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

Mh Adelphi Operating, LLC

Organization Assisted Living Facility · NPI 1124526348

Mh Adelphi Operating, LLC is an Assisted Living Facility in Adelphi, Maryland. Registered with an NPI since 2018.

In the registry since
2018
Specialties on file
3
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

3210 Powder Mill Rd
Adelphi, MD 20783-1029
Phone: (301) 937-3939
Fax: (301) 937-8798
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Skilled Nursing Facility (primary) Taxonomy 314000000X
Assisted Living Facility Taxonomy 310400000X
Alzheimer Center (Dementia Center) Taxonomy 311500000X

Record details

NPI number1124526348
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Robert Sweet — Executive Vic President · (240) 595-6064
Other names Hillhaven Assisted Living, Nursing & Rehabilitation Center
NPI enumeratedJanuary 23, 2018
Last updated in NPPESJanuary 23, 2018
Mailing address6931 Arlington Rd, Bethesda, MD 20814-5231

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