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

Individual provider Internal Medicine Physician · NPI 1831332303

Marissa Elan Chesney, MD practises Internal Medicine in Red Lion, Pennsylvania. Qualified in 2009, 17 years ago. Practices with Wellspan Medical Group, a 2,342-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Louisiana and Pennsylvania.

Years since qualifying
17
Licensed in
LA, PA
In the registry since
2009
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3065 Windsor Rd
Red Lion, PA 17356-8533
Phone: (717) 851-1700
Fax: (717) 715-1302
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD463699 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 206426 (LA)

Record details

NPI number1831332303
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 14, 2009
Last updated in NPPESJune 7, 2022
Certification dateJune 7, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Wellspan Medical Group — 2342 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients534
Services billed 1,967 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Wellspan Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2342 clinicians in the practice; 12 are shown here.

Other providers in Red Lion