Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Connor O'Neill-Dee, MD
Nephrology Physician in Boston, MA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1194301051
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Registry record
Entity type Individual (Type 1)
Name Connor O'Neill-Dee
Credential MD
Sex Male
Practice address 725 Albany Street, Suite 8c, Shapiro Bldg, Boston, MA, 02118
Phone (617) 414-8680
Fax (617) 414-8664
Enumeration date Mar 22, 2021
Last updated in NPPES Jul 10, 2026
Taxonomy & licenses
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 1023230 (MA) Secondary
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.
Frequently asked questions
Where does Connor O'Neill-Dee practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Connor O'Neill-Dee?
The National Provider Identifier (NPI) for Connor O'Neill-Dee is 1194301051, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-10.