NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Zia Rahman, MD

Hematology & Oncology Physician in Hartford, CT · enumerated 2005 · practices at Connecticut Radiation Oncology, P.C..

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

National Provider Identifier

1417950494

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Zia Rahman
Credential MD
Sex Male
Practice address 94 Woodland St, Hartford, CT, 06105
Phone (860) 714-4680
Fax (860) 714-8047
Enumeration date May 24, 2005
Last updated in NPPES Dec 12, 2018

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 029603 (CT) Secondary
207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 029603 (CT) Secondary
207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 029603 (CT) 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
001296038 Medicaid CT -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Zia Rahman?
Zia Rahman 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.
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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-12.