Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Stephanie Sierra, DVM
Veterinarian in Portsmouth, NH · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881974236
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Registry record
Entity type Individual (Type 1)
Name Stephanie Sierra
Credential DVM
Sex Female
Practice address 215 Commerce Way Ste 100, Portsmouth, NH, 03801
Phone (603) 433-0056
Enumeration date Aug 17, 2011
Last updated in NPPES Jun 6, 2013
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 Stephanie Sierra?
Stephanie Sierra is registered in NPPES with the primary taxonomy of Veterinarian. 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 → Abel Jarell Dermatology Physician · Portsmouth, NH NPI 1275669996 Samantha Laclair Veterinarian · Portsmouth, NH NPI 1073856571 Courtney James Veterinarian · Portsmouth, NH NPI 1053754051 Jill Bickford Adult Health Nurse Practitioner · Portsmouth, NH NPI 1114793791 Kathryn Lacrosse Student in an Organized Health Care Education/Training Program · Portsmouth, NH NPI 1427984442
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-06.