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ESTHER HANYU TAN NP
NPI 1104335702
Nurse Practitioner - Family in Boston, MA

Active since September 26, 2017PECOS EnrolledAccepts Medicare Assignment
637 WASHINGTON ST, BOSTON, MA 02124(617) 825-9660 Get Directions Write a Review

NPPES record last updated: August 10, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 19, 2026, Aug 10, 2021, Aug 5, 2021 (3 updates tracked since 2021).

About Esther Hanyu Tan Np NPPES

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

ESTHER HANYU TAN NP (NPI 1104335702) is an individual family provider in Boston, Massachusetts, licensed in Massachusetts (RN2346740) and active in the NPI registry since September 2017. She is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1104335702
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameESTHER HANYU TANCredential: NP
Location Address637 WASHINGTON STBoston, MA 02124-3510
Mailing Address637 Washington StBoston, MA 02124-3510
Phone(617) 825-9660
Sole ProprietorYes
Medical School CMSOtherGraduated 2021
Enumeration DateSeptember 26, 2017
Last NPPES UpdateAugust 10, 20213 updates tracked since enumeration
NPPES CertifiedAugust 10, 2021
✔ NPI 1104335702 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MA · RN2346740
637 WASHINGTON ST, Boston, MA 02124
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Other Names 1

Former Name (1)Hanyu Tan

Secondary Practice Location 1

Location 1637 Washington StBoston, MA 02124-3510 · Phone (617) 825-9660

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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

Esther Hanyu Tan Np 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 ID8921496084
PECOS Enrollment IDI20211022002062
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 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.
14 services12 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.
11 services11 patients

Hospital Affiliations CMS Care Compare

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

Boston Medical Center

Acute Care Hospitals · Boston, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220031
Location1 Boston Medical Center PlaceBoston, MA 02118 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02124 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.

DR. AMY MIN HE MD
Family Medicine
637 WASHINGTON ST
BOSTON, MA 02124
Suffolk County (617) 825-9660
MIA ISABEL RODRIGUEZ DDS
Student in an Organized Health Care Education/Training Program
637 WASHINGTON ST
DORCHESTER, MA 02124
Suffolk County (617) 825-9660
DR. MARK CYPRIAN BEAUMONT MD
Family Medicine
637 WASHINGTON ST
DORCHESTER CENTER, MA 02124
Suffolk County (617) 825-9660
SHANNON LYONS RN, FNP
Nurse Practitioner (Family)
637 WASHINGTON ST
BOSTON, MA 02124
Suffolk County (617) 825-9660
MS. MARIE ANDREE PIERRE-VICTOR MSW, LICSW
Social Worker
637 WASHINGTON ST
DORCHESTER CENTER, MA 02124
Suffolk County (617) 822-8211
JENNIFER GARLIN LCSW
Social Worker
637 WASHINGTON ST
DORCHESTER CENTER, MA 02124
Suffolk County (617) 825-9660
MS. DENISE MARIE CROKEN NP
Nurse Practitioner (Family)
637 WASHINGTON ST
DORCHESTER, MA 02124
Suffolk County (617) 825-9660
BOSTON MEDICAL CENTER CORPORATION
Pharmacy (Community/Retail Pharmacy)
637 WASHINGTON ST
DORCHESTER, MA 02124
Suffolk County (617) 638-8150

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 Esther Tan's NPI number?

The NPI number for Esther Tan is 1104335702. It was assigned to this individual provider in the NPPES registry on September 26, 2017. The provider is also known as Hanyu Tan.

Where is Esther Tan located?

Esther Tan practices at 637 Washington St, Boston, MA 02124. The listed phone number is (617) 825-9660.

What is Esther Tan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Esther Tan enrolled in Medicare?

Yes. Esther Tan 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 Esther Tan accept?

Health plans from Anthem Blue Cross and Blue Shield list Esther Tan 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 Esther Tan affiliated with any hospitals?

According to CMS data, Esther Tan is affiliated with Boston Medical Center.

When was this NPI record last updated?

The NPPES record for Esther Tan was last updated on August 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.