Grabenstein Family Practice
NPI 1891861274 · Family Medicine Physician · Clarksville, TN
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grabenstein Family Practice is a Family Medicine Physician organization in Clarksville, TN (NPI 1891861274).
Provider details
- NPI number
- 1891861274
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Grabenstein, Owner(931) 552-8010
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-28
- Last updated
- 2015-07-29
Frequently asked questions
- What is Grabenstein Family Practice's NPI number?
- Grabenstein Family Practice's National Provider Identifier (NPI) is 1891861274, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Grabenstein Family Practice?
- Grabenstein Family Practice is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grabenstein Family Practice located?
- Grabenstein Family Practice's practice location on file with NPPES is 1822 Memorial Drive, Clarksville, TN 37043.
- What is Grabenstein Family Practice's phone number?
- The practice phone number listed in the NPPES registry for Grabenstein Family Practice is (931) 552-8010.
- Does Grabenstein Family Practice accept Medicare?
- Grabenstein Family Practice is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Grabenstein Family Practice?
- The authorized official listed on Grabenstein Family Practice's NPPES record is William Grabenstein, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Grabenstein Family Practice's NPI active?
- Yes — Grabenstein Family Practice's NPI (1891861274) is active in the NPPES registry as of the last update on 2015-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.