Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Carl Maschauer, O.D.
Optometrist in Christiansted, VI · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831194927
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Registry record
Entity type Individual (Type 1)
Name Dr. Carl Maschauer
Credential O.D.
Sex Male
Practice address 4500 Sunny Isle, Christiansted, VI, 00820
Phone (302) 381-2696
Fax (340) 778-0977
Enumeration date Jun 16, 2005
Last updated in NPPES Jun 13, 2018
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0000025522 | Medicaid | DE | - |
| 0075199000 | Other | DE | AMERIHEALTH |
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 Carl Maschauer practice?
The practice location on file with NPPES is in Christiansted, VI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Carl Maschauer?
The National Provider Identifier (NPI) for Carl Maschauer is 1831194927, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Dante Galiber Cardiovascular Disease Physician · Christiansted, VI NPI 1710928940 St. Croix Eye Group, Inc. Ophthalmology Physician · Christiansted, VI NPI 1528156817 Gemaine Owen Family Medicine Physician · Christiansted, VI NPI 1891819017 Charlotte Henry Registered Dietitian · St Croix, VI NPI 1811018807 St Croix Family Medicine, LLC Primary Care Clinic/Center · Christiansted, VI NPI 1841560059 The Prevention Specialists LLC Registered Dietitian · Christiansted, VI NPI 1851640866 Margaret Nelthropp Registered Nurse · Christiansted, VI NPI 1871958165 Cog Home Health Services LLC Home Health Agency · Christiansted, VI NPI 1811348600
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-13.