Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nancy J Bartleson, CNP

Adult Health Nurse Practitioner in Chelmsford, MA · enumerated 2005 · practices at Saints Medical Center Walk in.

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

National Provider Identifier

1093796989

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Nancy J Bartleson

Credential CNP

Sex Female

Practice address 85 Parkhurst Rd, Chelmsford, MA, 01824

Phone (978) 458-6868

Fax (978) 458-3735

Enumeration date Nov 8, 2005

Last updated in NPPES Aug 6, 2010

Taxonomy & licenses

363LX0001X Obstetrics & Gynecology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 107611 (MA) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 107611 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
NP1761	Other	-	BCBS

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Nancy Bartleson?

Nancy Bartleson is registered in NPPES with the primary taxonomy of Adult Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Arthur Haffner Family Medicine Physician · Chelmsford, MA NPI 1548245277 Saints Medical Center Walk in Health Service Clinic/Center · Chelmsford, MA NPI 1235237561

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-06.