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CHARLES HSU MD
NPI 1386267300
Internal Medicine - Hematology & Oncology in New York, NY

Active since May 26, 2020PECOS EnrolledAccepts Medicare Assignment
530 E 74TH ST, NEW YORK, NY 10021(347) 798-9663 Get Directions Write a Review

NPPES record last updated: November 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 11, 2025, May 26, 2020 (2 updates tracked since 2020).

About Charles Hsu Md NPPES

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

CHARLES HSU MD (NPI 1386267300) is an individual hematology & oncology provider in New York, New York, licensed in New York (321449) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1386267300
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameCHARLES HSUCredential: MD
Location Address530 E 74TH STNew York, NY 10021-3459
Mailing Address530 E 74th StNew York, NY 10021-3459 · (347) 798-9663
Phone(347) 798-9663
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMay 26, 2020
Last NPPES UpdateNovember 11, 20252 updates tracked since enumeration
NPPES CertifiedNovember 11, 2025
✔ NPI 1386267300 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in NY · 321449
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
530 E 74TH ST, New York, NY 10021
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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

Charles Hsu 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 ID1658796727
PECOS Enrollment IDI20260109000912, I20260326003929
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 Reassignments

3

Medicare enrollment records show Charles Hsu reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Memorial Developmental Chemo Group
0.3 mi
Medical Oncology
1275 YORK AVE
New York, NY 10021
  • Reassigned Medicare billing, New York enrollment
  • 259 clinicians in this Medicare group
NPI 1912978487 (646) 227-3813
Msk Monmouth
29 mi
Medical Oncology
480 RED HILL RD
Middletown, NJ 07748
  • Reassigned Medicare billing, New Jersey enrollment
  • 464 clinicians in this Medicare group
NPI 1922459163 (908) 542-3007
Memorial Solid Tumor Group
Internal Medicine
1275 YORK AVE
New York, NY 10021
  • Reassigned Medicare billing, New York enrollment
  • 514 clinicians in this Medicare group
NPI 1699746172 (646) 227-3813

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10021 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
$198.19 typical visit price
range $65.69 – $198.19
Typical copayment $49.54 (range $16.42 – $49.54)
Most-billed visit code 99205
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
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. YANLI LI PHARMD
Pharmacist
530 E 74TH ST
NEW YORK, NY 10021
New York County (347) 798-9663
MS. JOHANNA TAPPEN LCSW
Social Worker (Clinical)
530 E 74TH ST
NEW YORK, NY 10021
New York County (646) 608-3497
ANNA-LENA MEINHARDT MD
Student in an Organized Health Care Education/Training Program
530 E 74TH ST
NEW YORK, NY 10021
New York County (347) 798-9663
ALLEGRA DACOSTA-WALD
Clinical Nurse Specialist (Adult Health)
530 E 74TH ST
NEW YORK, NY 10021
New York County (917) 477-9594
JESSICA STUART ROSS
Internal Medicine (Medical Oncology)
530 E 74TH ST
NEW YORK, NY 10021
New York County (347) 798-9663
DANIELLE CASSEL PA-C
Physician Assistant
530 E 74TH ST
NEW YORK, NY 10021
New York County (212) 639-2000
DR. EFRAT LUTTWAK MD, MPH
Internal Medicine
530 E 74TH ST
NEW YORK, NY 10021
New York County (347) 883-5266
DR. CHRISTINE LIN LIAW PHARM.D
Pharmacist
530 E 74TH ST
NEW YORK, NY 10021
New York County (646) 608-1725

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 Charles Hsu's NPI number?

The NPI number for Charles Hsu is 1386267300. It was assigned to this individual provider in the NPPES registry on May 26, 2020.

Where is Charles Hsu located?

Charles Hsu practices at 530 E 74th St, New York, NY 10021. The listed phone number is (347) 798-9663.

What is Charles Hsu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Charles Hsu enrolled in Medicare?

Yes. Charles 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.

Which organizations bill Medicare for Charles Hsu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charles Hsu reassigns Medicare benefits to 3 organizations: Memorial Developmental Chemo Group (New York, NY), Msk Monmouth (Middletown, NJ) and Memorial Solid Tumor Group (New York, NY). Each 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 Charles Hsu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Charles Hsu was last updated on November 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.