Quick answers
- Does David L. Kerstetter Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says David L. Kerstetter Jr. 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 David L. Kerstetter Jr. see?
- In 2024, CMS data shows 403 Original Medicare patients and 5,369 services for David L. Kerstetter Jr.. This counts Original Medicare only and measures volume, not quality.
- What is David L. Kerstetter Jr.'s NPI number?
- 1619994076. 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 David L. Kerstetter Jr., 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 patients | 403 |
|---|---|
| Services billed to Medicare | 5,369 |
| Different services or procedures | 56 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)142 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)112 services
- Biopsy of large bowel using a flexible endoscope (45380)84 services
- Insertion of guide wire with dilation of esophagus using a flexible endoscope (43248)36 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)35 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%
- High blood pressure74%
- Arthritis52%
- Anxiety33%
- Ischemic heart disease31%
- Diabetes29%
Hospitals where David L. Kerstetter Jr. works
Medicare's Facility Affiliation Data lists David L. Kerstetter Jr. 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.
- Conemaugh Nason Medical CenterRoaring Spring, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390062
- Penn Highlands HuntingdonHuntingdon, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390056
- UPMC AltoonaAltoona, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390073
- UPMC Bedford MemorialEverett, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390117
Practice locations
Addresses where David L. Kerstetter Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 2112 Harrisburg Pike, Suite 202Lancaster, PA 17601 (717) 869‑4600
Group practices
Medicare enrollment lists David L. Kerstetter Jr. as a member of this group (CMS data updated October 2, 2026).
- Regional Gastroenterology Associates of Lancaster, Ltd.244 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Lancaster
Clinicians with the same Medicare primary specialty in Lancaster, PA — not a recommendation.
Other clinicians in Regional Gastroenterology Associates of Lancaster, Ltd.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1619994076 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians