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Dr. Jonathan Grossberg

Neurosurgery (Neurological Surgery Physician)

  • Medicare participating

At a glance

Years since graduation
20
In the NPI registry since
2007
Medicare patients seen, 2024
112

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

  • 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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
    GA license 069603 · RI license LP00899

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Neurosurgery per capita by county →

Where they work

Hospitals

Medical groups

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
112
Services billed
199
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes4437
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes1615

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, 6 companies reported 10 payments worth $1,669 in total to this clinician.

By company
Imperative Care, Inc$822
Stryker Corporation$574
DePuy Synthes Sales Inc.$150
Microvention, Inc.$58.40
Inspiremd LTD$41.07
Route 92 Medical, Inc.$24.61
By type
Consulting Fee$1,075
Food and Beverage$594

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Jul 31, 2025Stryker Corporation
Jul 31, 2025
Consulting Fee
TREVO · MICROCATHETERSTENTRIEVER
$550
Jan 3, 2025Imperative Care, Inc
Jan 3, 2025
Consulting Fee
ZOOM 88-T LARGE DISTAL PLATFORM · VASCULAR
$525

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.

Who received the most in Georgia →

Industry-funded research

Named as a principal investigator on 4 industry-funded studies in 2025, from 3 companies. The companies reported $41,884 in research payments for these studies, mostly to the institutions running them.

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.

Other Neurosurgery clinicians in Atlanta

Sources

NPI registry (CMS NPPES, November 2026; record last updated July 10, 2013), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1174740344. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.