Yannis Lafazanos, DO
NPI 1538863790 · Gastroenterology Physician · Niles, IL
Yannis Lafazanos, DO is a Gastroenterology Physician provider in Niles, IL (NPI 1538863790).
Provider details
- NPI number
- 1538863790
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 125.081753 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 24 | 12 |
| Rosuvastatin Calcium | 14 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1775 Ballard RdPark Ridge, IL 60068-1005Phone: (847) 318-9340
Registry dates
- Enumerated
- 2023-03-29
- Last updated
- 2026-04-06
- Certified
- 2026-04-06
Frequently asked questions
- What is Yannis Lafazanos's NPI number?
- Yannis Lafazanos's National Provider Identifier (NPI) is 1538863790, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yannis Lafazanos's specialty?
- Yannis Lafazanos is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Yannis Lafazanos located?
- Yannis Lafazanos's practice location on file with NPPES is 7900 N Milwaukee Ave Ste 19, Niles, IL 60714-3239.
- What is Yannis Lafazanos's phone number?
- The practice phone number listed in the NPPES registry for Yannis Lafazanos is (847) 318-9595.
- Is Yannis Lafazanos's NPI active?
- Yes — Yannis Lafazanos's NPI (1538863790) is active in the NPPES registry as of the last update on 2026-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.