Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sophie X Deng

Physical Therapist in Gaithersburg, MD · enumerated 2006.

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

National Provider Identifier

1285719815

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Registry record

Entity type Individual (Type 1)

Name Sophie X Deng

Sex Female

Practice address 957 Russell Ave, Suite B, Gaithersburg, MD, 20879

Phone (301) 987-0596

Fax (301) 987-0398

Enumeration date Oct 25, 2006

Last updated in NPPES Mar 1, 2017

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License U01138 (MD) Secondary

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 17654 (MD) Primary

Other identifiers

Identifier	Type	State	Issuer
F578	Other	MD	DCBCBS
F850	Other	MD	DCBCBS
007328800	Medicaid	MD	-
553AHO	Other	MD	MDBCBS
BG41	Other	MD	MDBCBS

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 Sophie Deng?

Sophie Deng 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-01.