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

Dr. James Nelson Demuth, MD

Individual provider Internal Medicine Physician · NPI 1568568665

Dr. James Nelson Demuth, MD is an Internal Medicine in Lansing, Michigan. Graduated from University of Texas Medical Branch at Galveston in 2000, 26 years ago. Practices with Edward W Sparrow Hospital Association, a 694-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
26
Trained at
University of Texas Medical Branch at Galveston
Licensed in
MI
In the registry since
2006
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

1200 E Michigan Ave Ste 530
Lansing, MI 48912-1800
Phone: (517) 364-5880
Fax: (517) 364-5887
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 4301076699 (MI)

Record details

NPI number1568568665
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 15, 2006
Last updated in NPPESFebruary 10, 2021
Certification dateFebruary 10, 2021
Mailing addressPo Box 13008, Lansing, MI 48901-3008

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduated 2000 (26 years in practice)
Group practice Edward W Sparrow Hospital Association — 694 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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