Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark David Solomon, M.D.

Nephrology Physician in Mount Sinai, NY · enumerated 2006.

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

National Provider Identifier

1336151158

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark David Solomon

Credential M.D.

Sex Male

Practice address 701 Route 25a, Suite B1, Mount Sinai, NY, 11766

Phone (631) 331-4403

Fax (631) 331-1932

Enumeration date Aug 12, 2006

Last updated in NPPES Oct 2, 2008

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 188451 (NY) 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
01552189	Medicaid	NY	-
49H972	Other	NY	EMPIRE BCBS
PRV0004550	Other	NY	MONTEFIORE
4611929	Other	NY	AETNA
0C4369	Other	NY	PHS
0570430012	Other	NY	CIGNA
110090140	Other	NY	RAILROAD MEDICARE
43342	Other	NY	VYTRA
P846294	Other	NY	OXFORD

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

What specialty is Mark Solomon?

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

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-02.