Dr. Nikolaus Gravenstein, M.D.
What this data tells you about Dr. Gravenstein
Dr. Nikolaus Gravenstein is an anesthesiology specialist in Tampa, FL, with 12 years of NPI registration. Based on federal Medicare data, Dr. Gravenstein performed 191 Medicare services across 187 unique beneficiaries.
Between the years covered by Open Payments, Dr. Gravenstein received a total of $10,597 from 2 pharmaceutical and/or device companies across 2 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in anesthesiology. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Gravenstein is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Anesthesia for endoscopic procedure on esophagus, stomach, or upper small bowel Administration of anesthesia during an endoscopic procedure involving the esophagus, stomach, or upper small bowel. |
35 | $58 | $1,497 |
| Anesthesia for large bowel endoscopy Administration of anesthesia during a procedure to examine the large bowel using an endoscope. |
31 | $59 | $1,429 |
| Anesthesia for x-ray or radiation therapy Administration of anesthesia during x-ray or radiation therapy procedures. |
26 | $88 | $2,196 |
| Anesthesia for lower abdomen procedure Administration of anesthesia for surgical procedures performed on the lower abdomen. |
16 | $127 | $3,116 |
| Anesthesia for bowel endoscopy Administration of anesthesia during a procedure to examine the small and large bowel using an endoscope. |
15 | $71 | $1,772 |
| Anesthesia for kidney stone removal with endoscope Anesthesia provided during the fragmentation, manipulation, or removal of a kidney stone using an endoscope. |
15 | $84 | $2,092 |
| Brachial plexus injection with anesthetic and/or steroid An injection of an anesthetic agent and/or steroid into the brachial plexus nerve bundle in the arm. |
15 | $55 | $1,618 |
| Anesthesia for urinary system procedure via urethra Administration of anesthesia for a surgical procedure on the urinary system performed through the urethra. |
13 | $66 | $1,636 |
| Anesthesia for total shoulder joint replacement This procedure covers the administration of anesthesia during an open or endoscopic total shoulder joint replacement surgery. |
13 | $155 | $4,292 |
| Anesthesia for upper abdomen procedure Administration of anesthesia for surgical procedures performed on the upper abdomen. |
12 | $122 | $2,959 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
Associated products mentioned in payments ›
The majority of payments (99%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers. Total industry engagement is in the top 3% for anesthesiology in FL.
Geographic Context
1.3 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Gravenstein is a mixed practice specialist, with moderate Medicare volume, with consulting-driven industry engagement in the top 3% of FL peers.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Gravenstein experienced with anesthesia for endoscopic procedure on esophagus, stomach, or upper small bowel?
Does Dr. Gravenstein receive payments from pharmaceutical companies?
How do Dr. Gravenstein's costs compare to other anesthesiologists in Tampa?
What does Data Coverage mean?
Is this data up to date?
Explore related providers
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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