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

John Michael Allen, DO

Individual provider Family Medicine Physician · NPI 1215514815

John Michael Allen, DO is an Internal Medicine in Mentor, Ohio. Graduated from Ohio University, College of Osteopathic Medicine in 2021, 5 years ago. Practices with Lake Hospital System, Inc, a 94-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
5
Trained at
Ohio University, College of Osteopathic Medicine
Licensed in
OH
In the registry since
2021
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 →

Practice location Address checks out

9500 Mentor Ave Ste 100
Mentor, OH 44060-8702
Phone: (440) 898-1021
Show map & directions

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

Additional practice locations (1)

  • 27100 Chardon Rd, Richmond Heights, OH 44143-1116 — (440) 585-6500

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 34.017207 (OH)

Record details

NPI number1215514815
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 28, 2021
Last updated in NPPESJuly 10, 2024
Certification dateJuly 10, 2024
Mailing address9500 Mentor Ave Ste 100, Mentor, OH 44060-8702

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOHIO UNIVERSITY, COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2021 (5 years in practice)
Group practice Lake Hospital System, Inc. — 94 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Mentor