Tommy Chau

  • Plainview, NY
  • Hospitalist
NPI1780876979PAC ID6800977299
Medicare services, 2024
834
Medicare patients, 2024
235
Part D claims, 2024
198
MIPS score, 2024
93
Hospital affiliations
2
Practice address
888 Old Country Road, Plainview, NY 11803
Practice phone
Call (516) 719-3000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Plainview Hospital

Hospital · Plainview, New York

See all 4 affiliations

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Tommy Chau is a hospitalist in Plainview, New York

Tommy Chau practices at Plainview Hospital in Plainview, New York, part of Northwell Health.

Tommy Chau's NPI, 1780876979, was assigned on August 13, 2007. Tommy Chau graduated from New York Medical College in 2004. Tommy Chau holds New York license 245479.

NPI and contact details
Medicare PAC ID
6800977299
NPI enumeration date
August 13, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(516) 719-3000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
48
Medical school graduation
2004

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Tommy Chau practices at Plainview Hospital in Plainview, New York

Tommy Chau's primary practice is Plainview Hospital, at 888 Old Country Road, Plainview, NY 11803 in Nassau County. The practice phone is (516) 719-3000.

  • Plainview Hospital
    888 Old Country Road, Plainview, NY 11803 · Nassau CountyPhone(516) 719-3000

Source: Dmand AI Affiliation Data

Tommy Chau is affiliated with 2 sites of care and 2 medical groups

Tommy Chau's primary practice is Plainview Hospital in Plainview, New York, part of Northwell Health. Tommy Chau is also affiliated with Mather Hospital. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Tommy Chau to 1 more medical group, named with a free account.

See all 4 affiliations for Tommy Chau

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Tommy Chau's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Tommy Chau practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Plainview HospitalAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Tommy Chau is one of 1,796 hospitalists in New York

Hospitalist is Tommy Chau's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Tommy Chau is licensed in New York.

Specialties and state licenses

  • Hospitalist, New YorkPrimaryLicense 245479 · taxonomy 208M00000X

Hospitalists near Tommy Chau

Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Tommy Chau billed Medicare for 834 services in 2024

CMS data shows 834 Medicare services from Tommy Chau across 3 procedure codes in 2024, for 235 Medicare patients. Medicare paid $70,798 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024834
Medicare patients235
Paid by Medicare$70,798
Procedure codes3

Tommy Chau's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 9362024: 83411%

Tommy Chau compared with the New York median for hospitalists, 2024

  • Tommy Chau
  • New York median
Medicare services
834vs 3882.1 times
Medicare patients
235vs 16344% above
Part D claims
12vs 5578% below

Medians across 1,696 hospitalists in New York with Dmand AI profiles that report each measure.

Tommy Chau's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Tommy Chau

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Tommy Chau treated 235 Medicare patients in 2024, average age 79

CMS counts 235 Medicare patients who saw Tommy Chau in 2024. The largest group is 85 and over, with 83 patients. 75% of them have arthritis, and 75% have high blood pressure. 29% are also on Medicaid. Their average risk score is 2.87, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Tommy Chau's median patient age at 78, with 56% women.

Medicare patients, 2024235
Average age79
Average risk score2.87
Also on Medicaid29%

Tommy Chau's Medicare patients by age, 2024

Tommy Chau's Medicare patients by sex, 2024

  • Women12453%
  • Men11147%

Chronic conditions among Tommy Chau's Medicare patients, 2024

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Ischemic heart disease67%
  5. Chronic kidney disease57%
  6. Diabetes55%
  7. Heart failure49%
  8. Mood disorders46%

Share of Medicare patients with each condition. A patient can have several.

Tommy Chau's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 78

Patient panel by sex, all payers

  • Women56%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Tommy Chau wrote 198 Medicare Part D claims in 2024

In 2024, Tommy Chau wrote 198 Medicare Part D claims for 93 patients. 93% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $435 in total drug cost. In 2023, CMS named 11 claims across 1 drug.

Part D claims, 2024198
Drugs named by CMS1
Total drug cost$435
Part D patients93

Tommy Chau's Part D claims by kind of drug, 2024

  • Generic184 claims93%
  • Brand-name14 claims7%

Tommy Chau's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Tommy Chau's Part D claims, 2024

  • Opioids8%15 of 198 claims
  • Antibiotics27%54 of 198 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 112024: 129%

Drugs named by CMS: 1 in 2024, 1 in 2023.

See all prescribing by Tommy Chau

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Tommy Chau scored 93 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Tommy Chau for performance year 2024, reported through an alternative payment model (APM). Tommy Chau accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Tommy Chau's MIPS scores, performance year 2024

  • 93of 100Final score
  • 79.8of 100Quality
  • 89of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Tommy Chau received $21 in industry payments in 2020

CMS Open Payments shows 1 general payment to Tommy Chau from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $21.

Companies that paid Tommy Chau the most, 2020 to 2020

Share is of all general payments to this clinician.

See all payments to Tommy Chau

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Tommy Chau graduated from New York Medical College

Tommy Chau graduated from New York Medical College in 2004.

  1. Medical schoolNew York Medical College

Source: Dmand AI Professional Profile Data

Sources for Tommy Chau's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Tommy Chau

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Tommy Chau's NPI number?

Tommy Chau's NPI number is 1780876979. It was assigned on August 13, 2007, and it is active in the NPI Registry.

What does Tommy Chau specialize in?

Tommy Chau is a hospitalist in Plainview, New York. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Tommy Chau practice?

Tommy Chau practices at 888 Old Country Road, Plainview, NY 11803. Tommy Chau's primary practice is Plainview Hospital in Plainview, New York, part of Northwell Health. Dmand AI also links Tommy Chau to 1 medical group.

What is Tommy Chau's office phone number?

The practice phone on file for Tommy Chau is (516) 719-3000.

What is Tommy Chau's medical license number?

Tommy Chau holds New York license 245479.

Which hospitals is Tommy Chau affiliated with?

Tommy Chau practices at Plainview Hospital in Plainview, New York. Tommy Chau is also affiliated with Mather Hospital.

What medical group is Tommy Chau part of?

Tommy Chau is linked to Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI links Tommy Chau to 1 more medical group.

Does Tommy Chau accept Medicare?

Yes. CMS data shows Tommy Chau billed Medicare for 834 services in 2024, and Tommy Chau accepts Medicare assignment.

What is Tommy Chau's MIPS score?

Tommy Chau's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Tommy Chau see?

CMS counts 235 Medicare patients who saw Tommy Chau in 2024, with an average age of 79.

Show 5 more questionsShow fewer questions

What services does Tommy Chau bill to Medicare?

In 2024, Tommy Chau's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).

Where did Tommy Chau go to medical school?

Tommy Chau graduated from New York Medical College in 2004.

What drugs does Tommy Chau prescribe most?

In 2024 Medicare Part D data, Tommy Chau's most prescribed drugs by claims were Cefpodoxime Proxetil.

Has Tommy Chau received payments from drug or device companies?

CMS Open Payments shows $21 in general payments to Tommy Chau from 1 company from 2020 to 2020. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Tommy Chau been practicing?

Tommy Chau graduated from medical school in 2004, 22 years ago.

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