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Gregory Janeczko, MD
NPI 1457497869 · Anesthesiology Physician · Springfield, MO
Gregory Janeczko, MD is a Anesthesiology Physician provider in Springfield, MO (NPI 1457497869).
Provider details
- NPI number
- 1457497869
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R9127 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
1235 E Cherokee St
Springfield, MO 65804-2203
Phone: (417) 820-2829
Fax: (417) 820-8852
Street-level locationGet directions
Mailing address
Po Box 2580
Springfield, MO 65801-2580
Registry dates
- Enumerated
- 2007-01-30
- Last updated
- 2008-07-11
Frequently asked questions
- What is Gregory Janeczko's NPI number?
- Gregory Janeczko's National Provider Identifier (NPI) is 1457497869, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Janeczko's specialty?
- Gregory Janeczko is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Janeczko located?
- Gregory Janeczko's practice location on file with NPPES is 1235 E Cherokee St, Springfield, MO 65804-2203.
- What is Gregory Janeczko's phone number?
- The practice phone number listed in the NPPES registry for Gregory Janeczko is (417) 820-2829.
- Is Gregory Janeczko's NPI active?
- Yes — Gregory Janeczko's NPI (1457497869) is active in the NPPES registry as of the last update on 2008-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.