Stephen M Ritter, MD
Stephen M Ritter is a Orthopaedic Surgery of the Spine Physician provider (Orthopaedic Surgery) practicing in Carmel, IN, registered in the NPPES registry with NPI 1912938721 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1912938721 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Stephen M Ritter |
| Credential | MD |
| Sex | Male |
| Practice address | 10767 ILLINOIS ST STE 3000, Carmel, IN, 46032 |
| Phone | 3178171200 |
| Fax | 3178171220 |
| Enumeration date | 2006-07-06 |
| Last updated in NPPES | 2023-06-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207X00000X | Orthopaedic Surgery Physician | Secondary | 01062442A | IN |
| 207X00000X | Orthopaedic Surgery Physician | Secondary | 35086465 | OH |
| 207XS0117X | Orthopaedic Surgery of the Spine Physician | Primary | 01062442A | IN |
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 |
|---|---|---|---|
| 200887310 | Medicaid | IN | — |
| 2606899 | Medicaid | OH | — |
Copy-ready billing details
Provider: Stephen Ritter, MD NPI: 1912938721 Taxonomy: 207XS0117X (Orthopaedic Surgery of the Spine Physician) Address: 10767 ILLINOIS ST STE 3000, Carmel, IN, 46032
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1518960186 | Joel Boaz | Individual | Neurological Surgery Physician | Carmel, IN |
| 1770585911 | Mark Ritter | Individual | Sports Medicine (Orthopaedic Surgery) Physician | Carmel, IN |
| 1356342489 | Terry Horner | Individual | Neurological Surgery Physician | Carmel, IN |
| 1871550053 | John Hur | Individual | Adult Reconstructive Orthopaedic Surgery Physician | Carmel, IN |
| 1679530851 | Jonathan Smerek | Individual | Orthopaedic Foot and Ankle Surgery Physician | Carmel, IN |
| 1184674186 | Michael Harvey | Individual | Physician Assistant | Carmel, IN |
| 1205889276 | Lance Rettig | Individual | Orthopaedic Hand Surgery Physician | Carmel, IN |
| 1245284967 | Thomas Klootwyk | Individual | Sports Medicine (Orthopaedic Surgery) Physician | Carmel, IN |
Verify this record
Cross-check NPI 1912938721 against the authoritative CMS record: view Stephen M Ritter 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 2023-06-08.