Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Grace Hou MD PC

Surgical Oncology Physician in Tucson, AZ · enumerated 2008 · authorized official Grace Hou, President.

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

National Provider Identifier

1336317221

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Registry record

Entity type Organization (Type 2)

Legal business name Grace Hou MD PC

Practice address 6320 N Lacholla Blvd, Suite 340, Tucson, AZ, 85741

Phone (520) 575-7159

Fax (520) 742-0260

Enumeration date Feb 14, 2008

Last updated in NPPES Apr 17, 2008

Taxonomy & classification

2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License 22442 (AZ) Primary

Authorized official

Name Grace Hou

Title President

Phone (520) 575-7159

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-04-17. Verify at npiregistry.cms.hhs.gov.

Where is Grace Hou MD PC located?

The practice location on file with NPPES is in Tucson, AZ.

Providers at this address

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Grace Hou Surgical Oncology Physician · Tucson, AZ NPI 1801908181

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-17.