Walter S Gilliam, PHD
Psychologist, Clinical Child & Adolescent in New Haven, Connecticut
1588623938- Practice location
- 800 Howard Avenue, Yale Physicians Building, New Haven, CT 06519
- Phone
- 203-785-2140
- Fax
- 203-785-6414
- Last updated
- July 13, 2026
Walter S Gilliam is a Psychologist, Clinical Child & Adolescent based in New Haven, CT. Walter S Gilliam practices in New Haven, CT and has the professional credentials of PHD. The NPI Number for Walter S Gilliam is 1588623938 and holds a License No. 002137 (CT). The current practice location address for Walter S Gilliam is 800 Howard Avenue, Yale Physicians Building, New Haven, CT 06519 and can be reached out via phone at 203-785-2140 and via fax at 203-785-6414.
Provider Profile Details
- NPI Number
- 1588623938
- Provider Name
- Walter S Gilliam
- Credential
- PHD
- Provider Entity Type
- Individual
- Gender
- Male
- Address
- 800 Howard Avenue, Yale Physicians Building, New Haven, CT 06519
- Phone Number
- 203-785-2140
- Fax Number
- 203-785-6414
- Primary Taxonomy
- Psychologist, Clinical Child & Adolescent · 103TC2200X
- Sole Proprietor
- No
- Provider Enumeration Date
- March 22, 2006
- Last Update Date
- July 13, 2026
- NPI Status
- Active
Provider Business Practice Location Address Details
- Address
- 800 Howard Avenue
Yale Physicians Building
New Haven, CT 06519 - City
- New Haven
- State
- Connecticut
- Zip
- 06519
- Phone Number
- 203-785-2140
- Fax Number
- 203-785-6414
Provider Business Mailing Address Details
- Address
- Po Box 9805
300 George Street, 6TH Floor
New Haven, CT 06536-0805 - City
- New Haven
- State
- CT
- Zip
- 06536-0805
- Phone Number
- 203-785-7998
- Fax Number
- 203-785-6414
License Information
- License Number
- 002137
- License State
- CT
- Taxonomy
- Psychologist, Clinical Child & Adolescent · 103TC2200X · Primary
Legacy Identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| No legacy identifiers (Medicaid, Medicare or plan IDs) are on file for this provider. | |||
Other Psychologist, Clinical Child & Adolescent providers near New Haven, CT
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Frequently Asked Questions
What is the NPI number of Walter S Gilliam, PHD?
The NPI number of Walter S Gilliam, PHD is 1588623938. It was assigned on March 22, 2006 and is currently active in the NPPES registry.
What is the specialty of Walter S Gilliam, PHD?
Walter S Gilliam, PHD is registered under the primary taxonomy Psychologist, Clinical Child & Adolescent (code 103TC2200X), licensed in CT under license number 002137.
Where does Walter S Gilliam, PHD practice?
The practice location is 800 Howard Avenue, Yale Physicians Building, New Haven, CT 06519. The office can be reached at 203-785-2140 (phone) or 203-785-6414 (fax).
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). It is used in HIPAA standard transactions.
How do I verify this NPI record?
This record is sourced from the public NPPES NPI Registry maintained by CMS. You can confirm it by searching NPI 1588623938 directly on the NPPES registry website.