Hastings, Mark E
Leesburg, VA Doing business as Mark E. Hastings, Ph.d.
- UEI
- G1W5JCCJ4Y55
- CAGE
- 7TPA0
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Sole Proprietorship
- NAICS codes registered in SAM.gov
- SAM.gov registration date
- Physical address
- 409 Lawford Dr SW, Leesburg, VA 20175, USA
- Website
- markhastingsphd.com
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Expert services | US Attorney's Offices | $7,250 | |
| Expert witness services | US Attorney's Offices | $11,420 | |
| Expert services | US Attorney's Offices | $6,250 | |
| Fpds report submission | US Attorney's Offices | $9,292 | |
| Expert witness services. | US Attorney's Offices | $1,750 |
About Hastings, Mark E
Mark E. Hastings, Ph.D., operating as a sole proprietorship under UEI G1W5JCCJ4Y55, is a forensic psychology expert who provides specialized expert witness and consulting services to the federal government. Registered in SAM.gov since March 2017, Dr. Hastings has established himself as a trusted consultant for the U.S. Department of Justice, delivering high-level professional services in the legal and forensic domains. His business focuses exclusively on providing expert evaluations, reports, and courtroom testimony related to complex legal matters requiring specialized psychological expertise.
Dr. Hastings has received nine federal contract awards, all from the U.S. Attorney's Offices within the Department of Justice, with a combined ceiling value of approximately $82,408.36. These awards are uniformly structured as non-competitive time-and-materials purchase orders without set-aside designations, reflecting the specialized and technical nature of his services that are not amenable to competitive procurement. The contracts, awarded between June 2021 and October 2025, consistently focus on expert services related to the civil commitment of sexually dangerous persons under 18 U.S.C. § 4248, with Dr. Hastings' deliverables including case evaluations, written forensic reports, consultation with Assistant U.S. Attorneys, and expert testimony in legal proceedings. Individual contract values have ranged from $1,750 to $27,250, with his most recent contract awarded in October 2025 for $27,250 with a completion date of October 28, 2027. The continuity and repeat nature of these contract awards across multiple years demonstrates the U.S. Attorney's Offices' reliance on Dr. Hastings' expertise and consistent performance in supporting federal prosecutorial efforts in specialized forensic psychology matters.
Quick answers
What is Hastings, Mark E's UEI?
Hastings, Mark E's Unique Entity ID (UEI) in SAM.gov is G1W5JCCJ4Y55.
What is Hastings, Mark E's CAGE code?
Hastings, Mark E's CAGE code is 7TPA0.
What is Hastings, Mark E's primary NAICS code?
Hastings, Mark E's primary NAICS code is 621330 (Offices of Mental Health Practitioners (except Physicians)).
Where is Hastings, Mark E located?
Hastings, Mark E's physical address in SAM.gov is 409 Lawford Dr SW, Leesburg, VA 20175, USA.
Is Hastings, Mark E registered in SAM.gov?
Yes. Hastings, Mark E's SAM.gov registration is active through January 1, 2027.
What is Hastings, Mark E's most recent federal award?
Hastings, Mark E's most recent federal contract award is Expert services (15JA5626P00000002), from US Attorney's Offices, on October 29, 2025.
On GovTribe
See Hastings, Mark E's full federal record
- Federal contract awards
- Funding analysis by agency, NAICS and set-aside
- Similar vendors