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MARISSA LA HAIR DNP, FNP-BC
NPI 1497637102
Nurse Practitioner - Family in Concord, MA

Active since July 23, 2025PECOS Enrolled
330 BAKER AVE, CONCORD, MA 01742(978) 287-9300 Get Directions Write a Review

NPPES record last updated: July 20, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Marissa La Hair Dnp, Fnp-bc NPPES

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

MARISSA LA HAIR DNP, FNP-BC (NPI 1497637102) is an individual family provider in Concord, Massachusetts, licensed in Massachusetts (RN2354513) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2026).

NPPES Registry Identity

NPI1497637102
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARISSA LA HAIRCredential: DNP, FNP-BC
Location Address330 BAKER AVEConcord, MA 01742-2129
Mailing Address330 Baker AveConcord, MA 01742-2129 · (978) 287-9300
Phone(978) 287-9300
Sole ProprietorNo
Medical School CMSOtherGraduated 2026
Enumeration DateJuly 23, 2025
Last NPPES UpdateJuly 20, 2026
NPPES CertifiedJuly 20, 2026
✔ NPI 1497637102 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MA · RN2354513
Also ListedRegistered NurseTaxonomy 163W00000X · License RN2354513 (MA)
330 BAKER AVE, Concord, MA 01742
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marissa La Hair Dnp, Fnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6901364777
PECOS Enrollment IDI20260821002500
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 Reassignment

Medicare enrollment records show Marissa La Hair reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Atrius Health, Inc.
Same address
Internal Medicine
330 BAKER AVENUE
Concord, MA 01742
  • Reassigned Medicare billing, Massachusetts enrollment
  • 1,317 clinicians in this Medicare group
NPI 1265655799 (978) 287-9300

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01742 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

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.

AARON L. FRENZ M.D.
Psychiatry & Neurology (Psychiatry)
330 BAKER AVE
CONCORD, MA 01742
Middlesex County (978) 287-9380
DR. NATASHA THIVYA THIAGALINGAM DO
Pediatrics
330 BAKER AVE
CONCORD, MA 01742
Middlesex County (978) 287-9400
CAITLIN DIONNE CERESIA
Nurse Practitioner (Adult Health)
330 BAKER AVE
CONCORD, MA 01742
Middlesex County (978) 287-9350
PAIGE FAIRBANKS PA-C
Physician Assistant
330 BAKER AVE
CONCORD, MA 01742
Middlesex County (978) 287-9300
VANNARY KHIM MS, RN, FNP-C
Nurse Practitioner (Family)
330 BAKER AVE
CONCORD, MA 01742
Middlesex County (978) 287-9300
NICHOLAS DAVID MCAULEY MD
Internal Medicine
330 BAKER AVE
CONCORD, MA 01742
Middlesex County (978) 287-9350
ATRIUS HEALTH INC. DBA HARVARD VANGUARD MEDICAL ASSOCIATES
Pharmacy (Clinic Pharmacy)
330 BAKER AVE
CONCORD, MA 01742
Middlesex County (978) 287-9300
TAYLOR JULIA LORD CPNP
Nurse Practitioner (Pediatrics)
330 BAKER AVE
CONCORD, MA 01742
Middlesex County (978) 287-9400

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 Marissa La Hair's NPI number?

The NPI number for Marissa La Hair is 1497637102. It was assigned to this individual provider in the NPPES registry on July 23, 2025.

Where is Marissa La Hair located?

Marissa La Hair practices at 330 Baker Ave, Concord, MA 01742. The listed phone number is (978) 287-9300.

What is Marissa La Hair's specialty?

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

Is Marissa La Hair enrolled in Medicare?

Yes. Marissa La Hair is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marissa La Hair's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marissa La Hair reassigns Medicare benefits to Atrius Health, Inc. (Concord, MA). The 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 Marissa La Hair's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Marissa La Hair was last updated on July 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.