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

Mary Holmes, BS

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1073666459

Mary Holmes, BS is an Addiction (Substance Use Disorder) Counselor in Chester, Pennsylvania. Registered with an NPI since 2007.

In the registry since
2007
What do these letters mean?
BS — Bachelor of Science
An undergraduate science degree.

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Practice location Address checks out

2600 W 9th St 4th Flr
Chester, PA 19013-2040
Phone: (610) 497-7200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X

Record details

NPI number1073666459
Entity typeIndividual (Type 1)
GenderFemale
Credentials BS
Sole proprietorNo
NPI enumeratedJanuary 19, 2007
Last updated in NPPESJuly 8, 2007
Mailing address1315 Ruby St, Chester, PA 19013-2635

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