Mr. Darrell B Simmermaker, MS, PTA
Mr. Darrell B Simmermaker is a Physical Therapy Assistant provider (Physical Therapy Assistant) practicing in Springfield, IL, registered in the NPPES registry with NPI 1639447295 since 2011.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1639447295 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mr. Darrell B Simmermaker |
| Credential | MS, PTA |
| Sex | Male |
| Practice address | 2921 GREENBRIAR DR, SUITE B, Springfield, IL, 62704 |
| Phone | 2175463301 |
| Fax | 2175463302 |
| Enumeration date | 2011-12-09 |
| Last updated in NPPES | 2011-12-09 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 225200000X | Physical Therapy Assistant | Primary | 160.005767 | IL |
Copy-ready billing details
Provider: Darrell Simmermaker, MS, PTA NPI: 1639447295 Taxonomy: 225200000X (Physical Therapy Assistant) Address: 2921 GREENBRIAR DR, SUITE B, Springfield, IL, 62704
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1225024136 | Patricia Reichart | Individual | Nurse Practitioner | Springfield, IL |
| 1245281583 | Psychological Services of Central Illinois, P.C. | Organization | Clinical Psychologist | Springfield, IL |
| 1750332037 | Joanne Moussette | Individual | Clinical Psychologist | Springfield, IL |
| 1548212145 | Richard Dimond | Individual | Clinical Psychologist | Springfield, IL |
| 1841242450 | Keith Buescher | Individual | Clinical Psychologist | Springfield, IL |
| 1124043252 | Craig Backs | Individual | Internal Medicine Physician | Springfield, IL |
| 1629200548 | Bradley Blevins | Individual | Physical Therapy Assistant | Springfield, IL |
| 1235421603 | Craig A Backs MD LLC | Organization | Internal Medicine Physician | Springfield, IL |
Verify this record
Cross-check NPI 1639447295 against the authoritative CMS record: view Mr. Darrell B Simmermaker 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 2011-12-09.