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NPISignal

Individual Healthcare Provider

Dennis Patrick Grusenmeyer, MD

NPI Record: ActiveHospitalist
NPI1871568113
Keene, New Hampshire

Provider's NPPES record last updated: September 20, 2023

Overview

Entity Type
Individual Healthcare Provider
NPI
1871568113
Primary Specialty
Hospitalist
Practice Location
Keene, New Hampshire
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 21, 2026, 8:37 AM 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

  • Hospitalist

    Allopathic & Osteopathic Physicians

    Primary

    Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

    Taxonomy code 208M00000X
  • Internal Medicine

    Allopathic & Osteopathic Physicians

    A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

    Taxonomy code 207R00000X

Provider-Reported License Information

Hospitalist (New Hampshire)
20152
Internal Medicine (North Carolina)
2017-0031
Internal Medicine (Washington)
MD60983758
Internal Medicine (Virginia)
0101235353
Internal Medicine (Oregon)
MD191698
Hospitalist (Washington)
MD60983758
Hospitalist (North Carolina)
2017-0031
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

580 Court St

Keene, New Hampshire 03431

Phone: (603) 354-5400

Additional Practice Location

2801 N Gantenbein Ave

Portland, Oregon 97227-1623

Phone: (503) 413-8407

Fax: (503) 413-6951

Additional Practice Location

3241 Western Branch Blvd

Chesapeake, Virginia 23321-5260

Phone: (757) 686-3508

Fax: (757) 686-0541

Additional Practice Location

888 Swift Blvd

Richland, Washington 99352-3514

Phone: (509) 942-2648

Fax: (509) 942-2812

Additional Practice Location

509 Biltmore Ave

Asheville, North Carolina 28801-4601

Phone: (828) 213-4411

Fax: (828) 213-0275

Additional Practice Location

590 Court St

Keene, New Hampshire 03431-1719

Phone: (603) 354-5400

Additional Practice Location

3043 Ne 28th St

Lincoln City, Oregon 97367-4518

Phone: (541) 994-3661

Record Information

Enumeration Date
February 21, 2006
Provider's NPPES Record Last Updated
September 20, 2023
Certification Date
September 20, 2023
NPISignal NPPES Dataset
August 2026

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