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Anesthesiology

Nikolaus L. Gravenstein, MD

Works at hospitals in Saint Petersburg, FL · Florida

Summary

Dr. Nikolaus L. Gravenstein, MD is an anesthesiologist at 6500 38th Ave N, St Petersburg, FL 33710. Phone: (727) 384-1414. Accepts Medicare assignment. In 2024, Nikolaus L. Gravenstein had 40 Original Medicare patients and 40 services. NPI 1760800569. 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: 6500 38th Ave N, St Petersburg, FL 33710 · Directions
  • Phone: (727) 384‑1414
  • Medicare: Accepts Medicare assignment
  • Hospital: HCA Florida St Petersburg Hospital
  • Group practice: Sunshine State Anesthesia Partners LLC
  • Medical school: University Of Florida College Of Medicine · graduated 2014 (12 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Nikolaus L. Gravenstein, 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 Nikolaus L. Gravenstein accept Medicare assignment?
Yes. Medicare's clinician data says Nikolaus L. Gravenstein 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 Nikolaus L. Gravenstein see?
In 2024, CMS data shows 40 Original Medicare patients and 40 services for Nikolaus L. Gravenstein. This counts Original Medicare only and measures volume, not quality.
What is Nikolaus L. Gravenstein's NPI number?
1760800569. 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 Nikolaus L. Gravenstein, 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 patients40
Services billed to Medicare40
Different services or procedures19
Participating Medicare providerYes
Average age of these patients72

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%
  • Arthritis50%
  • Chronic kidney disease45%
  • Diabetes43%
  • Depression40%

Hospitals where Nikolaus L. Gravenstein works

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

Group practices

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

  • Sunshine State Anesthesia Partners LLC425 clinicians in the group

Specialties

Find other Anesthesiology doctors in Florida →

Other anesthesiologists in St Petersburg

Clinicians with the same Medicare primary specialty in St Petersburg, FL — not a recommendation.

All anesthesiologists in St Petersburg →

Other clinicians in Sunshine State Anesthesia Partners LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Florida College Of Medicine
Graduation year2014 (12 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1760800569
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