STACIE LYNN MERCER FNP
NPI 1942992656
Nurse Practitioner - Family in Watertown, MA

Q: What is Stacie Mercer's NPI number?

The NPI number for Stacie Mercer is 1942992656. It was assigned to this individual provider in the NPPES registry on May 22, 2023.

Q: What is Stacie Mercer's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: Is Stacie Mercer enrolled in Medicare?

No. Stacie Mercer has opted out of Medicare through December 30, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Q: When was this NPI record last updated?

The NPPES record for Stacie Mercer was last updated on May 1, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 22, 2023Opted out of Medicare · through Dec 30, 2027

63 PLEASANT ST, WATERTOWN, MA 02472(617) 924-6484 Get Directions Write a Review

NPPES record last updated: May 1, 2024. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 1, 2024, May 22, 2023 (2 updates tracked since 2023).

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About Stacie Lynn Mercer Fnp NPPES

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

STACIE LYNN MERCER FNP (NPI 1942992656) is an individual family provider in Watertown, Massachusetts, licensed in Massachusetts (2336279) and active in the NPI registry since May 2023. She has opted out of Medicare through December 30, 2027, is affiliated with Signature Healthcare Brockton Hospital, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1942992656

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameSTACIE LYNN MERCERCredential: FNP

Location Address63 PLEASANT STWatertown, MA 02472-2386

Mailing Address63 Pleasant StWatertown, MA 02472-2386 · (617) 924-6484

Phone(617) 924-6484

Sole ProprietorNo

Medical School CMSOtherGraduated 2022

Enumeration DateMay 22, 2023

Last NPPES UpdateMay 1, 20242 updates tracked since enumeration

NPPES CertifiedMay 1, 2024

✔ NPI 1942992656 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in MA · 2336279

63 PLEASANT ST, Watertown, MA 02472

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Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Stacie Lynn Mercer Fnp has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from December 30, 2025 through December 30, 2027.

Opt-Out Effective DateDecember 30, 2025

Opt-Out In Effect ThroughDecember 30, 2027Opt-out affidavits renew automatically every two years unless cancelled

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.

29 services28 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

26 services25 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Signature Healthcare Brockton Hospital

Acute Care Hospitals · Brockton, MA

2/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number220052

Location680 Center StreetBrockton, MA 02302 · Plymouth County

Emergency services Birthing friendly

Morton Hospital

Acute Care Hospitals · Taunton, MA

1/5 CMS rating

OwnershipProprietary

CMS Certification Number220073

Location88 Washington StreetTaunton, MA 02780 · Bristol County

Emergency services

Good Samaritan Medical Center

Acute Care Hospitals · Brockton, MA

2/5 CMS rating

OwnershipProprietary

CMS Certification Number220111

Location235 North Pearl StreetBrockton, MA 02301 · Plymouth County

Emergency services Birthing friendly

Other Providers at the Same Location NPPES 8

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

KELSEY QUALEY

Physical Therapist