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

Mark S Zaremba, MD

Individual provider Internal Medicine Physician · NPI 1023094273

Mark S Zaremba, MD is a Cardiovascular Disease (Cardiology) in Laguna Hills, California. Graduated from Boston University School of Medicine in 1975, 51 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
51
Trained at
Boston University School of Medicine
Licensed in
CA
In the registry since
2005
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

25401 Cabot Rd Ste 107
Laguna Hills, CA 92653-5513
Phone: (949) 273-8085
Fax: (949) 273-8088
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 G38301 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence G38301 (CA)

Record details

NPI number1023094273
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 20, 2005
Last updated in NPPESAugust 30, 2010

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesINTERNAL MEDICINE
Medical schoolBOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1975 (51 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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