John Knorr, CRNA
NPI 1578542890 · Certified Registered Nurse Anesthetist · Carroll, IA
John Knorr, CRNA is a Certified Registered Nurse Anesthetist provider in Carroll, IA (NPI 1578542890).
Provider details
- NPI number
- 1578542890
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Male
- Sole proprietor
- No
- License
- 073443 (IA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
- 2006-01-13
- Last updated
- 2009-03-02
Frequently asked questions
- What is John Knorr's NPI number?
- John Knorr's National Provider Identifier (NPI) is 1578542890, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Knorr's specialty?
- John Knorr is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Knorr located?
- John Knorr's practice location on file with NPPES is 311 S Clark St, Carroll, IA 51401-3038.
- What is John Knorr's phone number?
- The practice phone number listed in the NPPES registry for John Knorr is (712) 792-3581.
- Is John Knorr's NPI active?
- Yes — John Knorr's NPI (1578542890) is active in the NPPES registry as of the last update on 2009-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.