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

Individual provider Nephrology Physician · NPI 1639553605

Christina Mariyam Joy, MD is a Nephrology in Milwaukee, Wisconsin. Qualified in 2011, 15 years ago. Practices with The Medical College of Wisconsin Inc, a 2,093-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
15
Licensed in
WI
In the registry since
2015
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

9200 W Wisconsin Ave
Milwaukee, WI 53226-3522
Phone: (414) 805-3100
Fax: (262) 532-9584
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 76560 (WI)

Record details

NPI number1639553605
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 19, 2015
Last updated in NPPESJanuary 10, 2022
Certification dateJanuary 10, 2022

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice The Medical College Of Wisconsin Inc — 2093 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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