Parkside, Inc.
Parkside, Inc. is a healthcare organization registered as Adult Mental Health Clinic/Center in Tulsa, OK, holding Type 2 (organization) NPI 1356552111 since 2007. The authorized official on file is William Sachau, Exec. Director Admin Svcs..
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1356552111 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Parkside, Inc. |
| Other name | <Unavail> |
| Practice address | 1239 S TRENTON AVE, Tulsa, OK, 74120 |
| Phone | 9185822131 |
| Fax | 9185888822 |
| Enumeration date | 2007-05-24 |
| Last updated in NPPES | 2026-06-05 |
Authorized official
| Name | William Sachau |
|---|---|
| Title | Exec. Director Admin Svcs. |
| Phone | 9185822131 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 261QM0855X | Adolescent and Children Mental Health Clinic/Center | Secondary | 2261 | OK |
| 261QM0850X | Adult Mental Health Clinic/Center | Primary | 2261 | OK |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100738360D | Medicaid | OK | — |
Copy-ready billing details
Provider: Parkside, Inc. NPI: 1356552111 Taxonomy: 261QM0850X (Adult Mental Health Clinic/Center) Address: 1239 S TRENTON AVE, Tulsa, OK, 74120
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1437370772 | Parkside, Inc. | Organization | Psychiatric Hospital | Tulsa, OK |
| 1346461688 | Parkside, Inc. | Organization | Psychiatric Hospital Unit | Tulsa, OK |
| 1194386029 | Deborah Harrington | Individual | Family Nurse Practitioner | Tulsa, OK |
| 1093359036 | Heather Seiger | Individual | Pharmacist | Tulsa, OK |
| 1134750649 | Parkside, Inc. | Organization | Psychiatric Hospital | Tulsa, OK |
| 1134703275 | Derek Bridges | Individual | Case Manager/Care Coordinator | Tulsa, OK |
| 1831867571 | Dyani Palmer | Individual | Case Manager/Care Coordinator | Tulsa, OK |
| 1780340570 | Sheelagh Tallman | Individual | Registered Nurse | Tulsa, OK |
Verify this record
Cross-check NPI 1356552111 against the authoritative CMS record: view Parkside, Inc. 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
Who is the authorized official for Parkside, Inc.?
What is the NPI number for Parkside, Inc.?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-06-05.