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General Surgery

Jennifer L. Denne, MD

Works at hospitals in Bryn Mawr, PA · Wynnewood, PA · Paoli, PA … · Pennsylvania

Summary

Dr. Jennifer L. Denne, MD is a general surgeon at 130 S Bryn Mawr Ave, Bryn Mawr, PA 19010. Phone: (484) 337-4097. Accepts Medicare assignment. In 2024, Jennifer L. Denne had 341 Original Medicare patients and 589 services. NPI 1447318126. 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.

  • Specialty: General surgeon (Medicare lists General Surgery)
  • Address: 130 S Bryn Mawr Ave, Bryn Mawr, PA 19010 · Directions (4 more locations)
  • Phone: (484) 337‑4097
  • Medicare: Accepts Medicare assignment
  • Hospitals: Bryn Mawr Hospital, Main Line Hospital Lankenau, Paoli Hospital and 1 more
  • Group practice: Main Line Healthcare
  • Medical school: Hahnemann University College Of Medicine · graduated 2001 (25 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Jennifer L. Denne, 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 Jennifer L. Denne accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer L. Denne 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 Jennifer L. Denne see?
In 2024, CMS data shows 341 Original Medicare patients and 589 services for Jennifer L. Denne. This counts Original Medicare only and measures volume, not quality.
What is Jennifer L. Denne's NPI number?
1447318126. 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 Jennifer L. Denne, 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 patients341
Services billed to Medicare589
Different services or procedures67
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)141 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)51 services
  3. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)48 services
  4. Repair of groin hernia using an endoscope (49650)47 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)43 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%
  • Arthritis48%
  • Ischemic heart disease37%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)26%
  • Anxiety24%

Hospitals where Jennifer L. Denne works

Medicare's Facility Affiliation Data lists Jennifer L. Denne 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.

  • Bryn Mawr HospitalBryn Mawr, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390139
  • Main Line Hospital LankenauWynnewood, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390195
  • Paoli HospitalPaoli, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390153
  • Riddle Memorial HospitalMedia, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390222

Practice locations

Addresses where Jennifer L. Denne is enrolled with Medicare (CMS data updated October 2, 2026).

  • 130 S Bryn Mawr AveBryn Mawr, PA 19010
  • 130 S Bryn Mawr Ave H, 321 Gvh Hospital Medical Services BrynBryn Mawr, PA 19010 (484) 337‑4097
  • 154 Exton Square MallExton, PA 19341
  • 154 Exton Square Mall, Family Medicine at Exton SquareExton, PA 19341 (484) 565‑8500
  • 830 Old Lancaster RdBryn Mawr, PA 19010

Group practices

Medicare enrollment lists Jennifer L. Denne as a member of this group (CMS data updated October 2, 2026).

  • Main Line Healthcare1,184 clinicians in the group

Specialties

Find other General Surgery doctors in Pennsylvania →

Other general surgeons in Bryn Mawr

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

All general surgeons in Bryn Mawr →

Other clinicians in Main Line Healthcare

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

Clinician information

CredentialMD
Medical schoolHahnemann University College Of Medicine
Graduation year2001 (25 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1447318126
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