Mark Alan Chastain, MD
Dermatology Physician · Marietta, GA
Mark Alan Chastain, MD is a dermatology physician with a practice address in Marietta, Georgia, and NPI 1790756138, issued on Feb 1, 2006. Check the license (Georgia 048995, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Alan Chastain
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 048995 GA
Self-reported in NPPES; status is on the state search - Practice location
- 835 Cogburn Ave NW, Marietta, GA 30060
- Phone
- (770) 422-5557
- Enumerated
- Feb 1, 2006
- Record last updated
- Jun 12, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (770) 422-5456
- Medicaid ID
- 339883816A GA
- Medicare enrollment
- Enrolled (PECOS I20050920000784); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 349 in Georgia → Look up another NPI →
Also registered at 835 Cogburn Ave NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Ades, PA-CPhysician Assistant1518207950
- Jennifer Buckley, MDDermatology Physician1215908652
- Matthew Hughes, M.DDermatology Physician1215220454
- Alexandra Palgon, PA-CPhysician Assistant1518262450
- Anita Shetty, M.D.Dermatology Physician1649477035
- Carolyn Sims, PA-CMedical Physician Assistant1407957087
Verify Mark Alan Chastain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 048995Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.0 times the Medicare Part D claims of the average dermatology physician in 2024
3,177 Medicare Part D claims for 1,650 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. 1,094 claims were for opioids.
Most prescribed
- Cephalexin1,484 claims
- Tramadol Hcl947 claims
- Doxycycline Hyclate247 claims
- Hydrocodone-Acetaminophen122 claims
- Mupirocin77 claims
- Valacyclovir54 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: $1,350.55
35 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 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
- Aqua Dermatology OF Georgia PCCartersville, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Alan Chastain among 349 dermatology physician records in Georgia
Mark Alan Chastain, MD is one of 349 dermatology physician records with a practice address in Georgia. 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 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 56% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1996 · median 2006 among the 260 with a school on file
- Record last updated2020 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Georgia
There are 349 dermatology physician records in Georgia.
All 349 in Georgia → Every provider in Marietta → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Jim Adkins, PAMarietta, GA 300601164442562
- Jennifer Buckley, MDMarietta, GA 300601215908652
- Jamie Groh, D.O.Marietta, GA 300601497082929
- Robert Harper, MEDICAL DOCTORMarietta, GA 300601982662599
- Jessica Harris, M.D.Marietta, GA 300601417360322
- Matthew Hughes, M.DMarietta, GA 300601215220454
- Jennifer Jones, M.D.Marietta, GA 300601114985108
- Reagan Morgan, PA-CMarietta, GA 300601295413805
Common questions
What is Mark Alan Chastain, MD's NPI number?
Mark Alan Chastain, MD's National Provider Identifier (NPI) is 1790756138, issued on Feb 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Alan Chastain, MD located?
The NPPES record lists a practice address at 835 Cogburn Ave NW, Marietta, GA, 30060. Phone: (770) 422-5557. Providers update this record themselves, so call before visiting.
How can I verify Mark Alan Chastain, MD's license?
NPPES lists Georgia license number 048995, 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 Alan Chastain, MD prescribe under Medicare Part D?
In 2024, Mark Alan Chastain, MD had 3,177 Medicare Part D claims for 1,650 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Mark Alan Chastain, MD'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.