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

Mary Elizabeth Karis, CRNP

Individual provider Nurse Practitioner · NPI 1790448355

Mary Elizabeth Karis, CRNP is a Nurse Practitioner in Hummelstown, Pennsylvania. Qualified in 2021, 5 years ago. Practices with Penn State Health Medical Group LLC, a 711-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania.

Years since qualifying
5
Licensed in
PA
In the registry since
2021
What do these letters mean?
CRNP — Certified Registered Nurse Practitioner
The title Pennsylvania and some other states use for a nurse practitioner.

See every abbreviation used in this directory →

Practice location Address checks out

300 E Main St
Hummelstown, PA 17036-1725
Phone: (717) 566-1100
Fax: (717) 566-0600
Show map & directions

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence SP024534 (PA)

Record details

NPI number1790448355
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNP
Sole proprietorYes
NPI enumeratedOctober 20, 2021
Last updated in NPPESDecember 17, 2024
Certification dateDecember 17, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Penn State Health Medical Group Llc — 711 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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