Alfred B. Leong, MD
Internal Medicine Physician · Brooklyn, NY
Alfred B. Leong, MD is an internal medicine physician with a practice address in Brooklyn, New York, and NPI 1285601963, issued on Mar 2, 2006. Check the license (New York 197629, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Alfred B. Leong
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 197629 NY
Self-reported in NPPES; status is on the state search - Practice location
- 515 Sixth Street, Brooklyn, NY 11215
- Phone
- (718) 246-8600
- Enumerated
- Mar 2, 2006
- Record last updated
- May 3, 2023
- Fax
- (718) 246-8601
- Medicaid ID
- 01582961 NY
- Medicare enrollment
- Enrolled (PECOS I20100617000101); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 515 Sixth Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Allison Segal, NPNurse Practitioner1396451324
- Brian Wong, M.D.Clinical Cardiac Electrophysiology Physician1770718959
Verify Alfred B. Leong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 197629Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% more Medicare Part D claims than the average internal medicine physician in 2024
5,695 Medicare Part D claims for 545 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Atorvastatin Calcium436 claims
- Amlodipine Besylate281 claims
- Losartan Potassium253 claims
- Metformin Hcl201 claims
- Gabapentin185 claims
- Metoprolol Succinate168 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 90.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $249.44
2 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Kings Physician Services PCBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alfred B. Leong among 12,067 internal medicine physician records in New York
Alfred B. Leong, MD is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1981 · median 2002 among the 7,221 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,497 internal medicine physician records list a practice address in Brooklyn
They are 1,497 of the 64,057 NPPES records with a practice address in Brooklyn, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Brooklyn → Internal Medicine Physician nationwide →
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Common questions
What is Alfred B. Leong, MD's NPI number?
Alfred B. Leong, MD's National Provider Identifier (NPI) is 1285601963, issued on Mar 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alfred B. Leong, MD located?
The NPPES record lists a practice address at 515 Sixth Street, Brooklyn, NY, 11215. Phone: (718) 246-8600. Providers update this record themselves, so call before visiting.
How can I verify Alfred B. Leong, MD's license?
NPPES lists New York license number 197629, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alfred B. Leong, MD prescribe under Medicare Part D?
In 2024, Alfred B. Leong, MD had 5,695 Medicare Part D claims for 545 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Alfred B. Leong, MD's MIPS final score?
The 2023 MIPS final score is 90.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.