Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David I Shalowitz

Gynecologic Oncology Physician in Grand Rapids, MI · enumerated 2010.

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

National Provider Identifier

1649594136

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. David I Shalowitz

Sex Male

Practice address 145 Michigan St Ne Ste 4100, Grand Rapids, MI, 49503

Phone (616) 486-6000

Enumeration date Mar 26, 2010

Last updated in NPPES Feb 23, 2026

Taxonomy & licenses

207VX0201X Gynecologic Oncology Physician Allopathic & Osteopathic Physicians · License 4301508945 (MI) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify David Shalowitz's NPI record?

Cross-check NPI 1649594136 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649594136 active?

Yes, as of the latest NPPES snapshot, NPI 1649594136 is active (record last updated 2026-02-23).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-23.