Karl Orth, MD
NPI 1891783536 · Anesthesiology Physician · Neenah, WI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Orth, MD is a Anesthesiology Physician provider in Neenah, WI (NPI 1891783536).
Provider details
- NPI number
- 1891783536
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 42391-020 (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
- 2005-10-06
- Last updated
- 2007-10-31
Frequently asked questions
- What is Karl Orth's NPI number?
- Karl Orth's National Provider Identifier (NPI) is 1891783536, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Orth's specialty?
- Karl Orth is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Orth located?
- Karl Orth's practice location on file with NPPES is 130 2nd St, Neenah, WI 54956-2883.
- What is Karl Orth's phone number?
- The practice phone number listed in the NPPES registry for Karl Orth is (920) 729-3332.
- Does Karl Orth accept Medicare?
- Karl Orth is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Orth's NPI active?
- Yes — Karl Orth's NPI (1891783536) is active in the NPPES registry as of the last update on 2007-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.