JOEL HARRY HASSMAN M.D. NPI 1669433777

NPI Information

  • NPI: 1669433777
  • Provider Name: JOEL HARRY HASSMAN, M.D.
  • Classification: Psychiatry & Neurology - 2084P0800X
  • Specialization: Psychiatry
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 8258 VETERANS HWY STE 13
    MILLERSVILLE, MD
    ZIP 21108
  • Phone: (410) 757-2077

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NPI Details

Joel Harry Hassman, M.D. is a psychiatry psychiatry neurology in Millersville, MD with 37 years of experience. The provider is a Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems. Joel Harry Hassman, M.D. NPI is 1669433777. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

Education
Medical School: UNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduation Year:1989

The provider's business location address is:

8258 VETERANS HWY STE 13
MILLERSVILLE, MD
ZIP 21108-564
Phone: (410) 757-2077

The NPI 1669433777 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, Part A Home Health Agency (HHA), Power Mobility Devices.

The enumeration date for this NPI number is 3/29/2006 and was last updated on 6/26/2025.

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
12084P0800XPsychiatry & NeurologyPsychiatryD0040942MARYLANDYes

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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