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NPISignal

Individual Healthcare Provider

Harold Fletcher Keyserling, M.D.

NPI Record: ActiveRadiology — Diagnostic Neuroimaging
NPI1023035995
Sacramento, California

Provider's NPPES record last updated: November 14, 2025

Overview

Entity Type
Individual Healthcare Provider
NPI
1023035995
Primary Specialty
Radiology — Diagnostic Neuroimaging
Practice Location
Sacramento, California
Sole Proprietor
No

Federal Screening

NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.

List of Excluded Individuals/Entities (LEIE)

HHS Office of Inspector General

No potential match identified

No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.

Source data
September 10, 2026
Records indexed
84,001
Screened
Sep 17, 2026, 10:41 PM UTC

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

SAM.gov Exclusions

U.S. General Services Administration

Not checked

SAM.gov Exclusions was not checked.

SAM.gov screening is not configured on this deployment. No SAM check has been performed.

Screened
Not checked

This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

Run a name-based screening

Searches OIG LEIE and SAM.gov by name and reviews every potential match.

Specialties & Taxonomies

  • Radiology

    Diagnostic Neuroimaging

    Allopathic & Osteopathic Physicians

    Primary

    A licensed physician, who has completed a residency program in Neurology, and who has additional training, experience, and competence in the standards of performance and interpretation of Magnetic Resonance Imaging (MRI / MRA) of the head, spine, and peripheral nerves, and Computed Tomography (CT) of the head and spine. Physicians are trained in the administration of contrast media and the recognition and treatment of adverse reactions to contrast media. Neuroimaging training encompasses thorough knowledge of clinical neurology, neurophysiology, neuroanatomy, neurochemistry, neuropharmacology, and dynamics of cerebrospinal fluid circulation. Physicians possess special expertise in the technical aspects and clinical applications of each of the modalities and techniques of neuroimaging.

    Taxonomy code 2085D0003X
  • Radiology

    Diagnostic Radiology

    Allopathic & Osteopathic Physicians

    A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

    Taxonomy code 2085R0202X
  • Radiology

    Neuroradiology

    Allopathic & Osteopathic Physicians

    A radiologist who diagnoses and treats diseases utilizing imaging procedures as they relate to the brain, spine and spinal cord, head, neck and organs of special sense in adults and children.

    Taxonomy code 2085N0700X

Provider-Reported License Information

Radiology (California)
C198022
Radiology (California)
782376
Radiology (North Carolina)
200201269
Radiology (California)
782376
License numbers are reported by the provider to NPPES and are not independently verified by NPISignal against any state licensing board. Confirm current license status directly with the issuing state board.

Practice Locations

Practice Location

3161 L St

Sacramento, California 95816-5234

Phone: (916) 878-3495

Additional Practice Location

1670 Clairmont Rd

Decatur, Georgia 30033-4004

Phone: (404) 321-6111

Record Information

Enumeration Date
July 16, 2006
Provider's NPPES Record Last Updated
November 14, 2025
Certification Date
November 14, 2025
NPISignal NPPES Dataset
August 2026

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