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Cardiovascular Disease (Cardiology)

Douglas C. Westveer, MD

Works at hospitals in Greer, SC · Spartanburg, SC · South Carolina

Summary

Dr. Douglas C. Westveer, MD is a cardiologist at 1690 Skylyn Dr, Suite 230, Spartanburg, SC 29307. Phone: (864) 583-8647. Accepts Medicare assignment. In 2024, Douglas C. Westveer had 521 Original Medicare patients and 890 services. NPI 1245281674. 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: Cardiologist (Medicare lists Cardiovascular Disease (Cardiology))
  • Address: 1690 Skylyn Dr, Suite 230, Spartanburg, SC 29307 · Directions
  • Phone: (864) 583‑8647
  • Medicare: Accepts Medicare assignment
  • Hospitals: Pelham Medical Center, Spartanburg Medical Center
  • Group practice: Spartanburg Medical Center
  • Medical school: Michigan State University College Of Human Medicine · graduated 1975 (51 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Douglas C. Westveer, 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 Douglas C. Westveer accept Medicare assignment?
Yes. Medicare's clinician data says Douglas C. Westveer 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 Douglas C. Westveer see?
In 2024, CMS data shows 521 Original Medicare patients and 890 services for Douglas C. Westveer. This counts Original Medicare only and measures volume, not quality.
What is Douglas C. Westveer's NPI number?
1245281674. 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 Douglas C. Westveer, 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 patients521
Services billed to Medicare890
Different services or procedures25
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)556 services
  2. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)113 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)45 services
  4. Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician (93016)23 services
  5. Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)23 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%
  • Arthritis54%
  • Ischemic heart disease40%
  • Diabetes37%
  • Anxiety35%

Hospitals where Douglas C. Westveer works

Medicare's Facility Affiliation Data lists Douglas C. Westveer 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 Douglas C. Westveer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Douglas C. Westveer as a member of this group (CMS data updated October 2, 2026).

  • Spartanburg Medical Center1,078 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in South Carolina →

Other cardiologists in Spartanburg

Clinicians with the same Medicare primary specialty in Spartanburg, SC — not a recommendation.

All cardiologists in Spartanburg →

Other clinicians in Spartanburg Medical Center

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

Clinician information

CredentialMD
Medical schoolMichigan State University College Of Human Medicine
Graduation year1975 (51 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1245281674
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