Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Gregory Shadrick Jr., D.C.

Chiropractor in Somerville, MA · enumerated 2007 · practices at Davis Square Chiropractic, PC.

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

National Provider Identifier

1922281567

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Registry record

Entity type Individual (Type 1)

Name Dr. David Gregory Shadrick Jr.

Credential D.C.

Sex Male

Practice address 49 Holland St, Somerville, MA, 02144

Phone (617) 625-8707

Fax (617) 666-1763

Enumeration date Dec 5, 2007

Last updated in NPPES Jul 28, 2016

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 3169 (MA) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

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

Where does David Shadrick practice?

The practice location on file with NPPES is in Somerville, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for David Shadrick?

The National Provider Identifier (NPI) for David Shadrick is 1922281567, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Davis Square Chiropractic, PC Chiropractor · Somerville, MA NPI 1710251632

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-28.