Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas Marshall Aaberg Jr., MD

Retina Specialist (Ophthalmology) Physician in Grand Rapids, MI · enumerated 2006 · practices at Retina Specialists of Michigan PC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1194753186

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas Marshall Aaberg Jr.

Credential MD

Sex Male

Practice address 5030 Cascade Rd Se, Grand Rapids, MI, 49546

Phone (616) 954-2020

Fax (616) 949-0408

Enumeration date Jun 29, 2006

Last updated in NPPES Jan 26, 2021

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 4301077476 (MI) Secondary

207WX0108X Uveitis and Ocular Inflammatory Disease (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 4301077476 (MI) Secondary

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 4301077476 (MI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Thomas Aaberg?

The National Provider Identifier (NPI) for Thomas Aaberg is 1194753186, a Type 1 (individual) record in the CMS NPPES registry.

Where does Thomas Aaberg practice?

The practice location on file with NPPES is in Grand Rapids, MI. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-26.