Dr. Zhi-Wei Ma, MD
- Medicare services, 2024
- 2,496
- Medicare patients, 2024
- 809
- MIPS score, 2024
- 85
- Hospital affiliations
- 5
- Industry payments
- $99
- Practice address
- 1000 Montauk Highway, West Islip, NY 11795
- Practice phone
- Call (631) 376-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ma's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Zhi-Wei Ma is a pathologist in West Islip, New York
Dr. Ma practices at Good Samaritan University Hospital in West Islip, New York, part of Diocese of Rockville Centre.
Dr. Ma's NPI, 1235121799, was assigned on August 19, 2005. Dr. Ma graduated from Shanghai Medical University in 1984. Dr. Ma holds New York license 210345.
- NPI
- 1235121799NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991730491
- NPI enumeration date
- August 19, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 376-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Zhi-Wei Ma practices at Good Samaritan University Hospital in West Islip, New York
Dr. Ma's primary practice is Good Samaritan University Hospital, at 1000 Montauk Highway, West Islip, NY 11795 in Suffolk County. The practice phone is (631) 376-3000.
- Good Samaritan University Hospital1000 Montauk Highway, West Islip, NY 11795 · Suffolk CountyPhone(631) 376-3000
Source: Dmand AI Affiliation Data
Dr. Zhi-Wei Ma is affiliated with 5 sites of care and 1 medical group
Dr. Ma's primary practice is Good Samaritan University Hospital in West Islip, New York, part of Diocese of Rockville Centre. Dr. Ma is also affiliated with St. Francis Hospital & Heart Center. The medical group on file is Pathology & Laboratory Consultants of Long Island. Dmand AI also links Dr. Ma to 3 more hospitals, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Zhi-Wei Ma's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ma practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Good Samaritan University Hospital | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Zhi-Wei Ma is one of 722 pathologists in New York
Anatomic pathology and clinical pathology is Dr. Ma's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Ma is licensed in New York.
Specialties and state licenses
- Anatomic pathology and clinical pathology, New YorkPrimary
Pathologists near Dr. Ma
Counts of pathologists 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
Dr. Zhi-Wei Ma billed Medicare for 2,496 services in 2024
CMS data shows 2,496 Medicare services from Dr. Ma across 17 procedure codes in 2024, for 809 Medicare patients. Medicare paid $79,861 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ma's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 2,3472024: 2,4966%
Dr. Ma compared with the New York median for pathologists, 2024
- Dr. Ma
- New York median
- Medicare services
- 2,496vs 1,0222.4 times
- Medicare patients
- 809vs 3652.2 times
Medians across 735 pathologists in New York with Dmand AI profiles that report each measure.
Dr. Ma'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ma and other pathologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Zhi-Wei Ma treated 809 Medicare patients in 2024, average age 75
CMS counts 809 Medicare patients who saw Dr. Ma in 2024. The largest group is 65 to 74, with 329 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.66, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Ma's median patient age at 60, with 67% women.
Dr. Ma's Medicare patients by age, 2024
Dr. Ma's Medicare patients by sex, 2024
- Women45156%
- Men35844%
Chronic conditions among Dr. Ma's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Ischemic heart disease56%
- Diabetes45%
- Chronic kidney disease36%
- Anxiety31%
- Atrial fibrillation31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ma's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women67%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Zhi-Wei Ma scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Ma for performance year 2024, reported as part of a group. Dr. Ma accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ma's MIPS scores, performance year 2024
- 85of 100Final score
- 80of 100Quality
- 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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Dr. Zhi-Wei Ma received $99 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Ma from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $99.
Companies that paid Dr. Ma the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Zhi-Wei Ma graduated from Shanghai Medical University
Dr. Ma graduated from Shanghai Medical University in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Zhi-Wei Ma's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Zhi-Wei Ma
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Zhi-Wei Ma's NPI number?
Dr. Zhi-Wei Ma's NPI number is 1235121799. It was assigned on August 19, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Zhi-Wei Ma?
Dr. Zhi-Wei Ma is a pathologist in West Islip, New York. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Zhi-Wei Ma practice?
Dr. Ma practices at 1000 Montauk Highway, West Islip, NY 11795. Dr. Ma's primary practice is Good Samaritan University Hospital in West Islip, New York, part of Diocese of Rockville Centre. Dmand AI also links Dr. Ma to 3 hospitals.
What is Dr. Zhi-Wei Ma's office phone number?
The practice phone on file for Dr. Ma is (631) 376-3000.
What is Dr. Zhi-Wei Ma's medical license number?
Dr. Ma holds New York license 210345.
Which hospitals is Dr. Zhi-Wei Ma affiliated with?
Dr. Ma practices at Good Samaritan University Hospital in West Islip, New York. Dr. Ma is also affiliated with St. Francis Hospital & Heart Center. Dmand AI links Dr. Ma to 3 more hospitals.
What medical group is Dr. Zhi-Wei Ma part of?
Dr. Ma is linked to Pathology & Laboratory Consultants of Long Island.
Does Dr. Zhi-Wei Ma accept Medicare?
Yes. CMS data shows Dr. Ma billed Medicare for 2,496 services in 2024, and Dr. Ma accepts Medicare assignment.
What is Dr. Zhi-Wei Ma's MIPS score?
Dr. Ma's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. Zhi-Wei Ma see?
CMS counts 809 Medicare patients who saw Dr. Ma in 2024, with an average age of 75.
Show 4 more questionsShow fewer questions
What services does Dr. Zhi-Wei Ma bill to Medicare?
In 2024, Dr. Ma's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88342).
Where did Dr. Zhi-Wei Ma go to medical school?
Dr. Ma graduated from Shanghai Medical University in 1984.
Has Dr. Zhi-Wei Ma received payments from drug or device companies?
CMS Open Payments shows $99 in general payments to Dr. Ma from 1 company from 2016 to 2016. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Zhi-Wei Ma been practicing?
Dr. Ma graduated from medical school in 1984, 42 years ago.
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