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LEONARD T ONEILL MD
NPI 1215907787
Internal Medicine in Kalamazoo, MI

Active since January 25, 2006
535 S BURDICK ST, KALAMAZOO, MI 49007(269) 341-8822(269) 341-7518 Get Directions Write a Review

NPPES record last updated: October 16, 2014. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Leonard T Oneill Md NPPES

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

LEONARD T ONEILL MD (NPI 1215907787) is an individual internal medicine provider in Kalamazoo, Michigan, licensed in Michigan (4301046136) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1215907787
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameLEONARD T ONEILLCredential: MD
Location Address535 S BURDICK STKalamazoo, MI 49007-5294
Mailing Address535 S Burdick StKalamazoo, MI 49007-5294 · (269) 341-8822 · Fax (269) 341-7518
Phone(269) 341-8822
Fax(269) 341-7518
Sole ProprietorNo
Enumeration DateJanuary 25, 2006
Last NPPES UpdateOctober 16, 2014
✔ NPI 1215907787 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MI · 4301046136
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.
535 S BURDICK ST, Kalamazoo, MI 49007
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Other Identifiers 7

Other1417961137MI · Bcbsm - Bmh
Medicare PINM20520025MI
OtherCA4396MI · Railroad Medicare
Medicare UPIND17320
Medicaid3244331MI
Medicare PINC97618373 - BMHMI
Medicaid1215907787MI

Other Providers at the Same Location NPPES 8

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

SANDRA FIELDS NEAL & ASSOC INC
Clinic/Center (Medically Fragile Infants and Children Day Care)
535 S BURDICK ST, SUITE 254
KALAMAZOO, MI 49007
Kalamazoo County (269) 381-5213
DR. OWEN MARK BEROW MD
Internal Medicine
535 S BURDICK ST, #248
KALAMAZOO, MI 49007
Kalamazoo County (269) 385-4448
MRS. HELENA PUHALJ P.A.-C
Physician Assistant
535 S BURDICK ST
KALAMAZOO, MI 49007
Kalamazoo County (269) 341-8822
CYNTHIA ANN WORKMAN PA-C
Physician Assistant
535 S BURDICK ST, SUITE 160
KALAMAZOO, MI 49007
Kalamazoo County (269) 388-5864
TOTAL RENAL CARE INC
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
535 S BURDICK ST, STE 110
KALAMAZOO, MI 49007
Kalamazoo County (269) 343-0251
DR. DEBRA K BEARD MD
Internal Medicine
535 S BURDICK ST, SUITE 256
KALAMAZOO, MI 49007
Kalamazoo County (269) 341-8822
DR. DERCIO ARAUJO MENDONCA MD
Internal Medicine (Pulmonary Disease)
535 S BURDICK ST, SUITE 160
KALAMAZOO, MI 49007
Kalamazoo County (269) 388-5864
SANDRA L FIELDS NEAL MSW CSW
Social Worker (Clinical)
535 S BURDICK ST, SUITE 254
KALAMAZOO, MS 49007
Kalamazoo County (269) 381-5213

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Leonard Oneill's NPI number?

The NPI number for Leonard Oneill is 1215907787. It was assigned to this individual provider in the NPPES registry on January 25, 2006.

Where is Leonard Oneill located?

Leonard Oneill practices at 535 S Burdick St, Kalamazoo, MI 49007. The listed phone number is (269) 341-8822.

What is Leonard Oneill's specialty?

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

When was this NPI record last updated?

The NPPES record for Leonard Oneill was last updated on October 16, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.