David Thomas Harrison, DO
David Thomas Harrison is a Colon & Rectal Surgery Physician provider (Colon & Rectal Surgery) practicing in Indianapolis, IN, registered in the NPPES registry with NPI 1255396255 since 2006. The credential DO stands for Doctor of Osteopathic Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1255396255 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | David Thomas Harrison |
| Credential | DO |
| Sex | Male |
| Practice address | 3660 GUION RD, STE 330, Indianapolis, IN, 46222 |
| Phone | 3179231033 |
| Fax | 3179277426 |
| Enumeration date | 2006-04-20 |
| Last updated in NPPES | 2024-02-07 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208C00000X | Colon & Rectal Surgery Physician | Primary | 02000816 | IN |
DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| P01424321 | Other | IN | RAIL ROAD PTAN |
| 100218030 | Medicaid | IN | — |
| 000000727646 | Other | IN | BCBS |
| 100218030A | Medicaid | IN | — |
Copy-ready billing details
Provider: David Harrison, DO NPI: 1255396255 Taxonomy: 208C00000X (Colon & Rectal Surgery Physician) Address: 3660 GUION RD, STE 330, Indianapolis, IN, 46222
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1437153095 | Charles Walker | Individual | Diagnostic Radiology Physician | Indianapolis, IN |
| 1366446783 | Casimir Starsiak | Individual | Orthopaedic Surgery Physician | Indianapolis, IN |
| 1174523351 | Inna Aroutiounova | Individual | Rheumatology Physician | Indianapolis, IN |
| 1669425039 | Indiana Heart Associates PC | Organization | Cardiovascular Disease Physician | Indianapolis, IN |
| 1881641520 | Todd Midla | Individual | Specialist | Indianapolis, IN |
| 1215072350 | Barbara Internal Medicine, PC | Organization | Internal Medicine Physician | Indianapolis, IN |
| 1912038597 | Benny Ko | Individual | Diagnostic Radiology Physician | Indianapolis, IN |
| 1689705287 | David Williams | Individual | Diagnostic Radiology Physician | Indianapolis, IN |
Verify this record
Cross-check NPI 1255396255 against the authoritative CMS record: view David Thomas Harrison on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-02-07.