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

Deron John Hammack, DO

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1194963769

Deron John Hammack, DO is a Family Practice in Lavalette, West Virginia. Graduated from West Virginia School of Osteopathic Medicine in 2007, 19 years ago. Practices with Holzer Clinic LLC, a 264-clinician group and accepts Medicare assignment. Licensed in Kentucky and West Virginia.

Years since qualifying
19
Trained at
West Virginia School of Osteopathic Medicine
Licensed in
KY, WV
In the registry since
2009
Specialties on file
4
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

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Lavalette, WV

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 2487 (WV)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Emergency Medicine Physician Taxonomy 207P00000X · Licence 2487 (WV)
Family Medicine Physician Taxonomy 207Q00000X · Licence TP322 (KY)

Record details

NPI number1194963769
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedFebruary 4, 2009
Last updated in NPPESAugust 13, 2010

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolWEST VIRGINIA SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 2007 (19 years in practice)
Group practice Holzer Clinic Llc — 264 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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