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

Dr. Mary Jean Cuaycong, MD

Individual provider Internal Medicine Physician · NPI 1457681918

Dr. Mary Jean Cuaycong, MD is an Internal Medicine in Fort Defiance, Arizona. Qualified in 1986, 40 years ago. Practices with Yakima Valley Memorial Physicians, a 401-clinician group and accepts Medicare assignment. Licensed in Hawaii, Iowa and Washington.

Years since qualifying
40
Licensed in
HI, IA, WA
In the registry since
2010
Specialties on file
4
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

Corner Of Route N12 And N7
Fort Defiance, AZ 86504-0649
Phone: (928) 729-8000
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 MD-24562 (HI)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD00048231 (WA)
Ophthalmology Physician Taxonomy 207W00000X · Licence MD00048231 (WA)
Hospitalist Physician Taxonomy 208M00000X · Licence 49540 (IA)

Record details

NPI number1457681918
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 6, 2010
Last updated in NPPESJuly 24, 2025
Certification dateJuly 17, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesOPHTHALMOLOGY
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Yakima Valley Memorial Physicians — 401 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Other providers in Fort Defiance