GEISINGER CLINIC
Medicare Clinicians for NPI 1770534166
Internal Medicine in Lewistown, PA
Clinicians Billing Medicare Through This Organization CMS
Clinicians who reassign their Medicare billing to this organization, per CMS enrollment records.
Geisinger Clinic in Lewistown, PA bills Medicare for 4,415 clinicians across 72 Medicare specialties. The largest specialties are Nurse Practitioner with 566, Certified Registered Nurse Anesthetist (CRNA) with 411 and Internal Medicine with 361. Of these, 30 practice at this address and 167 within 10 miles. Search by name or filter by specialty; each name links to that clinician's NPI profile.
This page lists the 250 clinicians practicing nearest to this organization's location. All 4,415 are counted in the totals above.
Nurse Practitioner (28 of 566)
Certified Registered Nurse Anesthetist (CRNA) (22 of 411)
Family Practice (21 of 245)
Anesthesiology (16 of 184)
Hospitalist (16 of 213)
Internal Medicine (16 of 361)
Emergency Medicine (15 of 276)
Pediatric Medicine (11 of 218)
Obstetrics/Gynecology (9 of 129)
Cardiovascular Disease (Cardiology) (8 of 77)
Lewistown, PA 17044
Orthopedic Surgery (8 of 77)
Radiation Oncology (7 of 30)
Diagnostic Radiology (6 of 272)
Lewistown, PA 17044
Gastroenterology (6 of 76)
General Surgery (6 of 124)
Certified Nurse Midwife (CNM) (5 of 35)
Clinical Psychologist (4 of 44)
Dermatology (4 of 49)
Nephrology (4 of 24)
Neurology (4 of 97)
Podiatry (3 of 23)
Registered Dietitian or Nutrition Professional (3 of 43)
Clinical Social Worker (2 of 42)
Hematology/Oncology (2 of 36)
Medical Oncology (2 of 22)
Otolaryngology (2 of 37)
Psychiatry (2 of 80)
Sleep Medicine (2 of 6)
Sports Medicine (2 of 11)
Urology (2 of 34)
Allergy/Immunology (1 of 11)
Critical Care (Intensivists) (1 of 48)
Interventional Pain Management (1 of 6)
Mental Health Counselor (1 of 19)
Micrographic Dermatologic Surgery (MDS) (1 of 3)
Ophthalmology (1 of 39)
Optometry (1 of 22)
Pain Management (1 of 2)
Pulmonary Disease (1 of 31)
Qualified Audiologist (1 of 18)
Rheumatology (1 of 20)
Thoracic Surgery (1 of 21)
About this data
Medicare reassignment. A clinician who works for a hospital, clinic or medical group usually signs a Medicare reassignment (form CMS-855R). It lets the organization bill Medicare for the clinician's services and receive the payment. This page lists the clinicians whose reassignment to Geisinger Clinic appears in the CMS Revalidation Reassignment List.
Who is included. Clinicians who bill Medicare under their own NPI through this organization. A clinician can reassign to more than one organization, so the same name may also appear under other groups.
Nearest 250. The totals and specialty counts cover all 4,415 clinicians. The list shows the 250 whose practice address is closest to this NPI's location, so each Geisinger Clinic location shows its own nearest clinicians.
Addresses and phone numbers come from each clinician's own NPPES record, so they may point to another office or to the clinician's own practice.
Source: CMS Revalidation Reassignment List, October 2026 release; addresses, phone numbers and Medicare status from NPPES and PECOS. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
