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DR. CATHY D CHONG M.D., M.P.H.
NPI 1043205974
Otolaryngology in Weymouth, MA

Active since September 16, 2005PECOS EnrolledAccepts Medicare Assignment
825 MAIN ST, WEYMOUTH, MA 02190(781) 337-3424(781) 337-7569 Get Directions Write a Review

NPPES record last updated: March 7, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Cathy D Chong M.d., M.p.h. NPPES

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

DR. CATHY D CHONG M.D., M.P.H. (NPI 1043205974) is an individual otolaryngology provider in Weymouth, Massachusetts, licensed in Massachusetts (159675) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS, is affiliated with Massachusetts Eye And Ear Infirmary -, and is a graduate of Tufts University School Of Medicine (1994).

NPPES Registry Identity

NPI1043205974
Entity TypeIndividualFemale
Primary Taxonomy207Y00000X
Provider Legal NameDR. CATHY D CHONGCredential: M.D., M.P.H.
Location Address825 MAIN STWeymouth, MA 02190-1659
Mailing Address825 Main StWeymouth, MA 02190-1659 · (781) 337-3424 · Fax (781) 337-7569
Phone(781) 337-3424
Fax(781) 337-7569
Sole ProprietorNo
Medical School CMSTufts University School Of MedicineGraduated 1994
Enumeration DateSeptember 16, 2005
Last NPPES UpdateMarch 7, 2008
✔ NPI 1043205974 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in MA · 159675
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.
825 MAIN ST, Weymouth, MA 02190
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Other Identifiers 3

Medicare UPING92902MA
Medicaid3195686MA
Medicare ID-Type UnspecifiedA29555MA

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

Dr. Cathy D Chong M.d., M.p.h. 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 ID3870765894
PECOS Enrollment IDI20111017000120
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 Cathy Chong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Massachusetts Eye And Ear Associates, Inc.
14 mi
Ophthalmology
243 CHARLES ST
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 478 clinicians in this Medicare group
NPI 1932574332 (617) 523-7900

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

Areas of Expertise CMS Part B claims 11

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.

Removal of impacted ear wax 69210
Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.
762 services409 patients
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.
303 services245 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
241 services201 patients
Diagnostic exam of nasal passages using an endoscope 31231
A diagnostic exam of nasal passages using an endoscope is a non-invasive procedure. A small, flexible tube with a light and camera at the end, called an endoscope, is inserted into the nose. This allows the doctor to view the nasal passages and sinuses, helping to identify any issues.
76 services59 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
69 services69 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.
63 services48 patients

Hospital Affiliations CMS Care Compare 2

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

South Shore Hospital

Acute Care Hospitals · South Weymouth, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220100
Location55 Fogg RoadSouth Weymouth, MA 02190 · Norfolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02190 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.

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
4 suppliers12 claims12 services$32.84 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
4 suppliers13 claims13 services$70.01 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
4 suppliers13 claims36 services$27.81 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
6 suppliers11 claims11 services$13.96 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
4 suppliers18 claims104 services$1.89 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
2 suppliers24 claims24 services$28.18 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 6

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

SOUTH SHORE EAR NOSE AND THROAT P.C.
Otolaryngology
825 MAIN ST, SUITE 2A
SOUTH WEYMOUTH, MA 02190
Norfolk County (781) 803-6380
AMEE K DHARIA M.D.
Otolaryngology
825 MAIN ST
WEYMOUTH, MA 02190
Norfolk County (781) 337-3424
SOUTH SUBURBAN EAR, NOSE & THROAT ASSOC INC
Otolaryngology
825 MAIN ST
SOUTH WEYMOUTH, MA 02190
Norfolk County (781) 337-3424
HANI IBRAHIM M.D.
Otolaryngology
825 MAIN ST
WEYMOUTH, MA 02190
Norfolk County (781) 337-3424
ROBIN BRITTANY PAPPAL MD
Otolaryngology
825 MAIN ST
WEYMOUTH, MA 02190
Norfolk County (781) 337-3424
RICHARD S HILL M.D.
Otolaryngology
825 MAIN ST
WEYMOUTH, MA 02190
Norfolk County (781) 803-6380

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 Cathy Chong's NPI number?

The NPI number for Cathy Chong is 1043205974. It was assigned to this individual provider in the NPPES registry on September 16, 2005.

Where is Cathy Chong located?

Cathy Chong practices at 825 Main St, Weymouth, MA 02190. The listed phone number is (781) 337-3424.

What is Cathy Chong's specialty?

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

Is Cathy Chong enrolled in Medicare?

Yes. Cathy Chong 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 organization bills Medicare for Cathy Chong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cathy Chong reassigns Medicare benefits to Massachusetts Eye And Ear Associates, Inc. (Boston, 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 Cathy Chong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Cathy Chong accept?

Health plans from Taro Health list Cathy Chong 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 Cathy Chong affiliated with any hospitals?

According to CMS data, Cathy Chong is affiliated with Massachusetts Eye And Ear Infirmary - and South Shore Hospital.

When was this NPI record last updated?

The NPPES record for Cathy Chong was last updated on March 7, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.