Ms Mary Elizabeth Karis, CRNP - Medicare Nurse Practitioner in Hummelstown, PA

Ms Mary Elizabeth Karis, CRNP is a medicare enrolled "Nurse Practitioner - Family" in Hummelstown, Pennsylvania. She graduated from nursing school in 2021 and has 3 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice Todd R. Fisher Md, Pc and her current practice location is 300 E Main St, Hummelstown, Pennsylvania. You can reach out to her office (for appointments etc.) via phone at (717) 566-1100.

Ms Mary Elizabeth Karis is licensed to practice in Pennsylvania (license number SP024534) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1790448355.

Contact Information

Ms Mary Elizabeth Karis, CRNP
300 E Main St,
Hummelstown, PA 17036-1725
(717) 566-1100
(717) 566-0600

Map and Direction




Provider's Profile

Full NameMs Mary Elizabeth Karis
GenderFemale
SpecialityNurse Practitioner
Experience3 Years
Location300 E Main St, Hummelstown, Pennsylvania
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Ms Mary Elizabeth Karis graduated from nursing school in 2021
  NPI Data:
  • NPI Number: 1790448355
  • Provider Enumeration Date: 10/20/2021
  • Last Update Date: 10/27/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 2365834603
  • Enrollment ID: I20220119002110

Medical Identifiers

Medical identifiers for Ms Mary Elizabeth Karis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1790448355NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LF0000XNurse Practitioner - Family SP024534 (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Pinnacle Health HospitalsHarrisburg, PAHospital
Milton S Hershey Medical CenterHershey, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Todd R. Fisher Md, Pc21634660874

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Ms Mary Elizabeth Karis allows following entities to bill medicare on her behalf.
Entity NameTodd R. Fisher Md, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1295792083
PECOS PAC ID: 2163466087
Enrollment ID: O20050613000358

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Ms Mary Elizabeth Karis is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Ms Mary Elizabeth Karis, CRNP
300 E Main St,
Hummelstown, PA 17036-1725

Ph: (717) 566-1100
Ms Mary Elizabeth Karis, CRNP
300 E Main St,
Hummelstown, PA 17036-1725

Ph: (717) 566-1100

Reviews and Comments


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Shanda M Powell, FNB-BC
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Phone: 717-351-7010    Fax: 717-531-7102
Jill K Buchle, CRNP
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Phone: 800-243-1455    
Jill Kathleen Kepner, CRNP
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Medicare: Not Enrolled in Medicare
Practice Location: 8130 Adams Dr, Hummelstown, PA 17036
Phone: 717-967-8288    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.