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

Dr. Daniel F. Callahan, MD

Individual provider Pulmonary Disease Physician · NPI 1598761223

Dr. Daniel F. Callahan, MD is a Pulmonary Disease in Alpharetta, Georgia. Graduated from Medical College of Georgia School of Medicine in 1985, 41 years ago. Practices with Northside Primary Care Professional Services, LLC, a 311-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Georgia.

Years since qualifying
41
Trained at
Medical College of Georgia School of Medicine
Licensed in
GA
In the registry since
2005
Specialties on file
2
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

3400 Old Milton Pkwy # C Ste 425
Alpharetta, GA 30005-3707
Phone: (770) 343-8760
Fax: (770) 664-2101
Show map & directions

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

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 033044 (GA)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 033044 (GA)

Record details

NPI number1598761223
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2005
Last updated in NPPESApril 26, 2021
Certification dateApril 26, 2021

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Medical schoolMEDICAL COLLEGE OF GEORGIA SCHOOL OF MEDICINE
Graduated 1985 (41 years in practice)
Group practice Northside Primary Care Professional Services,Llc — 311 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Alpharetta