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

Dr. Charles A Duncan, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1215932462

Dr. Charles A Duncan, MD is a Critical Care (Intensivists) in San Antonio, Texas. Graduated from Medical College of Georgia School of Medicine in 1977, 49 years ago. Practices with Pulmonary Consultants of San Antonio PA, a 9-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
49
Trained at
Medical College of Georgia School of Medicine
Licensed in
TX
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.

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Practice location Address checks out

10007 Huebner Rd Ste 402
San Antonio, TX 78240
Phone: (210) 692-0361
Fax: (210) 692-0151
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence H2115 (TX)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence H2115 (TX)

Record details

NPI number1215932462
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 15, 2005
Last updated in NPPESAugust 12, 2025
Certification dateAugust 12, 2025

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesPULMONARY DISEASE
Medical schoolMEDICAL COLLEGE OF GEORGIA SCHOOL OF MEDICINE
Graduated 1977 (49 years in practice)
Group practice Pulmonary Consultants Of San Antonio Pa — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in San Antonio