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Gastroenterology

Paul D. Allegretti, DO

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

Summary

Dr. Paul D. Allegretti, DO is a gastroenterologist at 2112 Harrisburg Pike, Suite 202, Lancaster, PA 17601. Phone: (717) 869-4600. Accepts Medicare assignment. In 2024, Paul D. Allegretti had 532 Original Medicare patients and 6,840 services. NPI 1033231907. 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 Paul D. Allegretti, 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 Paul D. Allegretti accept Medicare assignment?
Yes. Medicare's clinician data says Paul D. Allegretti 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 Paul D. Allegretti see?
In 2024, CMS data shows 532 Original Medicare patients and 6,840 services for Paul D. Allegretti. This counts Original Medicare only and measures volume, not quality.
What is Paul D. Allegretti's NPI number?
1033231907. 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 Paul D. Allegretti, 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 patients532
Services billed to Medicare6,840
Different services or procedures59
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, vedolizumab, intravenous, 1 mg (J3380)4,500 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)102 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)94 services
  4. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)88 services
  5. Biopsy of large bowel using a flexible endoscope (45380)86 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 pressure72%
  • Arthritis48%
  • Diabetes30%
  • Ischemic heart disease29%
  • Anxiety29%

Hospitals where Paul D. Allegretti works

Medicare's Facility Affiliation Data lists Paul D. Allegretti 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.

Practice locations

Addresses where Paul D. Allegretti is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Paul D. Allegretti as a member of these groups (CMS data updated October 2, 2026).

  • Lancaster General Hospital520 clinicians in the group
  • Regional Gastroenterology Associates of Lancaster, Ltd.244 clinicians in the group

Specialties

Find other Gastroenterology doctors in Pennsylvania →

Other gastroenterologists in Lancaster

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

All gastroenterologists in Lancaster →

Other clinicians in Lancaster General Hospital

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

Clinician information

CredentialDO
Medical schoolPhiladelphia College Of Osteopathic Medicine
Graduation year2000 (26 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1033231907
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