CHELSEA E SYLVESTER
NPI 1366877490
Counselor - Mental Health in Haverhill, MA

Active since September 09, 2013PECOS EnrolledAccepts Medicare Assignment
116 SUMMER ST, HAVERHILL, MA 01830(978) 373-7010 Get Directions Write a Review

NPPES record last updated: March 11, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Chelsea E Sylvester NPPES

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

CHELSEA E SYLVESTER (NPI 1366877490) is an individual mental health provider in Haverhill, Massachusetts, licensed in Massachusetts (13210) and active in the NPI registry since September 2013. She is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1366877490
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameCHELSEA E SYLVESTER
Location Address116 SUMMER STHaverhill, MA 01830-6032
Mailing Address800 Turnpike St Ste 201North Andover, MA 01845-6156 · (781) 551-0999
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateSeptember 9, 2013
Last NPPES UpdateMarch 11, 2025
NPPES CertifiedMarch 11, 2025
✔ NPI 1366877490 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in MA · 13210
116 SUMMER ST, Haverhill, MA 01830

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Chelsea E Sylvester 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 ID5294179636
PECOS Enrollment IDI20240214000418
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Chelsea Sylvester reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Community/Behavioral Health
800 DISTRICT AVE STE 520
Burlington, MA 01803
  • Reassigned Medicare billing, Massachusetts enrollment
  • 65 clinicians in this Medicare group
Psychologist
89 ACCESS RD, SUITE 24
Norwood, MA 02062
  • Reassigned Medicare billing, Massachusetts enrollment
  • 349 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

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

Social Worker (Clinical)
116 SUMMER ST
HAVERHILL, MA 01830
Counselor (Mental Health)
116 SUMMER ST
HAVERHILL, MA 01830
Social Worker
116 SUMMER ST
HAVERHILL, MA 01830
Counselor
116 SUMMER ST
HAVERHILL, MA 01830
Counselor
116 SUMMER ST
HAVERHILL, MA 01830
Counselor
116 SUMMER ST
HAVERHILL, MA 01830
Psychiatry & Neurology (Addiction Medicine)
116 SUMMER ST
HAVERHILL, MA 01830
Social Worker (Clinical)
116 SUMMER ST
HAVERHILL, MA 01830

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 Chelsea Sylvester's NPI number?

The NPI number for Chelsea Sylvester is 1366877490. It was assigned to this individual provider in the NPPES registry on September 9, 2013.

Where is Chelsea Sylvester located?

Chelsea Sylvester practices at 116 Summer St, Haverhill, MA 01830. The listed phone number is (978) 373-7010.

What is Chelsea Sylvester's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Chelsea Sylvester enrolled in Medicare?

Yes. Chelsea Sylvester 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.

Which organizations bill Medicare for Chelsea Sylvester's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chelsea Sylvester reassigns Medicare benefits to 2 organizations: Tmin Services, Inc. (Burlington, MA) and Child And Family Psychological Services, PLLC (Norwood, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Chelsea Sylvester's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Chelsea Sylvester accept?

Health plans from Harvard Pilgrim Health Care and Taro Health list Chelsea Sylvester 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 Chelsea Sylvester was last updated on March 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.