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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Christine Blake Grabenstatter, PNP

Pediatric Nurse Practitioner in Marlborough, MA · enumerated 2012.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1699011411

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Registry record

Entity type Individual (Type 1)
Name Ms. Christine Blake Grabenstatter
Credential PNP
Sex Female
Practice address 320 Bolton St, Marlborough, MA, 01752
Enumeration date Dec 26, 2012
Last updated in NPPES Dec 11, 2013

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2270151 (MA) Primary

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.

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Frequently asked questions

Where does Christine Grabenstatter practice?
The practice location on file with NPPES is in Marlborough, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Christine Grabenstatter?
The National Provider Identifier (NPI) for Christine Grabenstatter is 1699011411, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-11.