Dennis Patrick Grusenmeyer, MD
Hospitalist · Internal Medicine (CMS) · Keene, NH
At a glance
580 Court St, Keene, NH 03431
NPPES record updated Sep 20, 2023. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
580 Court StKeene, NH 03431
Additional reported practice locations
2801 N Gantenbein AvePortland, OR 972271623
Phone: 5034138407
Fax: 5034136951 3241 Western Branch Blvd
Chesapeake, VA 233215260
Phone: 7576863508
Fax: 7576860541 888 Swift Blvd
Richland, WA 993523514
Phone: 5099422648
Fax: 5099422812 509 Biltmore Ave
Asheville, NC 288014601
Phone: 8282134411
Fax: 8282130275 590 Court St
Keene, NH 034311719
Phone: 6033545400 3043 Ne 28Th St
Lincoln City, OR 973674518
Phone: 5419943661
Education & affiliations
- Medical / professional school
- University Of Cincinnati College Of Medicine
- Graduation year
- 1997
- CMS specialties
- Hospitalist · Internal Medicine
Practice groups
Reported hospital affiliations
- Legacy Mount Hood Medical Center Gresham, OR
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Hospitalist · Internal Medicine (CMS)
- Taxonomy code
- 208M00000X
- Enumeration date
- Feb 21, 2006
- Record updated
- Sep 20, 2023
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207R00000X
License reported: 2017-0031 NC
207R00000X
License reported: MD60983758 WA
207R00000X
License reported: 0101235353 VA
207R00000X
License reported: MD191698 OR
208M00000X
License reported: MD60983758 WA
208M00000X
License reported: 2017-0031 NC
208M00000X · Primary
License reported: 20152 NH
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
580 Court StKeene, NH 03431
- Phone
- (603) 354-5400
Mailing address
PO BOX 810HANOVER, NH 037550810
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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