Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. John Lawrence Schaller, MD, MPH

Individual provider Internal Medicine Physician · NPI 1093830333

Dr. John Lawrence Schaller, MD, MPH is an Internal Medicine Physician in Phoenix, Arizona. Practices as a sole proprietor. Licensed in Arizona and California.

Licensed in
AZ, CA
In the registry since
2007
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MPH — Master of Public Health
A graduate degree in population health.

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Practice location Address checks out

4645 E Cotton Center Blvd Bldg 1 # 200
Phoenix, AZ 85040-8874
Phone: (602) 659-1123
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Preventive Medicine/Occupational Environmental Medicine Physician (primary) Taxonomy 2083P0500X · Licence G66859 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 17949 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence G66859 (CA)
Preventive Medicine/Occupational Environmental Medicine Physician Taxonomy 2083P0500X · Licence 17949 (AZ)

Record details

NPI number1093830333
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MPH
Sole proprietorYes
NPI enumeratedMarch 19, 2007
Last updated in NPPESSeptember 11, 2025

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