Dr. Christopher P. Kellner, M.D.
Neurosurgery (Neurological Surgery Physician)
- Medicare participating
At a glance
- Medical school
- University of Missouri, Columbia School of Medicine (2008)
- Years since graduation
- 18
- In the NPI registry since
- 2008
- Medicare patients seen, 2024
- 160
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2008Medical school: University of Missouri, Columbia School of Medicine
- 2008Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Neurological Surgery Physician primary
NY license 281906 -
Neuroradiology Physician
NY license 281906
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Mount Sinai Hospital New York, NY
- Mount Sinai West New York, NY
Medical groups
- Icahn School of Medicine at Mount Sinai (2,843 clinicians)
- Icahn School of Medicine at Mount Sinai (316 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 160
- Services billed
- 539
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 65 | 47 |
| Established patient office or other outpatient visit, 20-29 minutes | 29 | 25 |
| Imaging of blood vessel | 21 | 12 |
| Occlusion of central nervous system or spinal cord artery | 19 | 13 |
| Review by radiologist of image for insertion of material to block blood flow | 17 | 12 |
| Ct scan head or brain without contrast | 16 | 12 |
| New patient office or other outpatient visit, 30-44 minutes | 15 | 15 |
| Established patient office or other outpatient visit, 40-54 minutes | 14 | 13 |
| Ultrasonic guidance for blood vessel access | 14 | 14 |
| Insertion of tube into external neck artery for diagnosis or treatment with review by radiologist | 14 | 14 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 16 companies reported 94 payments worth $56,137 in total to this clinician.
| Medical Device Business Services, Inc. | $46,823 |
|---|---|
| Route 92 Medical, Inc. | $5,658 |
| Imperative Care, Inc | $654 |
| Irras USA, Inc. | $633 |
| Microvention, Inc. | $421 |
| Integra Lifesciences Corporation | $403 |
| Balt USA, LLC | $360 |
| Penumbra, Inc. | $297 |
| Consulting Fee | $28,899 |
|---|---|
| Travel and Lodging | $21,486 |
| Food and Beverage | $5,752 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Medical Device Business Services, Inc. Apr 10, 2025 | Travel and Lodging travel to Galway, Ireland · in-kind | $9,461 |
| Medical Device Business Services, Inc. Jun 23, 2025 | Consulting Fee EMBOGUARD · Neurovascular | $8,101 |
| Medical Device Business Services, Inc. Sep 11, 2025 | Consulting Fee Spotlight · Sterilization | $5,998 |
| Medical Device Business Services, Inc. Jun 23, 2025 | Travel and Lodging EMBOGUARD · Neurovascular · travel to NEW YORK, NY | $4,799 |
| Route 92 Medical, Inc. May 9, 2025 | Consulting Fee | $4,000 |
| Medical Device Business Services, Inc. Nov 14, 2025 | Consulting Fee Spotlight · Sterilization | $3,900 |
| Medical Device Business Services, Inc. Sep 11, 2025 | Travel and Lodging Spotlight · Sterilization · travel to NEW YORK, NY | $2,402 |
| Medical Device Business Services, Inc. Dec 26, 2025 | Consulting Fee Spotlight · Sterilization | $2,400 |
| Medical Device Business Services, Inc. Nov 14, 2025 | Travel and Lodging Spotlight · Sterilization · travel to NEW YORK, NY | $1,800 |
| Medical Device Business Services, Inc. May 19, 2025 | Consulting Fee EMBOGUARD · Neurovascular | $1,800 |
All 30 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Medical Device Business Services, Inc. Dec 26, 2025 | Consulting Fee Spotlight · Sterilization | $2,400 |
| Medical Device Business Services, Inc. Nov 18, 2025 | Consulting Fee TRUFILL · Neurovascular | $300 |
| Medical Device Business Services, Inc. Nov 14, 2025 | Consulting Fee Spotlight · Sterilization | $3,900 |
| Medical Device Business Services, Inc. Nov 14, 2025 | Travel and Lodging Spotlight · Sterilization · travel to NEW YORK, NY | $1,800 |
| Medical Device Business Services, Inc. Oct 15, 2025 | Consulting Fee TRUFILL · Neurovascular | $900 |
| Medical Device Business Services, Inc. Oct 7, 2025 | Travel and Lodging travel to CINCINNATI, OH · in-kind | $767 |
| Medical Device Business Services, Inc. Oct 7, 2025 | Travel and Lodging travel to CINCINNATI, OH · in-kind | $148 |
| Medical Device Business Services, Inc. Oct 6, 2025 | Travel and Lodging travel to CINCINNATI, OH · in-kind | $208 |
| Medical Device Business Services, Inc. Oct 6, 2025 | Travel and Lodging travel to CINCINNATI, OH · in-kind | $153 |
| Medical Device Business Services, Inc. Sep 11, 2025 | Consulting Fee Spotlight · Sterilization | $5,998 |
| Medical Device Business Services, Inc. Sep 11, 2025 | Travel and Lodging Spotlight · Sterilization · travel to NEW YORK, NY | $2,402 |
| Medical Device Business Services, Inc. Aug 29, 2025 | Consulting Fee TRUFILL · Neurovascular | $1,200 |
| Medical Device Business Services, Inc. Jul 10, 2025 | Travel and Lodging TRUFILL · Neurovascular · travel to Chicago, IL · in-kind | $379 |
| Medical Device Business Services, Inc. Jun 23, 2025 | Consulting Fee EMBOGUARD · Neurovascular | $8,101 |
| Medical Device Business Services, Inc. Jun 23, 2025 | Travel and Lodging EMBOGUARD · Neurovascular · travel to NEW YORK, NY | $4,799 |
| Medical Device Business Services, Inc. May 19, 2025 | Consulting Fee EMBOGUARD · Neurovascular | $1,800 |
| Route 92 Medical, Inc. May 9, 2025 | Consulting Fee | $4,000 |
| Route 92 Medical, Inc. May 8, 2025 | Travel and Lodging travel to NEW YORK, NY | $358 |
| Medical Device Business Services, Inc. May 6, 2025 | Travel and Lodging travel to Galway, Ireland · in-kind | $70.32 |
| Medical Device Business Services, Inc. May 6, 2025 | Travel and Lodging travel to Galway, Ireland · in-kind | $70.32 |
| Medical Device Business Services, Inc. May 6, 2025 | Travel and Lodging travel to Galway, Ireland · in-kind | $70.32 |
| Medical Device Business Services, Inc. May 6, 2025 | Travel and Lodging travel to Galway, Ireland · in-kind | $70.32 |
| Medical Device Business Services, Inc. May 6, 2025 | Travel and Lodging travel to Galway, Ireland · in-kind | $70.32 |
| Medical Device Business Services, Inc. May 6, 2025 | Travel and Lodging travel to Galway, Ireland · in-kind | $70.32 |
| Medical Device Business Services, Inc. May 6, 2025 | Travel and Lodging travel to Galway, Ireland · in-kind | $70.32 |
| Medical Device Business Services, Inc. May 6, 2025 | Travel and Lodging travel to Galway, Ireland · in-kind | $70.32 |
| Medical Device Business Services, Inc. May 6, 2025 | Travel and Lodging travel to Galway, Ireland · in-kind | $70.32 |
| Route 92 Medical, Inc. Apr 30, 2025 | Travel and Lodging travel to NEW TORK, NY | $379 |
| Medical Device Business Services, Inc. Apr 10, 2025 | Travel and Lodging travel to Galway, Ireland · in-kind | $9,461 |
| Medical Device Business Services, Inc. Mar 31, 2025 | Consulting Fee EMBOGUARD · Neurovascular | $300 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 8 industry-funded studies in 2025, from 6 companies. The companies reported $935,091 in research payments for these studies, mostly to the institutions running them.
- Clearance of Intracranial Blood Products by Continuous Irrigation With the IRRAflow System
Irras USA, Inc. · Recruiting · NCT06649097 - Active Removal of IntraCerebral Hematoma Via Active Irrigation
Irras USA, Inc. · Status unknown · NCT05118997 - Feasibility Study to Evaluate the Initial Safety and Effectiveness of TRUFILL n-BCA Liquid Embolic System in Middle Meningeal Artery Embolization for the Preventive Treatment of Refractory Chronic Migraine
Medical Device Business Services, Inc. - MIND
Penumbra, Inc. - MtSinai Kellner AT Neuro Clinical
Siemens Medical Solutions USA, Inc. - Transcranial Ultrasound Via Sonolucent Cranioplasty After Minimally Invasive Intracerebral Hemorrhage Evacuation (TUSC MIS)
Longeviti Neuro Solutions Inc - A Prospective, Multicenter Study to Evaluate the Performance and Safety of the CerebroFlo EVD Catheter
Integra Lifesciences Corporation - Study name not reported
Siemens Medical Solutions USA, Inc.
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.