Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Maria C. Hammill, MD

Organization Psychologist · NPI 1891982963

Maria C. Hammill, MD is a Psychologist in Greenbelt, Maryland. Licensed in Maryland. Registered with an NPI since 2007.

Licensed in
MD
In the registry since
2007

Practice location Address checks out

7474 Greenway Center Dr Ste 730
Greenbelt, MD 20770-3504
Phone: (301) 982-3437
Fax: (301) 934-9321
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence D0046677 (MD)

Record details

NPI number1891982963
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Maria Hammill — Ceo · (301) 982-3437
NPI enumeratedOctober 2, 2007
Last updated in NPPESOctober 2, 2007
Mailing address7474 Greenway Center Dr, Suite 730, Greenbelt, MD 20770-3504

Other providers in Greenbelt