Mark Carroll Guerdan, D.O.
Anesthesiology Physician · Riverdale, GA
Mark Carroll Guerdan, D.O. is an anesthesiology physician with a practice address in Riverdale, Georgia, and NPI 1326089574, issued on Jun 9, 2006. Check the license (Georgia 61081, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Carroll Guerdan
- Credential
- D.O.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 61081 GA
061081 GA
31403 KY
62257 NY
Self-reported in NPPES; status is on the state search - Practice location
- 6525 Professional PL, Riverdale, GA 30274
- Phone
- (404) 254-5496
- Enumerated
- Jun 9, 2006
- Record last updated
- Jul 14, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (404) 254-5829
- Medicaid IDs
- 003135346A GA
003135345A GA - Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,410 in Georgia → Look up another NPI →
Also registered at 6525 Professional PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charles Colbert, C.S.T./C.F.A.Surgical Assistant1770709628
- Tanzie Morgan, R.N.Licensed Practical Nurse1134568330
- Feroze Yusufji, M.D.Specialist1992738553
Verify Mark Carroll Guerdan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 61081Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average anesthesiology physician in 2024
34 Medicare Part D claims for 13 beneficiaries, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Alprazolam11 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.
Mark Carroll Guerdan among 1,410 anesthesiology physician records in Georgia
Mark Carroll Guerdan, D.O. is one of 1,410 anesthesiology physician records with a practice address in Georgia. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 51% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2014 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Georgia
There are 1,410 anesthesiology physician records in Georgia.
All 1,410 in Georgia → Every provider in Riverdale → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- William Nunez, M.D.Peachtree City, GA 302691619287778
- Adebola Arole, M.D.Stockbridge, GA 302811740370758
- Virlyn Bishop, MDStockbridge, GA 302811255516183
- David Burns, MDStockbridge, GA 302811316999832
- Keith Carringer, MDStockbridge, GA 302811386612281
- Jonathan Diruzzo, MDStockbridge, GA 302811720269699
- Rebecca Downey, MDStockbridge, GA 302811922202340
- Okera Hanshaw, M.D.Stockbridge, GA 302811801093703
Common questions
What is Mark Carroll Guerdan, D.O.'s NPI number?
Mark Carroll Guerdan, D.O.'s National Provider Identifier (NPI) is 1326089574, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Carroll Guerdan, D.O. located?
The NPPES record lists a practice address at 6525 Professional PL, Riverdale, GA, 30274. Phone: (404) 254-5496. Providers update this record themselves, so call before visiting.
How can I verify Mark Carroll Guerdan, D.O.'s license?
NPPES lists Georgia license number 61081, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Carroll Guerdan, D.O. prescribe under Medicare Part D?
In 2024, Mark Carroll Guerdan, D.O. had 34 Medicare Part D claims for 13 beneficiaries; the average among anesthesiology physician prescribers was 402. 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.