Gregory Leitheiser, MD
NPI 1659307361 · Family Medicine Physician · Cumberland, WI
Gregory Leitheiser, MD is a Family Medicine Physician provider in Cumberland, WI (NPI 1659307361).
Provider details
- NPI number
- 1659307361
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 29051 (WI)
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
- 2006-06-24
- Last updated
- 2010-12-30
Frequently asked questions
- What is Gregory Leitheiser's NPI number?
- Gregory Leitheiser's National Provider Identifier (NPI) is 1659307361, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Leitheiser's specialty?
- Gregory Leitheiser is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Leitheiser located?
- Gregory Leitheiser's practice location on file with NPPES is 1475 Webb St, Cumberland, WI 54829.
- What is Gregory Leitheiser's phone number?
- The practice phone number listed in the NPPES registry for Gregory Leitheiser is (715) 822-2231.
- Is Gregory Leitheiser's NPI active?
- Yes — Gregory Leitheiser's NPI (1659307361) is active in the NPPES registry as of the last update on 2010-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.