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

Dr. Gretchen Leigh Nickell, DO

Individual provider Internal Medicine Physician · NPI 1639130552

Dr. Gretchen Leigh Nickell, DO is an Internal Medicine in East Liverpool, Ohio. Qualified in 2000, 26 years ago. Practices with River Valley Physicians LLC, a 55-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
26
Licensed in
OH
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.

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Practice location Address checks out

123 W 6th St
East Liverpool, OH 43920-2921
Phone: (330) 385-7170
Fax: (330) 385-6359
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 15655 State Route 170 Ste H, East Liverpool, OH 43920-9672 — (330) 932-0183
  • 425 W 5th St, East Liverpool, OH 43920-2405 — (330) 386-2926
  • 330 N Market St Ste B, Lisbon, OH 44432-1146 — (330) 870-4595
  • 2229 East Market St, Warren, OH 44483 — (330) 372-0260

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 34007999G (OH)

Record details

NPI number1639130552
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 30, 2006
Last updated in NPPESNovember 16, 2021
Certification dateNovember 16, 2021
Mailing addressPo Box 645409, Pittsburgh, PA 15264-5252

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Group practice River Valley Physicians Llc — 55 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in East Liverpool