About the Practice
This is a practice in Baltimore, Maryland focused on mental health services.
Practice Context in IntroTherapy
- • IntroTherapy lists 891 mental health practices in Baltimore. Mary E. O'Brien, LCPC is one of them.
- • 6,790 practices statewide in Maryland are tracked in our directory.
- • Typical counselor compensation in Maryland: $44,000 – $88,000 (median $56,000). Source: BLS OEWS, state cost-of-labor adjusted.
Data compiled from U.S. state licensing boards, NPI public registry, and verified practice listings. Mental health is a YMYL topic — we prioritize licensed, verified providers only. Methodology & sources · Updated June 2026.
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Providers
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Provider details sourced from NPI Registry
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