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

Dr. Holly C Hannon, MD

Individual provider Sleep Medicine (Psychiatry & Neurology) Physician · NPI 1801990197

Dr. Holly C Hannon, MD is a Sleep Medicine in Portsmouth, Ohio. Qualified in 1995, 31 years ago. Practices with Somc Medical Care Foundation, Inc, a 382-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
31
Licensed in
OH
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1735 27th St Ste 102
Portsmouth, OH 45662-2679
Phone: (740) 356-8822
Fax: (740) 356-8872
Show map & directions

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

Specialties & licences

Sleep Medicine (Psychiatry & Neurology) Physician (primary) Taxonomy 2084S0012X · Licence 35.130412 (OH)

Record details

NPI number1801990197
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 8, 2006
Last updated in NPPESAugust 18, 2025
Certification dateAugust 18, 2025

Medicare enrollment

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

Medicare specialtySLEEP MEDICINE
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Group practice Somc Medical Care Foundation, Inc. — 382 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare