Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Karen Sue Greenfield, PT

Physical Therapist in Malverne, NY · enumerated 2008.

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

National Provider Identifier

1548438161

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Registry record

Entity type Individual (Type 1)

Name Mrs. Karen Sue Greenfield

Credential PT

Sex Female

Practice address 4 Weber Ave, Malverne, NY, 11565

Phone (516) 410-5181

Enumeration date Feb 17, 2008

Last updated in NPPES Jul 3, 2012

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 008746-1 (NY) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Karen Greenfield?

Karen Greenfield is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Ellen Naiman Michaels Physical Therapist · Malverne, NY NPI 1578509923 Patricia Sullivan Adult Health Nurse Practitioner · Malverne, NY NPI 1194816637 Ronald Michelli Chiropractor · Malverne, NY NPI 1225188402 Malverne Medical Healthcare, P.C. Family Medicine Physician · Malverne, NY NPI 1407077522 Darla Lynch Family Medicine Physician · Malverne, NY NPI 1679767180 Darla Lynch MD Pllc Family Medicine Physician · Malverne, NY NPI 1891942694 Alissa Mauceri Physical Therapist · Malverne, NY NPI 1346486776 Jong Han Acupuncturist · Malverne, NY NPI 1972831485

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-03.