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

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