St. Charles Nephrology
NPI 1396945168 · Nephrology Physician · Saint Peters, MO
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
St. Charles Nephrology is a Nephrology Physician organization in Saint Peters, MO (NPI 1396945168).
Provider details
- NPI number
- 1396945168
- Entity type
- Organization
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Henrikas Juknis, President(636) 928-0123
- License
- 2000158727 (MO)
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
18 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
- 2007-07-20
- Last updated
- 2020-09-21
- Certified
- 2020-09-21
Frequently asked questions
- What is St. Charles Nephrology's NPI number?
- St. Charles Nephrology's National Provider Identifier (NPI) is 1396945168, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is St. Charles Nephrology?
- St. Charles Nephrology is classified in the NPPES registry as Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is St. Charles Nephrology located?
- St. Charles Nephrology's practice location on file with NPPES is 6 Jungermann Cir, Saint Peters, MO 63376-1621.
- What is St. Charles Nephrology's phone number?
- The practice phone number listed in the NPPES registry for St. Charles Nephrology is (636) 928-0123.
- Does St. Charles Nephrology accept Medicare?
- St. Charles Nephrology is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for St. Charles Nephrology?
- The authorized official listed on St. Charles Nephrology's NPPES record is Henrikas Juknis, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is St. Charles Nephrology's NPI active?
- Yes — St. Charles Nephrology's NPI (1396945168) is active in the NPPES registry as of the last update on 2020-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.