Thomas J Eiser, M.D.
Thomas J Eiser is a Orthopaedic Surgery Physician provider (Orthopaedic Surgery) practicing in Duncan, OK, registered in the NPPES registry with NPI 1164584777 since 2006. The credential MD stands for Doctor of Medicine. Practices at Duncan Regional Orthopaedic Associates Inc (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1164584777 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Thomas J Eiser |
| Credential | M.D. |
| Sex | Male |
| Practice address | 2815 W ELK AVE, Duncan, OK, 73533 |
| Phone | 5802523400 |
| Fax | 5802527829 |
| Enumeration date | 2006-12-14 |
| Last updated in NPPES | 2007-07-09 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207X00000X | Orthopaedic Surgery Physician | Primary | 12090 | OK |
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 |
|---|---|---|---|
| 100218160A | Medicaid | OK | — |
Copy-ready billing details
Provider: Thomas Eiser, M.D. NPI: 1164584777 Taxonomy: 207X00000X (Orthopaedic Surgery Physician) Address: 2815 W ELK AVE, Duncan, OK, 73533
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1346232279 | William Beeson | Individual | General Practice Dentistry | Duncan, OK |
| 1366504979 | Duncan Regional Orthopaedic Associates Inc | Organization | Orthopaedic Surgery Physician | Duncan, OK |
| 1699837203 | Paul Powers | Individual | Medical Physician Assistant | Duncan, OK |
| 1407223936 | Lyndal Morgan | Individual | Family Nurse Practitioner | Duncan, OK |
Verify this record
Cross-check NPI 1164584777 against the authoritative CMS record: view Thomas J Eiser 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 2007-07-09.