Oak Leyden Developmental Services

Oak Leyden Developmental Services is a healthcare organization registered as Speech-Language Pathologist in Oak Park, IL, holding Type 2 (organization) NPI 1033254347 since 2007. The authorized official on file is Melissa Ehmann, Director of Children Services.

✓ Active NPI ✓ Valid NPI checksum

NPI	1033254347
Entity type	Organization (Type 2)
Legal business name	Oak Leyden Developmental Services
Practice address	411 CHICAGO AVE, Oak Park, IL, 60302
Phone	7085241050
Fax	7085242469
Enumeration date	2007-02-21
Last updated in NPPES	2025-01-27

Authorized official

Name	Melissa Ehmann
Title	Director of Children Services
Phone	7085241050

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
1041C0700X	Clinical Social Worker	Secondary	—	—
222Q00000X	Developmental Therapist	Secondary	—	IL
225100000X	Physical Therapist	Secondary	070002012	IL
225100000X	Physical Therapist	Secondary	070004000	IL
225100000X	Physical Therapist	Secondary	070011242	IL
225100000X	Physical Therapist	Secondary	070008117	IL
225X00000X	Occupational Therapist	Secondary	056003098	IL
225X00000X	Occupational Therapist	Secondary	056001573	IL
235Z00000X	Speech-Language Pathologist	Secondary	146008395	IL
235Z00000X	Speech-Language Pathologist	Secondary	146005747	IL
235Z00000X	Speech-Language Pathologist	Secondary	146008122	IL
235Z00000X	Speech-Language Pathologist	Secondary	146008222	IL
235Z00000X	Speech-Language Pathologist	Primary	146003481	IL

Copy-ready billing details

Provider: Oak Leyden Developmental Services
NPI: 1033254347
Taxonomy: 235Z00000X (Speech-Language Pathologist)
Address: 411 CHICAGO AVE, Oak Park, IL, 60302

Providers at this address

NPI	Name	Type	Specialty	Location
1316158702	Christine Spence	Individual	Developmental Therapist	Oak Park, IL
1427269661	Brandi Carson	Individual	Developmental Therapist	Oak Park, IL
1457562662	Chelsea Guillen	Individual	Developmental Therapist	Oak Park, IL
1124221569	Susan Kupperman	Individual	Speech-Language Pathologist	Oak Park, IL
1245434885	Joan Gibbons	Individual	Occupational Therapist	Oak Park, IL
1619172012	Amanda Plancon	Individual	Interpreter	Oak Park, IL
1205033503	Emily Sliwa	Individual	Professional Counselor	Oak Park, IL
1073711552	Julie Cameron	Individual	Speech-Language Pathologist	Oak Park, IL

Verify this record

Cross-check NPI 1033254347 against the authoritative CMS record: view Oak Leyden Developmental Services 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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-01-27. Verify at npiregistry.cms.hhs.gov.

Where is Oak Leyden Developmental Services located?

The practice location on file with NPPES is in Oak Park, IL.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-01-27.