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

Sean W Sullivan, DO

Individual provider Physical Medicine & Rehabilitation Physician · NPI 1194762286

Sean W Sullivan, DO is registered under Family Practice in Watervliet, Michigan. Graduated from Michigan State University College of Osteopathic Medicine in 1998, 28 years ago. Practices with Lakeland Community Hospital Watervliet, a 65-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
28
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI
In the registry since
2006
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

400 Medical Park Dr
Watervliet, MI 49098-9225
Phone: (269) 463-3600
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Medicine & Rehabilitation Physician (primary) Taxonomy 208100000X · Licence 5101014473 (MI)

Record details

NPI number1194762286
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 31, 2006
Last updated in NPPESJuly 9, 2020
Certification dateJuly 9, 2020

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesPHYSICAL MEDICINE AND REHABILITATION
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1998 (28 years in practice)
Group practice Lakeland Community Hospital Watervliet — 65 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients161
Services billed 972 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

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. Those with a page here are linked.

  • Lakeland Hospital, St Joseph Hospital · St Joseph, MI · listed as Lakeland Hospital at Niles and St Joseph, Inc
  • Corewell Health Watervliet Hospital Hospital · Watervliet, MI
  • Corewell Health Lakeland Hospitals St Joseph Hospital Home health agency · Benton Harbor, MI

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Lakeland Community Hospital Watervliet

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 65 clinicians in the practice; 12 are shown here.

Other providers in Watervliet