Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Loretta Sullivan-Chang, MD

Individual provider Internal Medicine Physician · NPI 1972780062

Dr. Loretta Sullivan-Chang, MD is an Internal Medicine in Greenwood Village, Colorado. Graduated from University of Colorado School of Medicine, Denver in 2005, 21 years ago. Practices with Mauricio Waintrub, MD, PC, a 27-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and Colorado.

Years since qualifying
21
Trained at
University of Colorado School of Medicine, Denver
Licensed in
CA, CO
In the registry since
2008
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

4950 S Yosemite St # F2-365
Greenwood Village, CO 80111
Phone: (650) 847-7287
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 875 Blake Wilbur Dr, Stanford, CA 94305-5820 — (650) 498-6000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 49624 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence A100131 (CA)

Record details

NPI number1972780062
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 30, 2008
Last updated in NPPESApril 28, 2025
Certification dateApril 28, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 2005 (21 years in practice)
Group practice Mauricio Waintrub, M.D., P.C — 27 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Greenwood Village