Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Margaret Courtney Holtz, MD

Individual provider Pediatric Anesthesiology Physician · NPI 1477738300

Margaret Courtney Holtz, MD is an Anesthesiology in Marietta, Georgia. Graduated from University of Virginia School of Medicine in 2005, 21 years ago. Practices with Mak Anesthesia Holdings, LLC, a 368-clinician group and works from 5 locations. Licensed in Georgia.

Years since qualifying
21
Trained at
University of Virginia School of Medicine
Licensed in
GA
In the registry since
2008
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

677 Church St NE
Marietta, GA 30060-1101
Phone: (770) 794-0477
Fax: (770) 794-3108
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 8954 Hospital Dr, Douglasville, GA 30134-2272 — (770) 794-0477
  • 146 Bill Carruth Pkwy, Hiram, GA 30141-3749 — (770) 794-0477
  • 531 Roselane St Nw Ste 830, Marietta, GA 30060-6979 — (770) 794-0477
  • 2540 Windy Hill Rd Se, Marietta, GA 30067-8605 — (770) 794-0477

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 001441 (GA)
Pediatric Anesthesiology Physician Taxonomy 207LP3000X · Licence 061896 (GA)
Pain Medicine (Anesthesiology) Physician Taxonomy 207LP2900X · Licence 061896 (GA)
Pain Medicine Physician Taxonomy 208VP0000X · Licence 061896 (GA)
Interventional Pain Medicine Physician Taxonomy 208VP0014X · Licence 061896 (GA)

Record details

NPI number1477738300
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 9, 2008
Last updated in NPPESAugust 28, 2019

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Mak Anesthesia Holdings, Llc — 368 clinicians
Accepts Medicare assignment Not indicated
Practice locations5 on file with Medicare

Other providers in Marietta