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

Jacob John Baker, MD, PHD

Individual provider Internal Medicine Physician · NPI 1093377012

Jacob John Baker, MD, PHD is an Internal Medicine in Grand Rapids, Michigan. Qualified in 2019, 7 years ago. Practices with Western Michigan University School of Medicine, a 76-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
7
Licensed in
MI
In the registry since
2019
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

25 Michigan St NE Ste 2100
Grand Rapids, MI 49503-2526
Phone: (616) 391-3777
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 4351045602 (MI)

Record details

NPI number1093377012
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 29, 2019
Last updated in NPPESMay 31, 2022
Certification dateMay 31, 2022
Mailing address25 Michigan St Ne Ste 2100, Grand Rapids, MI 49503-2526

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Western Michigan University School Of Medicine — 76 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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