Cathy Sizer, NP
Nurse Practitioner, Pediatrics in Westford, Massachusetts
1467449512- Practice location
- 133 Littleton RD, Suite 101, Westford, MA 01886-3198
- Phone
- 978-577-0437
- Fax
- 978-692-9904
- Last updated
- July 13, 2026
Cathy Sizer is a Nurse Practitioner, Pediatrics based in Westford, MA. Cathy Sizer practices in Westford, MA and has the professional credentials of NP. The NPI Number for Cathy Sizer is 1467449512 and holds a License No. 153270 (MA). The current practice location address for Cathy Sizer is 133 Littleton RD, Suite 101, Westford, MA 01886-3198 and can be reached out via phone at 978-577-0437 and via fax at 978-692-9904.
Provider Profile Details
- NPI Number
- 1467449512
- Provider Name
- Cathy Sizer
- Credential
- NP
- Provider Entity Type
- Individual
- Gender
- Female
- Address
- 133 Littleton RD, Suite 101, Westford, MA 01886-3198
- Phone Number
- 978-577-0437
- Fax Number
- 978-692-9904
- Primary Taxonomy
- Nurse Practitioner, Pediatrics · 363LP0200X
- Sole Proprietor
- No
- Provider Enumeration Date
- October 4, 2005
- Last Update Date
- July 13, 2026
- NPI Status
- Active
Provider Business Practice Location Address Details
- Address
- 133 Littleton RD
Suite 101
Westford, MA 01886-3198 - City
- Westford
- State
- Massachusetts
- Zip
- 01886-3198
- Phone Number
- 978-577-0437
- Fax Number
- 978-692-9904
Provider Business Mailing Address Details
- Address
- 346 Bacon St
Waltham, MA 02451-7516 - City
- Waltham
- State
- MA
- Zip
- 02451-7516
License Information
- License Number
- 153270
- License State
- MA
- Taxonomy
- Nurse Practitioner, Pediatrics · 363LP0200X · Primary
Legacy Identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| No legacy identifiers (Medicaid, Medicare or plan IDs) are on file for this provider. | |||
Other Nurse Practitioner, Pediatrics providers near Westford, MA
View all Nurse Practitioner, Pediatrics providers in Westford →- Alyssa Paton, NPNurse Practitioner, Pediatrics · NPI 1942666250
- Emily Grossman, CPNPNurse Practitioner, Pediatrics · NPI 1023643624
- Julie B Leonhardt, PNPNurse Practitioner, Pediatrics · NPI 1164545927
- Lindsay A Roy, NPNurse Practitioner, Pediatrics · NPI 1073043022
- Maureen E Dinapoli, NPNurse Practitioner, Pediatrics · NPI 1659467389
- Meghan Corcoran, CPNPNurse Practitioner, Pediatrics · NPI 1730678491
Frequently Asked Questions
What is the NPI number of Cathy Sizer, NP?
The NPI number of Cathy Sizer, NP is 1467449512. It was assigned on October 4, 2005 and is currently active in the NPPES registry.
What is the specialty of Cathy Sizer, NP?
Cathy Sizer, NP is registered under the primary taxonomy Nurse Practitioner, Pediatrics (code 363LP0200X), licensed in MA under license number 153270.
Where does Cathy Sizer, NP practice?
The practice location is 133 Littleton RD, Suite 101, Westford, MA 01886-3198. The office can be reached at 978-577-0437 (phone) or 978-692-9904 (fax).
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). It is used in HIPAA standard transactions.
How do I verify this NPI record?
This record is sourced from the public NPPES NPI Registry maintained by CMS. You can confirm it by searching NPI 1467449512 directly on the NPPES registry website.