DR. JACOB WILLIAM GROENENDYK MD
NPI 1639638505
Internal Medicine in Chicago, IL

Q: What is Jacob Groenendyk's NPI number?

The NPI number for Jacob Groenendyk is 1639638505. It was assigned to this individual provider in the NPPES registry on March 19, 2019.

Q: What is Jacob Groenendyk's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Jacob Groenendyk was last updated on June 24, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 19, 2019

251 E HURON ST, CHICAGO, IL 60611(312) 926-2000 Get Directions Write a Review

NPPES record last updated: June 24, 2019. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Jacob William Groenendyk Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JACOB WILLIAM GROENENDYK MD (NPI 1639638505) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (125.073852) and active in the NPI registry since March 2019.

NPPES Registry Identity

NPI1639638505

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. JACOB WILLIAM GROENENDYKCredential: MD

Location Address251 E HURON STChicago, IL 60611-3055

Mailing Address251 E Huron StChicago, IL 60611-3055 · (312) 926-2000

Phone(312) 926-2000

Sole ProprietorNo

Enumeration DateMarch 19, 2019

Last NPPES UpdateJune 24, 2019

✔ NPI 1639638505 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in IL · 125.073852

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

251 E HURON ST, Chicago, IL 60611

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARK WANG M.D.

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251 E HURON ST, FEINBERG PAVILION
CHICAGO, IL 60611

Cook County (312) 503-8144

DR. MARLEY ANN DOYLE M/D.

Psychiatry & Neurology (Psychiatry)

251 E HURON ST, GALTER 3-150, C
CHICAGO, IL 60611

Cook County (312) 926-6895

CASSIDY SCHWAB MD

Anesthesiology