Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John J. Clarity, D.P.M.

Podiatrist in Lowell, MA · enumerated 2005.

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

National Provider Identifier

1912994211

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Registry record

Entity type Individual (Type 1)

Name Dr. John J. Clarity

Credential D.P.M.

Sex Male

Practice address Lowell, MA, 01854

Phone (978) 452-0657

Fax (978) 452-0815

Enumeration date Oct 2, 2005

Last updated in NPPES Jan 15, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License 1539 (MA) Primary

213ES0131X Foot Surgery Podiatrist Podiatric Medicine & Surgery Service Providers · License 1539 (MA) Secondary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM 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

Is NPI 1912994211 active?

Yes, as of the latest NPPES snapshot, NPI 1912994211 is active (record last updated 2014-01-15).

How do I verify John Clarity's NPI record?

Cross-check NPI 1912994211 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-15.