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

Karen M Guzzetta, MD

Individual provider Internal Medicine Physician · NPI 1558446104

Karen M Guzzetta, MD is an Internal Medicine in Denver, Colorado. Graduated from Midwestern University, Chicago College of Osteopathic Med in 1996, 30 years ago. Practices with Portercare Adventist Health System, a 767-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
30
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
CO
In the registry since
2006
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

2525 S Downing St Porter Pre-Surgical Evaluation
Denver, CO 80210-5817
Phone: (303) 765-6892
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 37553 (CO)

Record details

NPI number1558446104
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 25, 2006
Last updated in NPPESSeptember 14, 2011
Mailing address2525 S Downing St, Porter Pre-Surgical Evaluation, Denver, CO 80210-5817

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 1996 (30 years in practice)
Group practice Portercare Adventist Health System — 767 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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