NPPES file of Aug 9, 2026

Mark Clifford Merlin, DO

Anesthesiology Physician · Atlanta, GA

Mark Clifford Merlin, DO is an anesthesiology physician with a practice address in Atlanta, Georgia, and NPI 1093899452, issued on Oct 24, 2006. Check the license (Georgia 31635, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093899452
Name
Mark Clifford Merlin
Credential
DO
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
31635 GA
OS8982 FL
Self-reported in NPPES; status is on the state search
Practice location
1000 Johnson Ferry RD, Atlanta, GA 30342
Phone
(404) 851-1000
Enumerated
Oct 24, 2006
Record last updated
Jun 28, 2022
Fax
(404) 303-3759
Medicare enrollment
Enrolled (PECOS I20180822001923); accepts Medicare assignment
Medical or professional school
R Franklin University Of Med & Sci/Chicago Medical School, 1983
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1000 Johnson Ferry RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Imad Abossallue, M.D.Nuclear Medicine Physician1134359599
  2. Joshua AddisonAnesthesiologist Assistant1588036958
  3. Rasaki Adebisi, PAAAAnesthesiologist Assistant1841626330
  4. Titilola Adeboye, CNPPsychiatric/Mental Health Nurse Practitioner1811536386
  5. Oluwatoyin Adedapo-JimohAnesthesiologist Assistant1841907920
  6. Lynsey AdkinsFamily Nurse Practitioner1285003400

Verify Mark Clifford Merlin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersGeorgia Composite Medical Board
    Search for license 31635
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Georgia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $40.40

2 payments; by number, the most common kind was food and beverage; the largest payer was Pacira Pharmaceuticals Incorporated. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Merlin$40.40
  2. Specialty average$669.59

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

  1. North Atlanta Anesthesia Professionals, LLCAtlanta, GA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark Clifford Merlin among 1,410 anesthesiology physician records in Georgia

Mark Clifford Merlin, DO 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 fileYes · 68% of these records are
  • Graduated1983 · median 2005 among the 954 with a school on file
  • Record last updated2022 · 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).

473 anesthesiology physician records list a practice address in Atlanta

They are 473 of the 31,476 NPPES records with a practice address in Atlanta, and 1,410 anesthesiology physician records in Georgia.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Robert Arasi, MDAtlanta, GA 303421144216326
  2. Richard Ballard, MDAtlanta, GA 303421134115314
  3. Laurie Barone, MDAtlanta, GA 303421770579955
  4. John Blair, MDAtlanta, GA 303421689660862
  5. Curtis Carl, MDAtlanta, GA 303421538154802
  6. Anthony Fister, MDAtlanta, GA 303421629064704
  7. Stephen Grice, MDAtlanta, GA 303421043206139
  8. Bruce Hines, MDAtlanta, GA 303421205822301

Common questions

What is Mark Clifford Merlin, DO's NPI number?

Mark Clifford Merlin, DO's National Provider Identifier (NPI) is 1093899452, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Clifford Merlin, DO located?

The NPPES record lists a practice address at 1000 Johnson Ferry RD, Atlanta, GA, 30342. Phone: (404) 851-1000. Providers update this record themselves, so call before visiting.

How can I verify Mark Clifford Merlin, DO's license?

NPPES lists Georgia license number 31635, 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.

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.