Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Gerard J Mahoney, DO

Individual provider Family Medicine Physician · NPI 1659385219

Gerard J Mahoney, DO is a Family Practice in Frankfort, Michigan. Graduated from Michigan State University College of Osteopathic Medicine in 1992, 34 years ago. Practices with Crystal Lake Clinic PC, a 13-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
34
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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

826 Forest Ave
Frankfort, MI 49635
Phone: (231) 352-5285
Fax: (231) 352-6384
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

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 5101012168 (MI)

Record details

NPI number1659385219
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 28, 2006
Last updated in NPPESOctober 11, 2007
Mailing address6227 Frankfort Hwy, Benzonia, MI 49616-9654

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 1992 (34 years in practice)
Group practice Crystal Lake Clinic Pc — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

Other providers in Frankfort