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

Individual provider Internal Medicine Physician · NPI 1285096032

Mary-Jane Williams, MD is a Gastroenterology in Scottsdale, Arizona. Qualified in 2007, 19 years ago. Practices with Partners Physician Group, a 415-clinician group and accepts Medicare assignment. Licensed in Arizona, New Mexico and Nevada.

Years since qualifying
19
Licensed in
AZ, NM, NV
In the registry since
2016
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

13400 E Shea Blvd
Scottsdale, AZ 85259-5499
Phone: (480) 301-8000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 69010 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence 18189 (NV)
Gastroenterology Physician Taxonomy 207RG0100X · Licence MD2023-1313 (NM)

Record details

NPI number1285096032
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 22, 2016
Last updated in NPPESJuly 17, 2025
Certification dateJuly 17, 2025

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Partners Physician Group — 415 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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