Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Michael J Dorenbusch, MD
Surgery Physician in Columbus, IN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1265546725
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Registry record
Entity type Individual (Type 1)
Name Michael J Dorenbusch
Credential MD
Sex Male
Practice address 2325 18th St Ste 220, Columbus, IN, 47201
Phone (812) 376-5640
Fax (812) 376-5641
Enumeration date Aug 19, 2006
Last updated in NPPES Sep 9, 2024
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 200045070A | Medicaid | IN | - |
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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Michael Dorenbusch?
Michael Dorenbusch is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → David Lee Surgery Physician · Columbus, IN NPI 1376657841 Douglas Roese Specialist · Columbus, IN NPI 1699889162 Anita Norris Adult Health Nurse Practitioner · Columbus, IN NPI 1376657858 Frederick Shedd Specialist · Columbus, IN NPI 1700990256 David Thompson Surgery Physician · Columbus, IN NPI 1689788150 Justin Burdick Surgery Physician · Columbus, IN NPI 1467621136 Sylvester Osayi Surgery Physician · Columbus, IN NPI 1790075570 Samantha Grider Family Nurse Practitioner · Columbus, IN NPI 1013303569
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-09.