Alexander Ma
- Medicare services, 2024
- 222
- Medicare patients, 2024
- 194
- Part D claims, 2024
- 25
- MIPS score, 2024
- 93
- Hospital affiliations
- 1
- Practice address
- 100 East 77th Street, New York, NY 10075
- Practice phone
- Call (212) 434-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Alexander Ma is an internist in New York, New York
Alexander Ma practices at Lenox Hill Hospital in New York, New York, part of Northwell Health.
Alexander Ma's NPI, 1376004069, was assigned on March 26, 2019. Alexander Ma holds New York license 318070.
- NPI
- 1376004069NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315275906
- NPI enumeration date
- March 26, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 434-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Alexander Ma practices at Lenox Hill Hospital in New York, New York
Alexander Ma's primary practice is Lenox Hill Hospital, at 100 East 77th Street, New York, NY 10075 in New York County. The practice phone is (212) 434-2000.
- Lenox Hill Hospital100 East 77th Street, New York, NY 10075 · New York CountyPhone(212) 434-2000
Source: Dmand AI Affiliation Data
Alexander Ma is affiliated with 1 site of care and 1 medical group
Alexander Ma's primary practice is Lenox Hill Hospital in New York, New York, part of Northwell Health. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Alexander Ma's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Alexander Ma practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lenox Hill Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Alexander Ma is one of 9,643 internists in New York
Internal medicine is Alexander Ma's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Alexander Ma is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Alexander Ma
Counts of internists 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
Alexander Ma billed Medicare for 222 services in 2024
CMS data shows 222 Medicare services from Alexander Ma across 2 procedure codes in 2024, for 194 Medicare patients. Medicare paid $29,911 for them. Every service was in a facility, such as a hospital, rather than an office.
Alexander Ma's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2332024: 2225%
Alexander Ma compared with the New York median for internists, 2024
- Alexander Ma
- New York median
- Medicare services
- 222vs 42648% below
- Medicare patients
- 194vs 15823% above
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Alexander 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Alexander Ma treated 194 Medicare patients in 2024, average age 79
CMS counts 194 Medicare patients who saw Alexander Ma in 2024. The largest group is 85 and over, with 70 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 38% are also on Medicaid. Their average risk score is 2.57, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Alexander Ma's median patient age at 75, with 49% women.
Alexander Ma's Medicare patients by age, 2024
Alexander Ma's Medicare patients by sex, 2024
- Women10755%
- Men8745%
Chronic conditions among Alexander Ma's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Diabetes50%
- Ischemic heart disease48%
- Chronic kidney disease43%
- Atrial fibrillation39%
- Heart failure39%
Share of Medicare patients with each condition. A patient can have several.
Alexander 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 75
Patient panel by sex, all payers
- Women49%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Alexander Ma wrote 25 Medicare Part D claims in 2024
In 2024, Alexander Ma wrote 25 Medicare Part D claims for 13 patients. 92% of them were for generic drugs.
Alexander Ma's Part D claims by kind of drug, 2024
- Generic23 claims92%
- Brand-name and other2 claims8%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Alexander Ma 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 Alexander Ma for performance year 2024, reported through an alternative payment model (APM). Alexander Ma accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Alexander Ma'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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Sources for Alexander 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) |
| Part D prescribing | Medicare Part D Prescribers - 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) |
| 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 Alexander 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 Alexander Ma's NPI number?
Alexander Ma's NPI number is 1376004069. It was assigned on March 26, 2019, and it is active in the NPI Registry.
What does Alexander Ma specialize in?
Alexander Ma is an internist in New York, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Alexander Ma practice?
Alexander Ma practices at 100 East 77th Street, New York, NY 10075. Alexander Ma's primary practice is Lenox Hill Hospital in New York, New York, part of Northwell Health.
What is Alexander Ma's office phone number?
The practice phone on file for Alexander Ma is (212) 434-2000.
What is Alexander Ma's medical license number?
Alexander Ma holds New York license 318070.
Which hospitals is Alexander Ma affiliated with?
Alexander Ma practices at Lenox Hill Hospital in New York, New York.
What medical group is Alexander Ma part of?
Alexander Ma is linked to Northwell Health Physician Partners Cardiology at Great Neck.
Does Alexander Ma accept Medicare?
Yes. CMS data shows Alexander Ma billed Medicare for 222 services in 2024, and Alexander Ma accepts Medicare assignment.
What is Alexander Ma's MIPS score?
Alexander Ma'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 Alexander Ma see?
CMS counts 194 Medicare patients who saw Alexander Ma in 2024, with an average age of 79.
What services does Alexander Ma bill to Medicare?
In 2024, Alexander Ma's most billed Medicare services were hospital inpatient care (99223) and care management and other visits (99497).
How long has Alexander Ma been practicing?
Alexander Ma graduated from medical school in 2019, 7 years ago.
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