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

Individual provider Clinical Social Worker · NPI 1487869301

Ann Marie Sigdestad, LICSW is a Clinical Social Worker in Chelmsford, Massachusetts. Qualified in 1969, 57 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
57
Licensed in
MA
In the registry since
2007
What do these letters mean?
LICSW — Licensed Independent Clinical Social Worker
The title some states use for an independently practising clinical social worker.

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Practice location Address checks out

79 Old Stage Rd
Chelmsford, MA 01824-4623 Not confirmed with CMS for 19 years — call before visiting
Phone: (978) 256-9958
Fax: (978) 256-8230
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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 · Licence 103615 (MA)

Record details

NPI number1487869301
Entity typeIndividual (Type 1)
GenderFemale
Credentials LICSW
Sole proprietorYes
NPI enumeratedMay 14, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1969 (57 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients11
Services billed 372 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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