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

Mr. David B Leff, DO

Individual provider Gastroenterology Physician · NPI 1619956505

Mr. David B Leff, DO is a Gastroenterology in Mesa, Arizona. Qualified in 1991, 35 years ago. Practices with Central Arizona Medical Associates PC, a 12-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
35
Licensed in
AZ
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3638 E Southern Ave Ste C101
Mesa, AZ 85206-2563
Phone: (480) 564-3763
Fax: (480) 716-3723
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 3220 (AZ)

Record details

NPI number1619956505
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJanuary 10, 2006
Last updated in NPPESJanuary 30, 2026
Certification dateJanuary 30, 2026
Mailing address3638 E Southern Ave Ste C101, Mesa, AZ 85206-2563

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Central Arizona Medical Associates Pc — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Mesa