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Anesthesiology

Timothy L. Gruebel, MD

Works at hospitals in Raleigh, NC · North Carolina

Summary

Dr. Timothy L. Gruebel, MD is an anesthesiologist at 1900 Kildaire Farm Rd, Cary, NC 27518. Phone: (919) 350-3200. Accepts Medicare assignment. In 2024, Timothy L. Gruebel had 272 Original Medicare patients and 413 services. NPI 1417131376. 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: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 1900 Kildaire Farm Rd, Cary, NC 27518 · Directions (1 more location)
  • Phone: (919) 350‑3200
  • Medicare: Accepts Medicare assignment
  • Hospital: Rex Hospital
  • Group practice: American Anesthesiology of North Carolina PLLC
  • Medical school: Wake Forest University School Of Medicine · graduated 2005 (21 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Timothy L. Gruebel, 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 Timothy L. Gruebel accept Medicare assignment?
Yes. Medicare's clinician data says Timothy L. Gruebel 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 Timothy L. Gruebel see?
In 2024, CMS data shows 272 Original Medicare patients and 413 services for Timothy L. Gruebel. This counts Original Medicare only and measures volume, not quality.
What is Timothy L. Gruebel's NPI number?
1417131376. 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 Timothy L. Gruebel, 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 patients272
Services billed to Medicare413
Different services or procedures75
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Insertion of artery tube for blood sampling or infusion through skin (36620)46 services
  2. Anesthesia for lens surgery (00142)20 services
  3. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)19 services
  4. Ultrasound of heart with probe in esophagus, with report (93312)15 services
  5. Anesthesia for other procedure on urinary system through urethra (00910)14 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%
  • Arthritis65%
  • Ischemic heart disease43%
  • Chronic kidney disease38%
  • Diabetes36%

Hospitals where Timothy L. Gruebel works

Medicare's Facility Affiliation Data lists Timothy L. Gruebel 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.

  • Rex HospitalRaleigh, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340114

Practice locations

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

Group practices

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

  • American Anesthesiology of North Carolina PLLC317 clinicians in the group

Specialties

Find other Anesthesiology doctors in North Carolina →

Other anesthesiologists in Cary

Clinicians with the same Medicare primary specialty in Cary, NC — not a recommendation.

All anesthesiologists in Cary →

Other clinicians in American Anesthesiology of North Carolina PLLC

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

Clinician information

CredentialMD
Medical schoolWake Forest University School Of Medicine
Graduation year2005 (21 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1417131376
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