NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Niaz M. Haque, MD

Hematology & Oncology Physician in Weston, WI · enumerated 2007 · practices at Marshfield Clinic, Inc..

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

National Provider Identifier

1871783407

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Niaz M. Haque
Credential MD
Sex Male
Practice address 3501 Cranberry Blvd, Weston, WI, 54476
Enumeration date Jul 30, 2007
Last updated in NPPES Sep 5, 2012

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 20720 (MS) Secondary
207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 57472 (WI) 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
09807236 Medicaid MS -
1077402 Medicaid LA -

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

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 Niaz Haque?
Niaz Haque 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-05.