Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John Mark Deboer, O.D.
Optometrist in Demotte, IN · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770566556
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Registry record
Entity type Individual (Type 1)
Name Dr. John Mark Deboer
Credential O.D.
Sex Male
Practice address 609 N Halleck St, Demotte, IN, 46310
Phone (219) 987-3673
Fax (219) 987-3905
Enumeration date Nov 25, 2005
Last updated in NPPES Sep 2, 2010
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 |
|---|---|---|---|
| 200395230 | Medicaid | IN | - |
| K48802 | Other | IL | MEDICARE PTAN |
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
How do I verify John Deboer's NPI record?
Cross-check NPI 1770566556 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1770566556 active?
Yes, as of the latest NPPES snapshot, NPI 1770566556 is active (record last updated 2010-09-02).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-09-02.