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Cardiovascular Disease (Cardiology)

Jeffrey R. Parker, MD

Works at hospitals in Austin, TX · Round Rock, TX · Texas

Summary

Dr. Jeffrey R. Parker, MD is a cardiologist at 4316 James Casey St, Austin, TX 78745. Phone: (512) 623-5300. Accepts Medicare assignment. In 2024, Jeffrey R. Parker had 921 Original Medicare patients and 3,234 services. NPI 1629205364. 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 Jeffrey R. Parker, 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 Jeffrey R. Parker accept Medicare assignment?
Yes. Medicare's clinician data says Jeffrey R. Parker 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 Jeffrey R. Parker see?
In 2024, CMS data shows 921 Original Medicare patients and 3,234 services for Jeffrey R. Parker. This counts Original Medicare only and measures volume, not quality.
What is Jeffrey R. Parker's NPI number?
1629205364. 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 Jeffrey R. Parker, 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 patients921
Services billed to Medicare3,234
Different services or procedures52
Participating Medicare providerYes
Average age of these patients77

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)655 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)457 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)363 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)312 services
  5. Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician (93016)251 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%
  • Ischemic heart disease62%
  • Arthritis46%
  • Atrial fibrillation41%
  • Diabetes38%

Hospitals where Jeffrey R. Parker works

Medicare's Facility Affiliation Data lists Jeffrey R. Parker 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 Jeffrey R. Parker is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jeffrey R. Parker as a member of this group (CMS data updated October 2, 2026).

  • St Davids Heart and Vascular PLLC203 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Texas →

Other cardiologists in Austin

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

All cardiologists in Austin →

Other clinicians in St Davids Heart and Vascular PLLC

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

Clinician information

CredentialMD
Graduation year2009 (17 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1629205364
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