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

Dr. Marshall C Long, DO

Individual provider Family Medicine Physician · NPI 1487718672

Dr. Marshall C Long, DO is a Family Practice in Princeton, West Virginia. Graduated from West Virginia School of Osteopathic Medicine in 1983, 43 years ago. Practices with Princeton Community Hospital Assn Inc, a 175-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in West Virginia.

Years since qualifying
43
Trained at
West Virginia School of Osteopathic Medicine
Licensed in
WV
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 →

Practice location Address checks out

118 12th Street Ext
Princeton, WV 24740
Phone: (304) 487-7936
Fax: (304) 487-7835
Show map & directions

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

Additional practice locations (2)

  • 401 E Vermillion St, Athens, WV 24712-8005 — (304) 384-7325
  • 200 New Hope Rd, Princeton, WV 24740 — (304) 487-5854

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence WV913 (WV)

Record details

NPI number1487718672
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedDecember 21, 2006
Last updated in NPPESSeptember 24, 2018
Mailing address118 12th Street Ext, Princeton, WV 24740-2352

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 1983 (43 years in practice)
Group practice Princeton Community Hospital Assn. Inc. — 175 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Princeton