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Dr. Lars J. Grimm

Radiology (Diagnostic Radiology Physician)

  • Medicare participating

At a glance

Years since graduation
17
In the NPI registry since
2009
Medicare patients seen, 2024
610

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. What an NPI is

Education and training

  • 2009Medical school: Yale University School of Medicine
  • 2009Registered with an NPI (national billing number; not a license date)

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

  • Diagnostic Radiology Physician primary
    NC license 2013-01316
  • Student in an Organized Health Care Education/Training Program

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

Map: Radiology 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
610
Services billed
1,266
Patients’ average age
72
Most frequent Medicare services, 2023
ServiceTimesPatients
Screening mammography326326
Screening 3d breast mammography323323
Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066)121120
Diagnostic mammography of 1 breast8484
Diagnostic mammography of both breasts5958
Limited ultrasound scan of 1 breast5655
Mri scan of both breasts1313
Biopsy of breast and placement of locating device using x-ray with needle, first growth1212

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, 1 companies reported 13 payments worth $10,775 in total to this clinician.

By company
Hologic Inc$10,775
By type
Consulting Fee$10,000
Travel and Lodging$686
Food and Beverage$89.11

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Jun 17, 2025Hologic Inc
Jun 17, 2025
Consulting Fee
None · Breast and Skeletal Health
Company’s description1042035
$6,000
Dec 29, 2025Hologic Inc
Dec 29, 2025
Consulting Fee
BioZorb · Breast and Skeletal Health
Company’s description1043511
$1,500
Aug 19, 2025Hologic Inc
Aug 19, 2025
Consulting Fee
None · Breast and Skeletal Health
Company’s description1042494
$500
Sep 9, 2025Hologic Inc
Sep 9, 2025
Consulting Fee
None · Breast and Skeletal Health
Company’s description1020207
$500
Dec 9, 2025Hologic Inc
Dec 9, 2025
Consulting Fee
None · Breast and Skeletal Health
Company’s description1043375
$500
Feb 18, 2025Hologic Inc
Feb 18, 2025
Consulting Fee
None · Breast and Skeletal Health
Company’s description1041016
$500
Feb 25, 2025Hologic Inc
Feb 25, 2025
Consulting Fee
None · Breast and Skeletal Health
Company’s description1041072
$500
May 23, 2025Hologic Inc
May 23, 2025
Travel and Lodging
travel to Fort Worth, TX · in-kind
$358
Apr 11, 2025Hologic Inc
Apr 11, 2025
Travel and Lodging
travel to Fort Worth, TX · in-kind
$286
Jun 17, 2025Hologic Inc
Jun 17, 2025
Travel and Lodging
None · Breast and Skeletal Health · travel to WASHINGTON, DC
Company’s description1042035
$42.00

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 North Carolina →

Other Radiology clinicians in Durham

Sources

NPI registry (CMS NPPES, November 2026; record last updated August 24, 2026), 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 1619110624. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.