John Leschke, MD
NPI 1083653125 · Anesthesiology Physician · Oshkosh, WI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Leschke, MD is a Anesthesiology Physician provider in Oshkosh, WI (NPI 1083653125).
Provider details
- NPI number
- 1083653125
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 27019020 (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
20 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
- 2006-06-05
- Last updated
- 2010-07-09
Frequently asked questions
- What is John Leschke's NPI number?
- John Leschke's National Provider Identifier (NPI) is 1083653125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Leschke's specialty?
- John Leschke is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Leschke located?
- John Leschke's practice location on file with NPPES is 500 S Oakwood Rd, Oshkosh, WI 54904-7944.
- What is John Leschke's phone number?
- The practice phone number listed in the NPPES registry for John Leschke is (920) 223-2000.
- Does John Leschke accept Medicare?
- John Leschke is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Leschke's NPI active?
- Yes — John Leschke's NPI (1083653125) is active in the NPPES registry as of the last update on 2010-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.