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Nicholas A Demonaco, M.D.

Hematology & Oncology Physician in Clinton, MD · enumerated 2006.

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

National Provider Identifier

1871535245

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Registry record

Entity type Individual (Type 1)
Name Nicholas A Demonaco
Credential M.D.
Sex Male
Practice address 8926 Woodyard Rd, Suite 201, Clinton, MD, 20735
Phone (301) 868-7911
Fax (301) 868-2285
Enumeration date Jun 12, 2006
Last updated in NPPES May 14, 2008

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License D0064234 (MD) 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
207902 Other - PRIORITY PARTNERS
1275875 Other MD AETNA HMO
B6480007 Other DC BC/BS OF DC
037962600 Medicaid DC -
88980302 Other MD BC/BS MD - GREENBELT
7699813 Other - CIGNA
02810008 Other DC BC/BS OF DC
88980301 Other MD BC/BS MD - CLINTON
2148054 Other MD ALLIANCE
2148054 Other - MAMSI
268006 Other - ANTHEM BS - CLINTON
268044 Other MD ANTHEM BS - GREENBELT
412404900 Medicaid MD -

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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 Nicholas Demonaco?
Nicholas Demonaco is registered in NPPES with the primary taxonomy of Hematology & Oncology 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 2008-05-14.