Gregory GieslerMD
Cardiology·Pasadena, CA
Gregory Giesler, MD is a Cardiology provider in Pasadena, CA, as of July 2026.
- NPI1477518454
- Registered2006
- Class of1999
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Gregory Giesler at a glance
- Provider
- Gregory Giesler
- Credential
- MD
- Specialty
- Cardiovascular Disease (Cardiology)
- Procedures
- Cardiology CPT codes
- Location
- Pasadena, CA
- Medical school
- Chicago College of Medicine and Surgery
- Graduated
- 1999
- NPI registered
- 2006
- NPI
- 1477518454
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Gregory Giesler practice?
Gregory Giesler, MD is based in Pasadena, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Gregory Giesler's NPI number?
Gregory Giesler's National Provider Identifier (NPI) is 1477518454, registered in 2006. Specialty on record: Cardiovascular Disease (Cardiology); credential MD.
Where did Gregory Giesler go to medical school?
Gregory Giesler, MD attended Chicago College of Medicine and Surgery, graduating in 1999.
How many Cardiology providers in California work at ambulatory surgery centers?
444 Cardiology surgeons and proceduralists in California are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Gregory Giesler among them. The California Cardiology directory lists each one by city with credential, NPI, and center affiliations.
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