Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Sheila Marcellus, PMHNP-BC

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1043736523

Mrs. Sheila Marcellus, PMHNP-BC is a Certified Clinical Nurse Specialist (Cns) in Braintree, Massachusetts. Qualified in 2018, 8 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
8
Licensed in
MA
In the registry since
2017
Specialties on file
2
What do these letters mean?
PMHNP-BC — Psychiatric-Mental Health Nurse Practitioner, Board Certified
A board-certified psychiatric nurse practitioner.

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Practice location Address checks out

150 Grossman Dr Ste 205
Braintree, MA 02184-4947
Phone: (781) 285-5767
Fax: (781) 207-9658
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 237861 (MA)
Behavior Analyst Taxonomy 103K00000X

Record details

NPI number1043736523
Entity typeIndividual (Type 1)
GenderFemale
Credentials PMHNP-BC
Sole proprietorYes
NPI enumeratedAugust 16, 2017
Last updated in NPPESSeptember 12, 2025
Certification dateSeptember 12, 2025

Medicare enrollment

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

Medicare specialtyCERTIFIED CLINICAL NURSE SPECIALIST (CNS)
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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