providers update this record themselves, so call before visiting.
How can I verify Mark Gary Buchanan, M.D.'s license?
NPPES lists South Carolina license number 019842, 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 Mark Gary Buchanan, M.D. prescribe under Medicare Part D?
In 2024, Mark Gary Buchanan, M.D. had 1,718 Medicare Part D claims for 563 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
What is Mark Gary Buchanan, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.