Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. William T. Correll, DO

Individual provider Family Medicine Physician · NPI 1154371581

Dr. William T. Correll, DO is registered under Family Practice in Plymouth, Indiana. Graduated from Michigan State University College of Osteopathic Medicine in 1999, 27 years ago. Practices with Iha Health Services Corporation, a 1,146-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Indiana and Michigan.

Years since qualifying
27
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
IN, MI
In the registry since
2006
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1919 Lake Ave Ste 106
Plymouth, IN 46563-7830
Phone: (574) 335-5220
Fax: (574) 335-0859
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2332 Alpine Ave Nw, Grand Rapids, MI 49544-1955 — (616) 391-6220

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 02007492A (IN)
Family Medicine Physician Taxonomy 207Q00000X · Licence 5101014163 (MI)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 5101014163DO (MI)

Record details

NPI number1154371581
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 10, 2006
Last updated in NPPESJanuary 13, 2026
Certification dateJanuary 13, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1999 (27 years in practice)
Group practice Iha Health Services Corporation — 1146 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients142
Services billed 251 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Iha Health Services Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1146 clinicians in the practice; 12 are shown here.

Other providers in Plymouth