I. Alex Iwaniw, M.D.
NPI 1265578967 · Internal Medicine Physician · Peekskill, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
I. Alex Iwaniw, M.D. is a Internal Medicine Physician provider in Peekskill, NY (NPI 1265578967).
Provider details
- NPI number
- 1265578967
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 181599-1 (NY)
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
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
Mailing address
Registry dates
- Enumerated
- 2007-01-29
- Last updated
- 2015-08-13
Frequently asked questions
- What is I. Alex Iwaniw's NPI number?
- I. Alex Iwaniw's National Provider Identifier (NPI) is 1265578967, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is I. Alex Iwaniw's specialty?
- I. Alex Iwaniw is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is I. Alex Iwaniw located?
- I. Alex Iwaniw's practice location on file with NPPES is 211 S Division St, Peekskill, NY 10566-3611.
- What is I. Alex Iwaniw's phone number?
- The practice phone number listed in the NPPES registry for I. Alex Iwaniw is (914) 736-0400.
- Does I. Alex Iwaniw accept Medicare?
- I. Alex Iwaniw is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is I. Alex Iwaniw's NPI active?
- Yes — I. Alex Iwaniw's NPI (1265578967) is active in the NPPES registry as of the last update on 2015-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.