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

Michael Gratkowski, RN

Individual provider Psychiatric/Mental Health Registered Nurse · NPI 1346609013

Michael Gratkowski, RN is a Psychiatric/Mental Health Registered Nurse in Manchester, New Hampshire. Licensed in New Hampshire. Registered with an NPI since 2016.

Licensed in
NH
In the registry since
2016
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

1555 Elm St
Manchester, NH 03101-1203
Phone: (603) 668-4111
Fax: (603) 628-7757
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Registered Nurse (primary) Taxonomy 163WP0808X · Licence 073065-21 (NH)

Record details

NPI number1346609013
Entity typeIndividual (Type 1)
GenderMale
Credentials RN
Sole proprietorNo
NPI enumeratedFebruary 23, 2016
Last updated in NPPESFebruary 23, 2016
Mailing address401 Cypress St, Manchester, NH 03103-3628

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