Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Roger D Phelps, PHD
Psychologist in Waterville, ME · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538243381
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Registry record
Entity type Individual (Type 1)
Name Roger D Phelps
Credential PHD
Sex Male
Practice address 10 Water St, Suite 306, Waterville, ME, 04901
Phone (207) 861-3488
Fax (207) 861-3470
Enumeration date Oct 25, 2006
Last updated in NPPES Nov 9, 2009
Taxonomy & licenses
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 290410099 | Medicaid | ME | - |
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
Where does Roger Phelps practice?
The practice location on file with NPPES is in Waterville, ME. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Roger Phelps?
The National Provider Identifier (NPI) for Roger Phelps is 1538243381, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Healthreach Community Health Centers Federally Qualified Health Center (FQHC) · Waterville, ME NPI 1316910193 Patricia Morini Counselor · Waterville, ME NPI 1932283884 Robert Philbrook Addiction (Substance Use Disorder) Counselor · Waterville, ME NPI 1629152483 Deborah Bachand Addiction (Substance Use Disorder) Counselor · Waterville, ME NPI 1033295985 Russell Brown Clinical Social Worker · Waterville, ME NPI 1245316322 Sean Douglas Clinical Social Worker · Waterville, ME NPI 1881770964 Mary Louisa Barnhart Addiction Psychiatry Physician · Waterville, ME NPI 1811055353 Mainegeneral Health Community/Behavioral Health Agency · Waterville, ME NPI 1932268026
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-09.