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LEAH ELIZABETH SAX MD
NPI 1326508144
Otolaryngology in Boston, MA

Active since March 20, 2019PECOS EnrolledAccepts Medicare Assignment
243 CHARLES ST, BOSTON, MA 02114(617) 573-3557(617) 573-3626 Get Directions Write a Review

NPPES record last updated: September 22, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 5, 2024, Mar 20, 2019 (2 updates tracked since 2019).

About Leah Elizabeth Sax Md NPPES

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

LEAH ELIZABETH SAX MD (NPI 1326508144) is an individual otolaryngology provider in Boston, Massachusetts, licensed in Massachusetts (1024096) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with Cooley Dickinson Hospital Inc,the, and is a graduate of Boston University School Of Medicine (2019).

NPPES Registry Identity

NPI1326508144
Entity TypeIndividualFemale
Primary Taxonomy207Y00000X
Provider Legal NameLEAH ELIZABETH SAXCredential: MD
Location Address243 CHARLES STBoston, MA 02114-3002
Mailing Address243 Charles StBoston, MA 02114-3002 · (617) 573-3557 · Fax (617) 573-3626
Phone(617) 573-3557
Fax(617) 573-3626
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 2019
Enumeration DateMarch 20, 2019
Last NPPES UpdateSeptember 22, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 22, 2025
✔ NPI 1326508144 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
Licenses✔ Licensed in MA · 1024096✔ Licensed in OR · MD219311
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
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 Anthem Blue Cross and Blue Shield, Kaiser Permanente, Moda Health Plan, Inc..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

Leah Elizabeth Sax Md 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 ID9032444245
PECOS Enrollment IDI20250916003981
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.

Hospital Affiliations CMS Care Compare 5

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

Cooley Dickinson Hospital Inc,the

Acute Care Hospitals · Northampton, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220015
Location30 Locust StreetNorthampton, MA 01060 · Hampshire County
Emergency services Birthing friendly

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

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

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220110
Location75 Francis StreetBoston, MA 02115 · Suffolk County
Emergency services Birthing friendly

Ohsu Hospital And Clinics

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number380009
Location3181 SW Sam Jackson Park RoadPortland, OR 97239 · Multnomah County
Emergency services Birthing friendly

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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
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. 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
KYUNG OH DO, MS
Anesthesiology
243 CHARLES ST
BOSTON, MA 02114
Suffolk County (617) 573-3380

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 Leah Sax's NPI number?

The NPI number for Leah Sax is 1326508144. It was assigned to this individual provider in the NPPES registry on March 20, 2019.

Where is Leah Sax located?

Leah Sax practices at 243 Charles St, Boston, MA 02114. The listed phone number is (617) 573-3557.

What is Leah Sax's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Leah Sax enrolled in Medicare?

Yes. Leah Sax 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 Leah Sax accept?

Health plans from Anthem Blue Cross and Blue Shield, Kaiser Permanente and Moda Health Plan, Inc. list Leah Sax 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 Leah Sax affiliated with any hospitals?

According to CMS data, Leah Sax is affiliated with Cooley Dickinson Hospital Inc,the, Massachusetts General Hospital, Massachusetts Eye And Ear Infirmary -, Brigham And Women's Hospital and Ohsu Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for Leah Sax was last updated on September 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.