Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Susan M Kwaiter-Sadler, O.D.

Optometrist in Medfield, MA · enumerated 2007 · practices at Ilana Orelowitz, O.D. Inc.

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

National Provider Identifier

1629100144

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Registry record

Entity type Individual (Type 1)

Name Dr. Susan M Kwaiter-Sadler

Credential O.D.

Sex Female

Practice address 67 West St, Medfield, MA, 02052

Phone (508) 359-9969

Enumeration date Mar 10, 2007

Last updated in NPPES Aug 16, 2010

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 4167-TP (MA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD 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 Susan Kwaiter-Sadler?

The National Provider Identifier (NPI) for Susan Kwaiter-Sadler is 1629100144, a Type 1 (individual) record in the CMS NPPES registry.

Where does Susan Kwaiter-Sadler practice?

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

Other providers at this practice address

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Ilana Orelowitz, O.D. Inc Optometrist · Medfield, MA NPI 1033201330

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-16.