GARY STEVEN AUMILLER, Ph.D. — NPI 1144490731 (Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist, Clinical in GEORGETOWN, DE)

CMS-1500 Box 24J / 33a • NPI

1144490731

Type 1 Individual Rendering/Ordering

HIPAA NUCC Taxonomy • CMS Code

103TC0700X (CMS 62)

Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist, Clinical

Box 32 Service Location & ZIP+4

27 ROWLAND WAY, GEORGETOWN, DE, 19947-3812

✓ 9-Digit EDI 837 ZIP+4 (19947-3812)

Practice Phone & Referral Fax

(631) 624-4916

Fax: (631) 731-2310

✓ HHS OIG LEIE Sanction Screening — VERIFIED CLEAR: NPI 1144490731 (GARY STEVEN AUMILLER, Ph.D.) has 0 active federal exclusions across all 84,224 HHS OIG LEIE sanction records (Database Verified: 2026-11-11).

CMS Medicare Order & Referring PECOS Eligibility

This practitioner does not currently appear in the CMS individual Order & Referring PECOS file (may practice in pediatrics, commercial-only networks, or hospital-employed settings).

Official CMS NPPES Credential & Practice Profile

10-Digit NPI Number	`1144490731` (NPI-1 Individual Practitioner)
Provider / Legal Name	GARY STEVEN AUMILLER, Ph.D.
Plain-English Specialty	Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist, Clinical NUCC Code: `103TC0700X` (Psychologist, Clinical)
Certifying / Licensing Body	State Medical / Healthcare Licensing Board & National Specialty Board
Practice Location Address	27 ROWLAND WAY, GEORGETOWN, DE, 19947-3812
Practice Telephone / Fax	Tel: (631) 624-4916 \| Fax: (631) 731-2310
Administrative Mailing Address	27 ROWLAND WAY, GEORGETOWN, DE, 19947-3812
Enumeration & Last Sync	Enumerated: 2008-03-10 \| CMS Record Updated: 2026-01-27

Clinic Location, Accessibility & Directions

📍 Practice Location & Patient Access

27 ROWLAND WAY, GEORGETOWN, DE, 19947-3812

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Plain-English Taxonomy & CMS Crosswalk (103TC0700X)

What Does Taxonomy Code 103TC0700X Mean?

In the HIPAA National Uniform Claim Committee (NUCC) classification, code 103TC0700X translates to:
"Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist, Clinical"

CMS-1500 Medicare Specialty Crosswalk: CMS Code 62 (Psychologist, Clinical) • CMS Code 68 (Psychologist, Clinical)
Certifying / Accrediting Authority: State Medical / Healthcare Licensing Board & National Specialty Board
Clinical Scope: Consult a verified Psychologist, Clinical for specialized diagnostic evaluation, treatment planning, and continuity of care.

Specialty Clinical Procedures & Therapeutic Classes

Standard Scope of Care (GARY STEVEN AUMILLER, Ph.D.)

Typical CPT / Diagnostic Procedures:

Comprehensive Outpatient & Inpatient Clinical Evaluation (CPT 99202–99215)
Diagnostic Workup, Laboratory Ordering & Evidence-Based Care Coordination
Preventive Screening, Patient Counseling & Multidisciplinary Referral

Common Therapeutic Classes:

Evidence-Based Specialty Pharmacotherapy & Preventive Regimens (CMS Part D Standard)

All Registered NUCC Taxonomies & State Licenses

Taxonomy Code & Plain-English Description	State License & Primary Status
`103TF0200X` — Psychologist, Forensic Plain English: Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist, Forensic	State: NY \| License: `8771-1` \| Primary: Secondary
`103TC0700X` — Psychologist, Clinical Plain English: Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist, Clinical	State: NY \| License: `8117-1` \| Primary: Yes (Primary)
`103TC0700X` — Psychologist, Clinical Plain English: Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist, Clinical	State: DE \| License: `B1-0011453` \| Primary: Secondary
`103G00000X` — Clinical Neuropsychologist Plain English: Licensed & Credentialed Clinical Neuropsychologist	State: DE \| License: `B1-0011453` \| Primary: Secondary
`103TB0200X` — Psychologist, Cognitive & Behavioral Plain English: Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist, Cognitive & Behavioral	State: DE \| License: `B1-0011453` \| Primary: Secondary
`103T00000X` — Psychologist Plain English: Licensed & Credentialed Behavioral Health & Social Service Providers — Psychologist	State: DE \| License: `B1-0011453` \| Primary: Secondary

Medical Billing, RCM & Hospital Credentialing Teams:

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GARY STEVEN AUMILLER, Ph.D. (NPI #1144490731)