Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Ryan M Witterschein
Behavior Analyst in Manchester, NH · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1932606969
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Registry record
Entity type Individual (Type 1)
Name Mr. Ryan M Witterschein
Sex Male
Practice address 250 Commercial St Ste 4021, Manchester, NH, 03101
Phone (603) 263-9628
Fax (603) 263-9628
Enumeration date Apr 6, 2018
Last updated in NPPES Dec 15, 2021
Taxonomy & licenses
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 Ryan Witterschein practice?
The practice location on file with NPPES is in Manchester, NH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ryan Witterschein?
The National Provider Identifier (NPI) for Ryan Witterschein is 1932606969, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → A.B.A Behavioral Consulting, LLC Behavior Analyst · Manchester, NH NPI 1194303321 Katelyn Freeman Behavior Analyst · Manchester, NH NPI 1487229605 Colleen Allen Behavior Analyst · Manchester, NH NPI 1053983320 Megan Digiovanni Behavior Analyst · Manchester, NH NPI 1306571963 Kathryn Lyons Behavior Analyst · Manchester, NH NPI 1518727965 Elara Nh 1, LLC Home Health Agency · Manchester, NH NPI 1508748377
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-15.