DR. GARY STEVEN AUMILLER PH.D. NPI 1144490731

NPI Information

NPI: 1144490731
Provider Name: DR. GARY STEVEN AUMILLER, PH.D.
Classification: Psychologist - 103TC0700X
Specialization: Clinical
Entity Type: Individual
PECOS Registration: Yes
Address: 27 ROWLAND WAY
GEORGETOWN, DE
ZIP 19947
Phone: (631) 624-4916

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NPI Details

DR. Gary Steven Aumiller, PH.D. is a clinical psychologist in Georgetown, DE with 43 years of experience. The provider is a psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems. DR. Gary Steven Aumiller, PH.D. NPI is 1144490731. The provider is registered as an individual entity type and is a multi-specialty group.

The NPPES NPI record indicates the provider is a male.

The provider's business location address is:

27 ROWLAND WAY
GEORGETOWN, DE
ZIP 19947-812
Phone: (631) 624-4916
Fax: (631) 731-2310

The NPI 1144490731 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Part B (Clinical Laboratory and Imaging), Durable Medical Equipment.

The following top HCPCS codes were publicly reported for this provider under the Medicare program for the year 2016. The reported codes are based on the top codes for each available Medicare specialty, excluding evaluation and management codes.

Psychotherapy, 45 minutes (HCPCS:90834)

The enumeration date for this NPI number is 3/10/2008 and was last updated on 1/27/2026.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No.	Taxonomy Code	Taxonomy Clasification	Taxonomy Specialization	License Number	License State	Primary
1	103TF0200X	Psychologist	Forensic	8771-1	NEW YORK	No
2	103TC0700X	Psychologist	Clinical	8117-1	NEW YORK	Yes
3	103TC0700X	Psychologist	Clinical	B1-0011453	DELAWARE	No
4	103G00000X	Clinical Neuropsychologist		B1-0011453	DELAWARE	No
5	103TB0200X	Psychologist	Cognitive & Behavioral	B1-0011453	DELAWARE	No
6	103T00000X	Psychologist		B1-0011453	DELAWARE	No

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

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