Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Viktor Silver, MD

Neurological Surgery Physician in Sherman, TX · enumerated 2006.

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

National Provider Identifier

1750354437

Verified

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Registry record

Entity type Individual (Type 1)

Name Mark Viktor Silver

Credential MD

Sex Male

Practice address 300 N Highland Ave Ste 310, Sherman, TX, 75092

Phone (903) 957-0003

Fax (903) 957-0007

Enumeration date Feb 11, 2006

Last updated in NPPES Feb 21, 2014

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License ME91668 (FL) Secondary

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License N1605 (TX) 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
2711290-00	Medicaid	FL	—
100702998A	Medicaid	GA	—

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 Mark Silver?

Mark Silver is registered in NPPES with the primary taxonomy of Neurological Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-02-21.