Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mark A Gallagher, D.O.
Surgery Physician in Tawas City, MI · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164416954
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Registry record
Entity type Individual (Type 1)
Name Dr. Mark A Gallagher
Credential D.O.
Sex Male
Practice address 295 Maple St, Suite 200, Tawas City, MI, 48763
Phone (989) 984-3788
Enumeration date Sep 7, 2005
Last updated in NPPES May 23, 2013
Taxonomy & licenses
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Mark Gallagher?
The National Provider Identifier (NPI) for Mark Gallagher is 1164416954, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Gallagher practice?
The practice location on file with NPPES is in Tawas City, MI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Mymichigan Medical Center Tawas Rural Health Clinic/Center · Tawas City, MI NPI 1164410841 Family Foot and Ankle Center, P.C. Foot & Ankle Surgery Podiatrist · Tawas City, MI NPI 1194871202 Steven Dowdy Internal Medicine Physician · Tawas City, MI NPI 1457579898 Sarah Woods Family Nurse Practitioner · Tawas City, MI NPI 1265788749 Erin Osborn Adult Health Nurse Practitioner · Tawas City, MI NPI 1316379084 Orthopedic Solutions of Northern Michigan Orthopaedic Surgery Physician · Tawas City, MI NPI 1205243813
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-23.