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

Dr. Ronald Hansel Main, MD

Individual provider Cardiovascular Disease Physician · NPI 1063520526

Dr. Ronald Hansel Main, MD is a Cardiovascular Disease (Cardiology) in Carlsbad, California. Qualified in 1978, 48 years ago. Practices with Union Physician Services LLC, a 99-clinician group and accepts Medicare assignment. Licensed in California and Indiana.

Years since qualifying
48
Licensed in
CA, IN
In the registry since
2006
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

2604B El Camino Real Ste 275
Carlsbad, CA 92008-1214
Phone: (442) 888-4176
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence G40882 (CA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 01094694A (IN)

Record details

NPI number1063520526
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 26, 2006
Last updated in NPPESAugust 27, 2024
Certification dateAugust 27, 2024

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 1978 (48 years in practice)
Group practice Union Physician Services Llc — 99 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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