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

Mrs. Karen Kay Tumblin, NURSEPRACTITIONER

Individual provider Nurse Practitioner · NPI 1235604679

Mrs. Karen Kay Tumblin, NURSEPRACTITIONER is a Nurse Practitioner in Bay City, Michigan. Qualified in 2018, 8 years ago. Practices with McLaren Bay Region, a 111-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
8
Licensed in
MI
In the registry since
2018
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

200 S Wenona St
Bay City, MI 48706-8820
Phone: (989) 893-8116
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 4704254478 (MI)

Record details

NPI number1235604679
Entity typeIndividual (Type 1)
GenderFemale
Credentials NURSEPRACTITIONER
Sole proprietorYes
NPI enumeratedOctober 12, 2018
Last updated in NPPESOctober 12, 2018

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice McLaren Bay Region — 111 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 patients24
Services billed 24 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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 McLaren Bay Region

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 111 clinicians in the practice; 12 are shown here.

Other providers in Bay City