LOUISA MAHLON FORREST AUD
NPI 1972497766
Audiologist in Boston, MA

Q: What is Louisa Forrest's NPI number?

The NPI number for Louisa Forrest is 1972497766. It was assigned to this individual provider in the NPPES registry on June 5, 2025.

Q: What is Louisa Forrest's specialty?

The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.

Q: When was this NPI record last updated?

The NPPES record for Louisa Forrest was last updated on June 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.

Active since June 05, 2025Accepts Medicare Assignment

243 CHARLES ST, BOSTON, MA 02114(617) 523-7900 Get Directions Write a Review

NPPES record last updated: June 23, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 23, 2025, Jun 5, 2025 (2 updates tracked since 2025).

On this page

About Louisa Mahlon Forrest Aud NPPES

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

LOUISA MAHLON FORREST AUD (NPI 1972497766) is an individual audiologist in Boston, Massachusetts, licensed in Massachusetts (AUD100188) and active in the NPI registry since June 2025. She is affiliated with Massachusetts Eye And Ear Infirmary - and is a graduate of Rush Medical College Of Rush University (2025).

NPPES Registry Identity

NPI1972497766

Entity TypeIndividualFemale

Primary Taxonomy231H00000X

Provider Legal NameLOUISA MAHLON FORRESTCredential: AUD

Location Address243 CHARLES STBoston, MA 02114-3002

Mailing Address243 Charles StBoston, MA 02114-3002

Phone(617) 523-7900

Sole ProprietorNo

Medical School CMSRush Medical College Of Rush UniversityGraduated 2025

Enumeration DateJune 5, 2025

Last NPPES UpdateJune 23, 20252 updates tracked since enumeration

NPPES CertifiedJune 23, 2025

✔ NPI 1972497766 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers

Taxonomy Code231H00000X

License✔ Licensed in MA · AUD100188

Definition

(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders of the auditory, balance and other neural systems. Audiologists provide audiological (aural) rehabilitation to children and adults across the entire age span. Audiologists select, fit and dispense amplification systems such as hearing aids and related devices. (2) An audiologist is a person qualified by a master's degree in audiology, licensed by the state, where applicable, and practicing within the scope of that license. Audiologists evaluate and treat patients with impaired hearing. They plan, direct and conduct rehabilitative programs with audiotry substitutional devises (hearing aids) and other therapy.

243 CHARLES ST, Boston, MA 02114

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.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

Louisa Mahlon Forrest Aud 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 ID8628584802

PECOS Enrollment IDI20250723003258

Medicare Billing Reassignments

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

Massachusetts Eye And Ear Associates, Inc.

Same address

Ophthalmology

243 CHARLES ST
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
478 clinicians in this Medicare group

NPI 1932574332 (617) 523-7900

Massachusetts Eye And Ear Infirmary

Same address

General Acute Care Hospital

243 CHARLES ST
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
54 clinicians in this Medicare group

NPI 1639101751 (617) 573-3089

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

Hospital Affiliations CMS Care Compare

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

Massachusetts Eye And Ear Infirmary -

Acute Care Hospitals · Boston, MA

OwnershipVoluntary non-profit - Private

CMS Certification Number220075

Location243 Charles StreetBoston, MA 02114 · Suffolk County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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

$63.72 typical visit price

range $63.72 – $189.86

Typical copayment $15.93 (range $15.93 – $47.46)

Most-billed visit code 99202

Established Patient

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

Most-billed visit code 99213

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.

CARLA PETERSEN AU.D., CCC-A

Audiologist

243 CHARLES ST, AUDIOLOGY DEPARTMENT
BOSTON, MA 02114

Suffolk County (617) 573-3266

DR. SULEMAN IMRAN KHAN MD

Ophthalmology

243 CHARLES ST
BOSTON, MA 02114

Suffolk County (617) 573-4443

DR. RYAN CARLSON MD PHD

Student in an Organized Health Care Education/Training Program

243 CHARLES ST
BOSTON, MA 02114

Suffolk County (617) 523-7900

MASSACHUSETTS EYE AND EAR INFIRMARY

Eyewear Supplier

243 CHARLES ST
BOSTON, MA 02114

Suffolk County (617) 573-3182

DANIEL ROBERT LEFEBVRE M.D.

Ophthalmology

243 CHARLES ST, 10TH FLOOR -- OPHTHALMIC PLASTIC SURGERY
BOSTON, MA 02114

Suffolk County (617) 523-7900

ELLIOTT D. KOZIN MD

Otolaryngology

243 CHARLES ST
BOSTON, MA 02114

Suffolk County (617) 573-6545

DR. LUCIA K SOMBERG MD, MPH

Emergency Medicine

243 CHARLES ST
BOSTON, MA 02114

Suffolk County (617) 573-3431

MS. JANET ENGLISH HUETTIG LICSW

Social Worker (Clinical)

243 CHARLES ST
BOSTON, MA 02114

Suffolk County (617) 573-3548

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 Louisa Forrest's NPI number?

The NPI number for Louisa Forrest is 1972497766. It was assigned to this individual provider in the NPPES registry on June 5, 2025.

Where is Louisa Forrest located?

Louisa Forrest practices at 243 Charles St, Boston, MA 02114. The listed phone number is (617) 523-7900.

What is Louisa Forrest's specialty?

The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.

Is Louisa Forrest enrolled in Medicare?

Yes. Louisa Forrest 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 Louisa Forrest's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Louisa Forrest reassigns Medicare benefits to 2 organizations: Massachusetts Eye And Ear Associates, Inc. (Boston, MA) and Massachusetts Eye And Ear Infirmary (Boston, 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 Louisa Forrest's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Louisa Forrest accept?

Health plans from Taro Health list Louisa Forrest 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.

Is Louisa Forrest affiliated with any hospitals?

According to CMS data, Louisa Forrest is affiliated with Massachusetts Eye And Ear Infirmary -.

When was this NPI record last updated?

The NPPES record for Louisa Forrest was last updated on June 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.