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

Dr. Johnathan Nguyen, MD

Individual provider Internal Medicine Physician · NPI 1720281454

Dr. Johnathan Nguyen, MD is a Hospitalist in Kalamazoo, Michigan. Graduated from University of Washington School of Medicine in 2003, 23 years ago. Practices with South Sound Inpatient Physicians PLLC, a 427-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Michigan and Washington.

Years since qualifying
23
Trained at
University of Washington School of Medicine
Licensed in
MI, WA
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.

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Practice location Address checks out

1000 Oakland Dr
Kalamazoo, MI 49008-1282
Phone: (269) 337-4400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2000 Hospital Drive, Sedro Woolley, WA 98284-1282 — (360) 856-7581

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 4301083524 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD60034280 (WA)
Pediatrics Physician Taxonomy 208000000X · Licence 4301083524 (MI)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 4301083524 (MI)

Record details

NPI number1720281454
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 8, 2007
Last updated in NPPESJune 26, 2023
Certification dateJune 26, 2023

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice South Sound Inpatient Physicians Pllc — 427 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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