Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. John Michael Matkowski, RPH
Pharmacist in Bolton, CT · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720364557
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Registry record
Entity type Individual (Type 1)
Name Mr. John Michael Matkowski
Credential RPH
Sex Male
Practice address 34 Valerie Dr, Bolton, CT, 06043
Phone (860) 966-2006
Enumeration date Oct 25, 2011
Last updated in NPPES Oct 25, 2011
Taxonomy & licenses
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy.
About the RPH 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.
Frequently asked questions
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.
What specialty is John Matkowski?
John Matkowski is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-25.