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

Esther S Underdown, CADC

Individual provider Clinical Social Worker · NPI 1073825618

Esther S Underdown, CADC is a Clinical Social Worker in Rockland, Maine. Qualified in 2011, 15 years ago. Practices with Spurwink Services Incorporated, a 84-clinician group and accepts Medicare assignment.

Years since qualifying
15
In the registry since
2010
What do these letters mean?
CADC — Certified Alcohol and Drug Counselor
A certified addiction counsellor.

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Practice location Address checks out

12 Union St
Rockland, ME 04841-2739
Phone: (207) 701-4400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X

Record details

NPI number1073825618
Entity typeIndividual (Type 1)
GenderFemale
Credentials CADC
Sole proprietorNo
NPI enumeratedJuly 12, 2010
Last updated in NPPESSeptember 23, 2025
Certification dateSeptember 23, 2025
Mailing address901 Washington Ave Ste 100, Portland, ME 04103-2842

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Spurwink Services Incorporated — 84 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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