Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marissa Ortiz Wittmer, TECH
Other Technician in Winter Park, FL · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1316283583
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Registry record
Entity type Individual (Type 1)
Name Marissa Ortiz Wittmer
Credential TECH
Sex Female
Practice address 5435 Lake Howell Rd, Winter Park, FL, 32792
Phone (407) 677-7272
Fax (407) 677-5298
Enumeration date Dec 17, 2012
Last updated in NPPES Dec 17, 2012
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
Is NPI 1316283583 active?
Yes, as of the latest NPPES snapshot, NPI 1316283583 is active (record last updated 2012-12-17).
How do I verify Marissa Wittmer's NPI record?
Cross-check NPI 1316283583 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Scott Wittmer Other Technician · Winter Park, FL NPI 1053396598 Wittmer Clinic of Chiropratic PA Rehabilitation Chiropractor · Winter Park, FL NPI 1902103625 Florida Neuropathy & Pain Centers Inc Specialist · Winter Park, FL NPI 1912299835 Amy Lerza Other Technician · Winter Park, FL NPI 1558607713 Sandra Vazquez Other Technician · Winter Park, FL NPI 1427394683 Sandra Ruiz Other Technician · Winter Park, FL NPI 1679819676 Anthony Wittmer Chiropractor · Winter Park, FL NPI 1518737204
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-17.