Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Stephen Klein, M.D.

Physical Medicine & Rehabilitation Physician in Bayside, NY · enumerated 2007 · practices at Won Sohn, M.D.,P.C..

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

National Provider Identifier

1316158397

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Registry record

Entity type Individual (Type 1)

Name Dr. Stephen Klein

Credential M.D.

Sex Male

Practice address Bayside, NY, 11361

Phone (212) 673-6083

Fax (718) 631-0195

Enumeration date May 24, 2007

Last updated in NPPES Oct 26, 2015

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

204C00000X Sports Medicine (Neuromusculoskeletal Medicine) Physician Allopathic & Osteopathic Physicians · License 156137-1 (NY) Secondary

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 156137 (NY) Primary

2081P2900X Pain Medicine (Physical Medicine & Rehabilitation) Physician Allopathic & Osteopathic Physicians · License 156137-1 (NY) Secondary

2081S0010X Sports Medicine (Physical Medicine & Rehabilitation) Physician Allopathic & Osteopathic Physicians · License 156137-1 (NY) Secondary

2084P0005X Neurodevelopmental Disabilities Physician Allopathic & Osteopathic Physicians · License 156137-1 (NY) Secondary

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

Other identifiers

Identifier	Type	State	Issuer
G300000087	Other	NY	PTAN

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 NPI 1316158397 active?

Yes, as of the latest NPPES snapshot, NPI 1316158397 is active (record last updated 2015-10-26).

How do I verify Stephen Klein's NPI record?

Cross-check NPI 1316158397 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Won Sohn, M.D.,P.C. Medical Specialty Clinic/Center · Bayside, NY NPI 1295025427

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-26.