MS. KAI-YIN HSU
NPI 1962632208
Nurse Practitioner - Gerontology in Boston, MA

Active since July 21, 2009PECOS EnrolledAccepts Medicare Assignment
800 WASHINGTON ST, BOSTON, MA 02111(617) 636-5400 Get Directions Write a Review

NPPES record last updated: November 7, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Nov 7, 2025, May 30, 2023, Oct 23, 2017 (3 updates tracked since 2017).

About Ms. Kai-yin Hsu NPPES

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

MS. KAI-YIN HSU (NPI 1962632208) is an individual gerontology provider in Boston, Massachusetts, licensed in Massachusetts (RN2277656) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS, is affiliated with Tufts Medical Center, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1962632208
Entity TypeIndividualFemale
Primary Taxonomy363LG0600X
Provider Legal NameMS. KAI-YIN HSU
Location Address800 WASHINGTON STBoston, MA 02111-1552
Mailing Address15 Edgecliff RdWatertown, MA 02472-3544
Sole ProprietorYes
Medical School CMSOtherGraduated 2016
Enumeration DateJuly 21, 2009
Last NPPES UpdateNovember 7, 20253 updates tracked since enumeration
NPPES CertifiedNovember 7, 2025
NPI 1962632208 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse Practitioner · GerontologyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LG0600X
License Licensed in MA · RN2277656
Also ListedAcupuncturistTaxonomy 171100000X
800 WASHINGTON ST, Boston, MA 02111

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted 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

Ms. Kai-yin Hsu 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 ID5496014292
PECOS Enrollment IDI20180124003338
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.

Areas of Expertise CMS Part B claims 2

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.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
83 services75 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.
32 services31 patients

Hospital Affiliations CMS Care Compare

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

Tufts Medical Center

Acute Care Hospitals · Boston, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220116
Location800 Washington StreetBoston, MA 02111 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02111 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.

Internal Medicine (Gastroenterology)
800 WASHINGTON ST, BOX 233
BOSTON, MA 02111
Technician/Technologist (Optician)
800 WASHINGTON ST, BOX 450
BOSTON, MA 02111
Plastic Surgery
800 WASHINGTON ST
BOSTON, MA 02111
Internal Medicine
800 WASHINGTON ST
BOSTON, MA 02111
Internal Medicine (Infectious Disease)
800 WASHINGTON ST
BOSTON, MA 02111
Student in an Organized Health Care Education/Training Program
800 WASHINGTON ST
BOSTON, MA 02111
Psychiatry & Neurology (Psychiatry)
800 WASHINGTON ST
BOSTON, MA 02111
Student in an Organized Health Care Education/Training Program
800 WASHINGTON ST
BOSTON, MA 02111

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 Kai-yin Hsu's NPI number?

The NPI number for Kai-yin Hsu is 1962632208. It was assigned to this individual provider in the NPPES registry on July 21, 2009.

Where is Kai-yin Hsu located?

Kai-yin Hsu practices at 800 Washington St, Boston, MA 02111. The listed phone number is (617) 636-5400.

What is Kai-yin Hsu's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.

Is Kai-yin Hsu enrolled in Medicare?

Yes. Kai-yin Hsu 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 Kai-yin Hsu accept?

Health plans from Anthem Blue Cross and Blue Shield list Kai-yin Hsu 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 Kai-yin Hsu affiliated with any hospitals?

According to CMS data, Kai-yin Hsu is affiliated with Tufts Medical Center.

When was this NPI record last updated?

The NPPES record for Kai-yin Hsu was last updated on November 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.