Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tammy Thi Do, RDH
Dental Hygienist in Arvada, CO · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1215254974
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Registry record
Entity type Individual (Type 1)
Name Tammy Thi Do
Credential RDH
Sex Female
Practice address 11005 Ralston Rd, Suite 202, Arvada, CO, 80004
Phone (303) 360-6276
Fax (303) 762-6552
Enumeration date Apr 21, 2010
Last updated in NPPES Apr 21, 2010
Taxonomy & licenses
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
What specialty is Tammy Do?
Tammy Do is registered in NPPES with the primary taxonomy of Dental Hygienist. 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 → Grady Holder Family Medicine Physician · Arvada, CO NPI 1366543902 Diane Barnes Nurse Practitioner · Arvada, CO NPI 1275672461 Larry Ward General Practice Dentistry · Arvada, CO NPI 1275653917 Dolores Sangiuliano Registered Nurse · Arvada, CO NPI 1417277542 Meghan Cito Clinical Social Worker · Arvada, CO NPI 1396094082 Lindsey Rushton Dental Hygienist · Arvada, CO NPI 1891192001
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-04-21.