Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark Clifford Merlin, DO

Individual provider Anesthesiology Physician · NPI 1093899452

Mark Clifford Merlin, DO practises Anesthesiology in Atlanta, Georgia. Graduated from R Franklin University of Med & SCI/Chicago Medical School in 1983, 43 years ago. Practices with North Atlanta Anesthesia Professionals, LLC, a 543-clinician group and accepts Medicare assignment. Licensed in Florida and Georgia.

Years since qualifying
43
Trained at
R Franklin University of Med & SCI/Chicago Medical School
Licensed in
FL, GA
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1000 Johnson Ferry Rd
Atlanta, GA 30342-1606
Phone: (404) 851-1000
Fax: (404) 303-3759
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 31635 (GA)
Anesthesiology Physician Taxonomy 207L00000X · Licence OS8982 (FL)

Record details

NPI number1093899452
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedOctober 24, 2006
Last updated in NPPESJune 28, 2022
Certification dateJune 28, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolR FRANKLIN UNIVERSITY OF MED & SCI/CHICAGO MEDICAL SCHOOL
Graduated 1983 (43 years in practice)
Group practice North Atlanta Anesthesia Professionals, Llc — 543 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients446
Services billed 495 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at North Atlanta Anesthesia Professionals, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 543 clinicians in the practice; 12 are shown here.

Other providers in Atlanta