Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Lukasz Iwanczyk, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1114953262

Dr. Lukasz Iwanczyk, MD is an Internal Medicine in Ventura, California. Graduated from New York Medical College in 2000, 26 years ago. Practices with Pacific Inpatient Physicians, a 34-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
26
Trained at
New York Medical College
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5855 Olivas Park Dr Hospitalist Dept
Ventura, CA 93003-7672
Phone: (805) 667-2801
Fax: (805) 667-2865
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence A79334 (CA)

Record details

NPI number1114953262
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2006
Last updated in NPPESMay 8, 2015
Mailing address147 N Brent St, Hospitalist Department, Ventura, CA 93003-2809

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesGERIATRIC MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 2000 (26 years in practice)
Group practice Pacific Inpatient Physicians — 34 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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