Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Kirsten Piotrowski Sobkowich, APRN
Nurse Practitioner in Groton, MA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891431771
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Registry record
Entity type Individual (Type 1)
Name Kirsten Piotrowski Sobkowich
Credential APRN
Sex Female
Practice address 100 Boston Rd Ste E, Groton, MA, 01450
Phone (978) 448-4300
Fax (978) 448-4040
Enumeration date May 12, 2022
Last updated in NPPES Aug 25, 2022
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2368610 (MA) Primary
APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists.
About the APRN credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Kirsten Sobkowich practice?
The practice location on file with NPPES is in Groton, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Kirsten Sobkowich?
The National Provider Identifier (NPI) for Kirsten Sobkowich is 1891431771, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-25.