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

Dr. John Allan Walker, MD

Individual provider Internal Medicine Physician · NPI 1285714386

Dr. John Allan Walker, MD is an Internal Medicine Physician in Modesto, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
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

820 Scenic Dr
Modesto, CA 95350-6131
Phone: (209) 558-8804
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 G64249 (CA)

Record details

NPI number1285714386
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 16, 2006
Last updated in NPPESJuly 31, 2007

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