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

Colin Hoffmann Holtze, MD

Individual provider Internal Medicine Physician · NPI 1275825846

Colin Hoffmann Holtze, MD is an Internal Medicine in Ypsilanti, Michigan. Graduated from University of Iowa, Rj & L Carver College of Medicine in 2011, 15 years ago. Practices with Iha Health Services Corporation, a 1,146-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
15
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
MI
In the registry since
2011
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

5333 McAuley Dr Rm 3111
Ypsilanti, MI 48197-1098
Phone: (734) 712-7688
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 4301106884 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 4301106884 (MI)

Record details

NPI number1275825846
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 13, 2011
Last updated in NPPESJuly 23, 2021
Certification dateJuly 23, 2021
Mailing address24 Frank Lloyd Wright Dr Lbby J2000, Ann Arbor, MI 48105-9484

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPULMONARY DISEASE
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice Iha Health Services Corporation — 1146 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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