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Radiation Oncology

Kenneth G. Berkenstock, MD

Works at hospitals in Lancaster, PA · Hershey, PA · Lititz, PA · Pennsylvania

Summary

Dr. Kenneth G. Berkenstock, MD is a radiation oncologist at 2100 Harrisburg Pike, Lancaster, PA 17601. Phone: (717) 544-3113. Accepts Medicare assignment. In 2024, Kenneth G. Berkenstock had 178 Original Medicare patients and 1,271 services. NPI 1821076571. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Kenneth G. Berkenstock, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Kenneth G. Berkenstock accept Medicare assignment?
Yes. Medicare's clinician data says Kenneth G. Berkenstock accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Kenneth G. Berkenstock see?
In 2024, CMS data shows 178 Original Medicare patients and 1,271 services for Kenneth G. Berkenstock. This counts Original Medicare only and measures volume, not quality.
What is Kenneth G. Berkenstock's NPI number?
1821076571. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Kenneth G. Berkenstock, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients178
Services billed to Medicare1,271
Different services or procedures28
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Ct guidance for insertion of radiation therapy fields (77014)411 services
  2. Calculation of radiation therapy dose (77300)168 services
  3. Radiation treatment management, 5 treatment sessions (77427)128 services
  4. Design and construction of complex radiation treatment device (77334)106 services
  5. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)65 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • High blood pressure71%
  • Arthritis36%
  • Diabetes30%
  • Anxiety26%

Hospitals where Kenneth G. Berkenstock works

Medicare's Facility Affiliation Data lists Kenneth G. Berkenstock at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Lancaster General HospitalLancaster, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390100
  • Milton S Hershey Medical CenterHershey, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390256
  • UPMC LititzLititz, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390068

Practice locations

Addresses where Kenneth G. Berkenstock is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Kenneth G. Berkenstock as a member of this group (CMS data updated October 2, 2026).

  • Lancaster General Hospital520 clinicians in the group

Specialties

Find other Radiation Oncology doctors in Pennsylvania →

Other radiation oncologists in Lancaster

Clinicians with the same Medicare primary specialty in Lancaster, PA — not a recommendation.

All radiation oncologists in Lancaster →

Other clinicians in Lancaster General Hospital

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolHahnemann University College Of Medicine
Graduation year1989 (37 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1821076571
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians