Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

Jessica L. Deffler, MD

Works at hospitals in Philadelphia, PA · Pennsylvania

Summary

Dr. Jessica L. Deffler, MD is a family doctor at 833 Chestnut St, East 3rd Flr Suite 301, Philadelphia, PA 19107. Phone: (215) 955-7190. Accepts Medicare assignment. In 2024, Jessica L. Deffler had 16 Original Medicare patients and 71 services. NPI 1063945400. 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: Family doctor (Medicare lists Family Practice)
  • Address: 833 Chestnut St, East 3rd Flr Suite 301, Philadelphia, PA 19107 · Directions
  • Phone: (215) 955‑7190
  • Medicare: Accepts Medicare assignment
  • Hospital: Thomas Jefferson University Hospital
  • Group practice: Jefferson University Physicians
  • Medical school: Wake Forest University School Of Medicine · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Jessica L. Deffler, 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 Jessica L. Deffler accept Medicare assignment?
Yes. Medicare's clinician data says Jessica L. Deffler 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 Jessica L. Deffler see?
In 2024, CMS data shows 16 Original Medicare patients and 71 services for Jessica L. Deffler. This counts Original Medicare only and measures volume, not quality.
What is Jessica L. Deffler's NPI number?
1063945400. 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 Jessica L. Deffler, 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 patients16
Services billed to Medicare71
Different services or procedures15
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)31 services

Hospitals where Jessica L. Deffler works

Medicare's Facility Affiliation Data lists Jessica L. Deffler 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 Jessica L. Deffler is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Jefferson University Physicians1,531 clinicians in the group

Specialties

Find other Family Practice doctors in Pennsylvania →

Other family doctors in Philadelphia

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

All family doctors in Philadelphia →

Other clinicians in Jefferson University Physicians

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

Clinician information

CredentialMD
Medical schoolWake Forest University School Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1063945400
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