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Dr. Nicholas Theodosakis II, MD, PHD

Dermatology Physician in Boston, MA · enumerated 2017.

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

National Provider Identifier

1992235311

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Registry record

Entity type Individual (Type 1)
Name Dr. Nicholas Theodosakis II
Credential MD, PHD
Sex Male
Practice address 50 Staniford St Ste 200, Boston, MA, 02114
Phone (617) 726-2914
Enumeration date Jun 18, 2017
Last updated in NPPES Aug 16, 2021

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 287040 (MA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Nicholas Theodosakis?
Nicholas Theodosakis is registered in NPPES with the primary taxonomy of Dermatology 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 2021-08-16.