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

Gary S. Allen, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1154327872

Gary S. Allen, MD is a Thoracic Surgery in Littleton, Colorado. Graduated from Albany Medical College of Union University in 1991, 35 years ago. Practices with Florida Hospital Healthcare Partners, Inc, a 605-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Colorado and Florida.

Years since qualifying
35
Trained at
Albany Medical College of Union University
Licensed in
CO, FL
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

7780 S Broadway Ste 170
Littleton, CO 80122-2633
Phone: (303) 269-2920
Fax: (303) 269-2921
Show map & directions

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

Additional practice locations (2)

  • 1222 S Orange Ave Fl 3, Orlando, FL 32806-1215 — (321) 841-3356
  • 3310 Waterman Way, Tavares, FL 32778-5250 — (352) 343-1216

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence ME80476 (FL)
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Taxonomy 208G00000X · Licence DR.0073193 (CO)

Record details

NPI number1154327872
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2005
Last updated in NPPESDecember 10, 2025
Certification dateDecember 10, 2025
Mailing address7780 S Broadway Ste 170, Littleton, CO 80122-2633

Medicare enrollment

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

Medicare specialtyTHORACIC SURGERY
Medical schoolALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Graduated 1991 (35 years in practice)
Group practice Florida Hospital Healthcare Partners, Inc — 605 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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