NPI Portal NPI Lookup & Verification

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

Dr. Martin C Harris, DPM

Podiatrist in Plainville, MA · enumerated 2006 · practices at Martin C Harris Dpm PC.

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

National Provider Identifier

1821057001

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Registry record

Entity type Individual (Type 1)
Name Dr. Martin C Harris
Credential DPM
Sex Male
Practice address Plainville, MA, 02762
Fax (508) 695-6169
Enumeration date Mar 17, 2006
Last updated in NPPES Mar 4, 2008

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 1521 (MA) Primary
213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License 188 (RI) Secondary
DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM credential

Other identifiers

Identifier Type State Issuer
71242 Other - BCBS WOONS
Y70622 Other MA BLUE SHIELD OF MA
0334928 Medicaid MA -
0000007042 Other RI RHODE ISLAND BLUE SHIELD
203049 Other RI BLUE CHIP
2702001 Other - UNITED HEALTH
0009562 Other MA NEIGHBORHOOD HEALTH
13038 Other - HANCOCK
0012071 Other RI WELFARE
1521 Other MA REGISTERED POD
188 Other RI REGISTERED POD
33086 Other - HPHC
715018 Other - TUFTS IPA 13

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

Is NPI 1821057001 active?
Yes, as of the latest NPPES snapshot, NPI 1821057001 is active (record last updated 2008-03-04).
How do I verify Martin Harris's NPI record?
Cross-check NPI 1821057001 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 2008-03-04.