Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Mark W. Lastarza, MD

Individual provider Internal Medicine Physician · NPI 1831165448

Mark W. Lastarza, MD practises Internal Medicine in Ormond Beach, Florida. Graduated from Washington University School of Medicine in 1995, 31 years ago. Practices with Ability Health Services, Inc, a 1,232-clinician group and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
31
Trained at
Washington University School of Medicine
Licensed in
FL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

335 Clyde Morris Blvd Ste 290
Ormond Beach, FL 32174-5959 Not confirmed with CMS for 19 years — call before visiting
Phone: (386) 672-3219
Fax: (386) 672-3160
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence ME0075627 (FL)

Record details

NPI number1831165448
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 23, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Ability Health Services, Inc — 1232 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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.

Medicare patients918
Services billed 5,680 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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. Those with a page here are linked.

Colleagues at Ability Health Services, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1232 clinicians in the practice; 12 are shown here.

Other providers in Ormond Beach