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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. RONALD KOEHLER DO
NPI 1104857978
Family Medicine in Bay City, MI

Active since July 06, 2006
4175 N EUCLID AVE, SUITE 3, BAY CITY, MI 48706(989) 667-0491(989) 667-0493 Get Directions Write a Review

NPPES record last updated: September 6, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

About Dr. Ronald Koehler Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. RONALD KOEHLER DO (NPI 1104857978) is an individual family medicine provider in Bay City, Michigan, licensed in Michigan (RK07099) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1104857978
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. RONALD KOEHLERCredential: DO
Location Address4175 N EUCLID AVE, SUITE 3Bay City, MI 48706-2483
Mailing Address1003 Woodside AveEssexville, MI 48732-1234 · (989) 892-7722 · Fax (989) 892-7455
Phone(989) 667-0491
Fax(989) 667-0493
Sole ProprietorNo
Enumeration DateJuly 6, 2006
Last NPPES UpdateSeptember 6, 2026
✔ NPI 1104857978 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MI · RK07099
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
4175 N EUCLID AVE, Bay City, MI 48706
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Other Identifiers 6

Other0P43930MI · Medicare Group
OtherRK007099Bcbs
Other0Z96017MI · Medicare Ptan
Medicaid5176034MI
Other0E66019MI · Medicare Group
Medicaid1786080MI

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOHN R KIRCHER PA
Physician Assistant (Medical)
4175 N EUCLID AVE, SUITE 3
BAY CITY, MI 48706
Bay County (989) 667-0491
JAMES DOROSH DO
Surgery
4175 N EUCLID AVE
BAY CITY, MI 48706
Bay County (989) 891-8112
EUCLID MEDICAL GROUP PC
Family Medicine
4175 N EUCLID AVE, SUITE 3
BAY CITY, MI 48706
Bay County (989) 667-0491
RAVINDRA N. GOYAL M.D.
Neurological Surgery
4175 N EUCLID AVE, SUITE 9
BAY CITY, MI 48706
Bay County (989) 667-3400
LINDSAY LEE HUMBERT RPH
Pharmacist
4175 N EUCLID AVE
BAY CITY, MI 48706
Bay County (989) 667-2940
MR. LAWRENCE KAMMER PA-C
Physician Assistant
4175 N EUCLID AVE, SUITE 3
BAY CITY, MI 48706
Bay County (989) 667-0491
EUCLID MEDIAL GROUP PC
General Practice
4175 N EUCLID AVE
BAY CITY, MI 48706
Bay County (989) 667-0491

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ronald Koehler's NPI number?

The NPI number for Ronald Koehler is 1104857978. It was assigned to this individual provider in the NPPES registry on July 6, 2006.

Where is Ronald Koehler located?

Ronald Koehler practices at 4175 N Euclid Ave Suite 3, Bay City, MI 48706. The listed phone number is (989) 667-0491.

What is Ronald Koehler's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

When was this NPI record last updated?

The NPPES record for Ronald Koehler was last updated on September 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.