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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. S Sofia Haffenreffer, DC

Chiropractor in North Hampton, NH · enumerated 2007 · practices at Back To Health Chiropractic.

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

National Provider Identifier

1770632770

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Registry record

Entity type Individual (Type 1)
Name Dr. S Sofia Haffenreffer
Credential DC
Sex Female
Practice address 18 Lafayette Rd, North Hampton, NH, 03862
Phone (603) 964-1844
Fax (603) 964-7187
Enumeration date Jan 9, 2007
Last updated in NPPES Jul 16, 2012

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 1481093 (NH) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
1770632770 Other NH HARVARD PILGRIM HEALTHCARE
0508953Y0NH01 Other NH BLUE CROSS
7203740 Other - AETNA

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

What specialty is S Haffenreffer?
S Haffenreffer is registered in NPPES with the primary taxonomy of Chiropractor. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-16.