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Family Practice

Jennifer D. Heffernan, MD

Works at hospitals in McKinney, TX · Texas

Summary

Dr. Jennifer D. Heffernan, MD is a family doctor at 4001 Worth St, Dallas, TX 75246. Phone: (214) 592-0212. Accepts Medicare assignment. In 2024, Jennifer D. Heffernan had 362 Original Medicare patients and 1,180 services. NPI 1992781256. 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: 4001 Worth St, Dallas, TX 75246 · Directions (1 more location)
  • Phone: (214) 592‑0212
  • Medicare: Accepts Medicare assignment
  • Hospital: Baylor Scott and White Medical Center McKinney
  • Group practice: Legacy Healthcare Services Inc (+1 more)
  • Medical school: University Of Miami, Lm Miller School Of Medicine · graduated 2001 (25 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 Jennifer D. Heffernan, 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 D. Heffernan accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer D. Heffernan 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 D. Heffernan see?
In 2024, CMS data shows 362 Original Medicare patients and 1,180 services for Jennifer D. Heffernan. This counts Original Medicare only and measures volume, not quality.
What is Jennifer D. Heffernan's NPI number?
1992781256. 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 D. Heffernan, 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 patients362
Services billed to Medicare1,180
Different services or procedures30
Participating Medicare providerYes
Average age of these patients86

Most frequent services

  1. Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)364 services
  2. Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)216 services
  3. Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a (G0179)112 services
  4. Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)111 services
  5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)95 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 blood pressure75%
  • High cholesterol75%
  • Alzheimer's disease or dementia68%
  • Arthritis66%
  • Depression55%
  • Chronic kidney disease51%

Hospitals where Jennifer D. Heffernan works

Medicare's Facility Affiliation Data lists Jennifer D. Heffernan 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 Jennifer D. Heffernan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Legacy Healthcare Services Inc3,223 clinicians in the group
  • Healthtexas Provider Network2,697 clinicians in the group

Specialties

Find other Family Practice doctors in Texas →

Other family doctors in Dallas

Clinicians with the same Medicare primary specialty in Dallas, TX — not a recommendation.

All family doctors in Dallas →

Other clinicians in Legacy Healthcare Services Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Miami, Lm Miller School Of Medicine
Graduation year2001 (25 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1992781256
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