SUNNY YEONGSEON HAN
NPI 1710563341
Internal Medicine in Cambridge, MA

Active since March 23, 2021PECOS Enrolled
1493 CAMBRIDGE ST, CAMBRIDGE, MA 02139(617) 665-1000 Get Directions Write a Review

NPPES record last updated: July 12, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 12, 2024, Mar 23, 2021 (2 updates tracked since 2021).

About Sunny Yeongseon Han NPPES

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

SUNNY YEONGSEON HAN (NPI 1710563341) is an individual internal medicine provider in Cambridge, Massachusetts, licensed in Massachusetts (1018951) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1710563341
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameSUNNY YEONGSEON HAN
Location Address1493 CAMBRIDGE STCambridge, MA 02139-1047
Mailing Address1493 Cambridge StCambridge, MA 02139-1047 · (617) 665-1000
Sole ProprietorNo
Enumeration DateMarch 23, 2021
Last NPPES UpdateJuly 12, 20242 updates tracked since enumeration
NPPES CertifiedJuly 12, 2024
✔ NPI 1710563341 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 1018951
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1493 CAMBRIDGE ST, Cambridge, MA 02139

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sunny Yeongseon Han is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Sunny Han reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

General Acute Care Hospital
1493 CAMBRIDGE ST
Cambridge, MA 02139
  • Reassigned Medicare billing, Massachusetts enrollment
  • 719 clinicians in this Medicare group

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

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02139 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
$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.

Speech-Language Pathologist
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Emergency Medicine
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Social Worker (Clinical)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Registered Nurse
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Registered Nurse
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Social Worker (Clinical)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Registered Nurse (Ambulatory Care)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Registered Nurse (Neonatal, Low-Risk)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139

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 Sunny Han's NPI number?

The NPI number for Sunny Han is 1710563341. It was assigned to this individual provider in the NPPES registry on March 23, 2021.

Where is Sunny Han located?

Sunny Han practices at 1493 Cambridge St, Cambridge, MA 02139. The listed phone number is (617) 665-1000.

What is Sunny Han's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Sunny Han enrolled in Medicare?

Yes. Sunny Han is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sunny Han's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sunny Han reassigns Medicare benefits to Cambridge Public Health Commission (Cambridge, 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 Sunny Han's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sunny Han accept?

Health plans from Taro Health list Sunny Han 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.

When was this NPI record last updated?

The NPPES record for Sunny Han was last updated on July 12, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.