Browse Health
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (12)

The overall average patient rating of Dr. Daniel Callahan is Excellent. Dr. Callahan has been reviewed by 31 patients who have provided 12 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.2
Promptness 4.5
Courteous Staff 4.2
Accurate Diagnosis 4.5
Bedside Manner 4.5
Spends Time with Me 4.4
Follows Up After Visit 4.3

Specialties & Research

Dr. Daniel Callahan, MD is board certified in Pulmonary Disease.

  • He has special expertise in 5 areas:
  • Asthma
  • Bronchoscopy
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Pneumonia
  • Respiratory Failure

Education & Awards

Dr. Callahan graduated from Medical College of Georgia, Augusta. He has 4 awards.

Patients' Choice 5th Anniversary Award (2012)
Patients' Choice Award (2008 - 2012)
Compassionate Doctor Recognition (2009 - 2012, 2014)
On-Time Doctor Award (2009)


Dr. Callahan has 5 hospital affiliations:

  • Northside Hospital 
  • Northside Forsyth Hospital 

> > > > Dr. Daniel Callahan, MD

Similar doctors nearby

Dr. Gayle Mason

Pulmonary Disease
32 years experience
Alpharetta, GA

Dr. Matthew Hazen

5 years experience
Alpharetta, GA

Dr. Kevin Kirchner

Pediatric Pulmonology
27 years experience
Alpharetta, GA

Dr. LeRoy Graham

32 years experience
Alpharetta, GA

Dr. Burton Lesnick

Pediatric Pulmonology
23 years experience
Alpharetta, GA

Dr. Peter Scott

Pediatric Pulmonology
36 years experience
Alpharetta, GA
Search All Similar Doctors
Additional Information
Dr. Daniel F Callahan MD is a male Pulmonologist, has 26 years of experience and practices in Pulmonary Disease.
Where does Dr. Daniel F. Callahan practice?
Dr. Daniel Callahan has 2 office locations.
Dr. Daniel Callahan practices Pulmonary Disease near Alpharetta, GA.
Additional practice locations include: Cumming, GA.
See Alpharetta Pulmonologists.