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

Ofer Fass, MD

Individual provider Internal Medicine Physician · NPI 1154856714

Ofer Fass, MD is a Gastroenterology in Chicago, Illinois. Graduated from Harvard Medical School in 2017, 9 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois and New York.

Years since qualifying
9
Trained at
Harvard Medical School
Licensed in
IL, NY
In the registry since
2017
Specialties on file
2
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

259 E Erie St Ste 1600
Chicago, IL 60611-3111
Phone: (312) 695-5620
Fax: (312) 695-2778
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 550 1st Ave, New York, NY 10016-6402 — (646) 929-7870

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 036170527 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 298903 (NY)

Record details

NPI number1154856714
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 20, 2017
Last updated in NPPESDecember 17, 2024
Certification dateDecember 17, 2024

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2017 (9 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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