NPI Portal NPI Lookup & Verification

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

Dr. Charles R Grubb, DO

Family Medicine Physician in Easton, PA · enumerated 2006 · practices at Lehigh Valley Physician Group.

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

National Provider Identifier

1780644831

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Registry record

Entity type Individual (Type 1)
Name Dr. Charles R Grubb
Credential DO
Sex Male
Practice address Easton, PA, 18045
Phone (484) 544-0122
Enumeration date Mar 24, 2006
Last updated in NPPES Sep 26, 2022

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 25MB03357700 (NJ) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License OS003693L (PA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
051817 Other NJ HORIZON BC/BS
2118788002 Other NJ AMERIHEALTH
2K2095 Other NJ ACS/HEALTHNET
530507 Other NJ AETNA
223713972 Other NJ UNITED HEALTHCARE
P591243 Other NJ OXFORD
2118788002 Other NJ KEYSTONE
2862905 Medicaid NJ -
223713972 Other NJ CIGNA HEALTHCARE

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

Where does Charles Grubb practice?
The practice location on file with NPPES is in Easton, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Charles Grubb?
The National Provider Identifier (NPI) for Charles Grubb is 1780644831, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-26.