Atanas Ivanov, FNP
NPI 1689488678 · Family Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Atanas Ivanov, FNP is a Family Nurse Practitioner provider in Chicago, IL (NPI 1689488678).
Provider details
- NPI number
- 1689488678
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 209031395 (IL)
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
1 yr 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
- 2025-02-03
- Last updated
- 2025-07-02
- Certified
- 2025-07-02
Frequently asked questions
- What is Atanas Ivanov's NPI number?
- Atanas Ivanov's National Provider Identifier (NPI) is 1689488678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Atanas Ivanov's specialty?
- Atanas Ivanov is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Atanas Ivanov located?
- Atanas Ivanov's practice location on file with NPPES is 2003 W Fulton St, Chicago, IL 60612-2345.
- What is Atanas Ivanov's phone number?
- The practice phone number listed in the NPPES registry for Atanas Ivanov is (312) 243-2223.
- Does Atanas Ivanov accept Medicare?
- Atanas Ivanov is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Atanas Ivanov's NPI active?
- Yes — Atanas Ivanov's NPI (1689488678) is active in the NPPES registry as of the last update on 2025-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.