What is Donald Tsay's specialty?

Donald Tsay (NPI 1962586321) is a Medicare-billing provider whose primary specialty is Internal Medicine in Columbia, NJ.

Where does Donald Tsay practice?

Donald Tsay practices in Columbia, NJ, based on the location reported in the CMS Medicare provider datasets for NPI 1962586321.

How much does Medicare pay Donald Tsay?

Donald Tsay (NPI 1962586321) received approximately $94K in total Medicare Part B payments, serving 221 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1962586321

Donald TsayM.D.

Internal MedicineColumbia, NJI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,972

Unique beneficiaries

—

Total services

2,534

Distinct HCPCS

Medicare payment

$91K

Peer benchmark

Total Medicare services vs. 3,616 Internal Medicine providers in NJ — top quintile (cohort median 895).

PRESCRIBING · PART D · 2024

Total Rx claims

3,035

Beneficiaries

—

Total drug cost

$253K

Distinct drugs

Brand share

13.8%

Top prescribed drugs

Atorvastatin Calcium195 claims

Levothyroxine Sodium185 claims

Amlodipine Besylate181 claims

Rosuvastatin Calcium128 claims

Olmesartan Medoxomil124 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$1K

Payment records

By payment type

Food and Beverage$1K

Top paying entities

Food and Beverage$1K

REFERRAL NETWORK

Where Donald Tsay's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ENZO CLINICAL LABS, INC.	95	299
Eugene Cullen Family Practice · Columbia, NJ	24	43
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	12	39
CORIO, FREDERICK	12	19

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events