1. Home
  2. Directory
  3. Massachusetts
  4. Westborough
  5. Clinical Nurse Specialist
  6. NPI Profile

MS. KAREN G. ANDERSON APRN
NPI 1376589713
Clinical Nurse Specialist - Psychiatric/Mental Health, Adult in Westborough, MA

Active since June 22, 2006PECOS EnrolledAccepts Medicare Assignment
45 LYMAN ST, SUITE 19, WESTBOROUGH, MA 01581(508) 366-2271(508) 366-5948 Get Directions Write a Review

NPPES record last updated: September 29, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Ms. Karen G. Anderson Aprn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. KAREN G. ANDERSON APRN (NPI 1376589713) is an individual psychiatric/mental health, adult provider in Westborough, Massachusetts, licensed in Massachusetts (177047) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1991).

NPPES Registry Identity

NPI1376589713
Entity TypeIndividualFemale
Primary Taxonomy364SP0809X
Provider Legal NameMS. KAREN G. ANDERSONCredential: APRN
Location Address45 LYMAN ST, SUITE 19Westborough, MA 01581-2628
Mailing Address56a Warren StWestborough, MA 01581-2205 · (508) 366-2271 · Fax (508) 366-5948
Phone(508) 366-2271
Fax(508) 366-5948
Sole ProprietorYes
Medical School CMSOtherGraduated 1991
Enumeration DateJune 22, 2006
Last NPPES UpdateSeptember 29, 2025
NPPES CertifiedSeptember 29, 2025
✔ NPI 1376589713 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinical Nurse Specialist · Psychiatric/Mental Health, AdultPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code364SP0809X
License✔ Licensed in MA · 177047
Also ListedClinical Nurse Specialist · Psychiatric/Mental Health, Child & AdolescentTaxonomy 364SP0807X · License 177047 (MA)
45 LYMAN ST, Westborough, MA 01581
Open in Google Maps ↗

Other Names 1

Professional Name (2)Ms. Karen A. Gardner Aprn

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Karen G. Anderson Aprn is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3072559491
PECOS Enrollment IDI20050707000105
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
171 services36 patients
Psychotherapy with evaluation and management visit, 30 minutes 90833
Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.
151 services34 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01581 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Patient Reviews User submitted

Reviews are submitted by site visitors and approved by a human moderator before publication.

Review by Alana ***** July 13, 2024

5/5
I have seen Karen for nearly 15 years. She has spent countless hours understanding my mindset and helping me navigate new and changed medications over the years. She has coached me through some of the most painful moments in my life, working with me to overcome agoraphobia and a manic state when I first met her through divorce, remarriage, and two pregnancies with PPD. She saved me more than once.
Provider 5/5 Office Staff 5/5
Visited this provider? Share your experience.

Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JAMES D. KARADIMOS D.P.M.
Podiatrist
45 LYMAN ST, SUITE 10
WESTBOROUGH, MA 01581
Worcester County (508) 836-0200
MARGARET PLUMMER COOK PSY.D.
Psychologist (Clinical Child & Adolescent)
45 LYMAN ST, SUITE 21
WESTBOROUGH, MA 01581
Worcester County (508) 795-3447
AGENTS OF CHANGE COUNSELING, LLC
Counselor
45 LYMAN ST, SUITE 200
WESTBOROUGH, MA 01581
Worcester County (508) 366-2300
TAMARA A ALLEN LIC. AC.
Acupuncturist
45 LYMAN ST, INTEGRATIVE ACUPUNCTURE, SUITE 13
WESTBOROUGH, MA 01581
Worcester County (508) 366-1795
WESTBOROUGH PODIATRY PLLC
Podiatrist
45 LYMAN ST, SUITE 10
WESTBOROUGH, MA 01581
Worcester County (508) 836-0200
STEVEN I BENYAS M.D.
Psychiatry & Neurology (Child & Adolescent Psychiatry)
45 LYMAN ST, SUITE 19
WESTBOROUGH, MA 01581
Worcester County (617) 792-4879
GREATER BOSTON PSYCHIATRY, P.C.
Psychiatry & Neurology (Child & Adolescent Psychiatry)
45 LYMAN ST, SUITE 19
WESTBOROUGH, MA 01581
Worcester County (617) 792-4879
MRS. KAROLINA A. LABOISSONNIERE D.C
Chiropractor
45 LYMAN ST, SUITE 22
WESTBOROUGH, MA 01581
Worcester County (508) 339-4091

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Anderson's NPI number?

The NPI number for Karen Anderson is 1376589713. It was assigned to this individual provider in the NPPES registry on June 22, 2006. The provider is also known as Ms. Karen A. Gardner Aprn.

Where is Karen Anderson located?

Karen Anderson practices at 45 Lyman St Suite 19, Westborough, MA 01581. The listed phone number is (508) 366-2271.

What is Karen Anderson's specialty?

The primary specialty registered for this NPI is Clinical Nurse Specialist, specializing in Psychiatric/Mental Health, Adult, with taxonomy code 364SP0809X.

Is Karen Anderson enrolled in Medicare?

Yes. Karen Anderson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Karen Anderson accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Karen Anderson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Karen Anderson was last updated on September 29, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.