Dennis GrewalDO
Cardiology·Santa Ana, CA
Dennis Grewal, DO is a Cardiology provider in Santa Ana, CA, as of July 2026.
- NPI1538556592
- Registered2015
- Class of2015
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Dennis Grewal at a glance
- Provider
- Dennis Grewal
- Credential
- DO
- Specialty
- Cardiovascular Disease (Cardiology)
- Procedures
- Cardiology CPT codes
- Location
- Santa Ana, CA
- Medical school graduation
- 2015
- NPI registered
- 2015
- NPI
- 1538556592
- 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 Dennis Grewal practice?
Dennis Grewal, DO is based in Santa Ana, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Dennis Grewal's NPI number?
Dennis Grewal's National Provider Identifier (NPI) is 1538556592, registered in 2015. Specialty on record: Cardiovascular Disease (Cardiology); credential DO.
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, Dennis Grewal among them. The California Cardiology directory lists each one by city with credential, NPI, and center affiliations.
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