Mary Isabel Ragsdale, MD

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

• Ventura County Medical Center Hospital · Ventura, CA
• Livingston Memorial Visiting Nurse Association Home health agency · Ventura, CA

Colleagues at County of Ventura

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 274 clinicians in the practice; 12 are shown here.

• Darin Chambers, MD Family Medicine Physician · Oxnard, CA
• Dr. George Chang Chien, DO Pain Medicine Physician · Ventura, CA
• Daniel Arturo Cox, MD Internal Medicine Physician · San Francisco, CA
• Christopher Dru, MD Urology Physician · Ventura, CA
• Artur Fahradyan, MD Surgery Physician · Westlake Village, CA
• Annapurna Karra, MD Student in an Organized Health Care Education/Training Program · Moorpark, CA
• Matthew Lamon, DO Student in an Organized Health Care Education/Training Program · Ventura, CA
• Kenneth Leong, MD Surgery of the Hand (Plastic Surgery) Physician · Ventura, CA
• Laura Murphy, DO Student in an Organized Health Care Education/Training Program · San Diego, CA
• Thuy Trang Jennie Nguyen Student in an Organized Health Care Education/Training Program · Ventura, CA
• Samuel K. Phang, MD Student in an Organized Health Care Education/Training Program · Oxnard, CA
• Dr. Paul M. Sanchez, MD Gastroenterology Physician · Oxnard, CA

Other providers in Ventura

• Dr. Thomas John Horn, MD

  Individual Adult Reconstructive Orthopaedic Surgery Physician · NPI 1194781005

  3525 Loma Vista Rd Ste A, Ventura, CA 93003-3165 · (805) 641-6415

• Dr. Robert Morris O'Hollaren, MD

  Individual Adult Reconstructive Orthopaedic Surgery Physician · NPI 1801852710

  1191 Church St, Ventura, CA 93001-2148 · (805) 320-6761

• Mario Vargas-Vila, MD, PHD

  Individual Adult Reconstructive Orthopaedic Surgery Physician · NPI 1134501307

  4949 Market St, Ventura, CA 93003-7851 · (888) 249-2112