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

Dr. Michael Lloyd Ridner, MD

Individual provider Cardiovascular Disease Physician · NPI 1548231723

Dr. Michael Lloyd Ridner, MD is a Cardiovascular Disease (Cardiology) in Huntsville, Alabama. Graduated from University of Oklahoma College of Medicine in 1982, 44 years ago. Practices with Hh Heart Center, LLC, a 92-clinician group and accepts Medicare assignment. Licensed in Alabama.

Years since qualifying
44
Trained at
University of Oklahoma College of Medicine
Licensed in
AL
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

930 Franklin St SE
Huntsville, AL 35801-4312
Phone: (256) 539-4080
Fax: (256) 539-4099
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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 14612 (AL)

Record details

NPI number1548231723
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 27, 2006
Last updated in NPPESSeptember 30, 2009

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 1982 (44 years in practice)
Group practice Hh Heart Center, Llc — 92 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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