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

Nathaniel Fastenberg, MD

Individual provider Medical Oncology Physician · NPI 1417942905

Nathaniel Fastenberg, MD is a Medical Oncology Physician in Mesa, Arizona. Licensed in Arizona. Registered with an NPI since 2005.

Licensed in
AZ
In the registry since
2005
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

6111 E Arbor Ave
Mesa, AZ 85206-6059
Phone: (480) 981-1326
Fax: (480) 981-1445
Show map & directions

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

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 11622 (AZ)

Record details

NPI number1417942905
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 12, 2005
Last updated in NPPESJune 4, 2014
Mailing addressPo Box 6423, Chandler, AZ 85246-6423

Other providers in Mesa