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

Diana Marie Kellar, MSN

Individual provider Family Nurse Practitioner · NPI 1801238084

Diana Marie Kellar, MSN is a Nurse Practitioner in Vienna, Ohio. Qualified in 2013, 13 years ago. Practices with Mercy Health Physicians Youngstown, LLC, a 117-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Ohio.

Years since qualifying
13
Licensed in
OH
In the registry since
2013
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.

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Practice location Address checks out

341 Youngstown Kingsville Rd SE
Vienna, OH 44473-9601
Phone: (330) 394-2305
Fax: (330) 394-1405
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence COA14840NP (OH)

Record details

NPI number1801238084
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN
Sole proprietorNo
NPI enumeratedJuly 29, 2013
Last updated in NPPESOctober 14, 2015

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Mercy Health Physicians Youngstown, Llc — 117 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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