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

Gregory Morris Giesler, MD

Individual provider Cardiovascular Disease Physician · NPI 1477518454

Gregory Morris Giesler, MD is a Cardiovascular Disease (Cardiology) in Pasadena, California. Graduated from Chicago College of Medicine and Surgery in 1999, 27 years ago. Practices with Southern California Heart Specialists, a 6-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
27
Trained at
Chicago College of Medicine and Surgery
Licensed in
CA
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

55 E California Blvd 3rd Fl
Pasadena, CA 91105-3944
Phone: (626) 793-1227
Fax: (626) 793-3794
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence A75160 (CA)

Record details

NPI number1477518454
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 20, 2006
Last updated in NPPESApril 12, 2011

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolCHICAGO COLLEGE OF MEDICINE AND SURGERY
Graduated 1999 (27 years in practice)
Group practice Southern California Heart Specialists — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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