Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephen B Schloss, MD

Urology Physician in Concord, MA · enumerated 2005.

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

National Provider Identifier

1588662407

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Registry record

Entity type Individual (Type 1)

Name Stephen B Schloss

Credential MD

Sex Male

Practice address 131 Ornac, Suite 740/50, Concord, MA, 01742

Phone (978) 369-5551

Fax (978) 369-1580

Enumeration date Jul 13, 2005

Last updated in NPPES Nov 22, 2010

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 52760 (MA) Primary

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
110075576A	Medicaid	MA	-

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 Stephen Schloss?

Stephen Schloss is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-22.