Alexander Korenfeld, MD
Internal Medicine Physician · Cliffside Park, NJ
Alexander Korenfeld, MD is an internal medicine physician with a practice address in Cliffside Park, New Jersey, and NPI 1063428803, issued on Aug 1, 2006. Check the license (New Jersey 63357, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Alexander Korenfeld
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 63357 NJ
204339 NY
Self-reported in NPPES; status is on the state search - Practice location
- 596 Anderson Ave, Cliffside Park, NJ 07010
- Phone
- (201) 943-2700
- Enumerated
- Aug 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (201) 943-2646
- Medicaid ID
- 7101805 NJ
- Medicare enrollment
- Enrolled (PECOS I20050928000017); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Also registered at 596 Anderson Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Yelena Korenfeld, MDInternal Medicine Physician1720094576
Verify Alexander Korenfeld in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 63357Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,243 Medicare Part D claims for 179 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Phenobarbital229 claims
- Levothyroxine Sodium116 claims
- Diclofenac Sodium111 claims
- Rosuvastatin Calcium111 claims
- Metformin Hcl81 claims
- Zolpidem Tartrate71 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): 100 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: $263.96
3 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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
- Renaissance General Medicine PCCliffside Park, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Korenfeld among 4,632 internal medicine physician records in New Jersey
Alexander Korenfeld, MD is one of 4,632 internal medicine physician records with a practice address in New Jersey. 82% 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, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1977 · median 2000 among the 3,132 with a school on file
- Record last updated2007 · 63% 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 Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 internal medicine physician records list a practice address in Cliffside Park
They are 8 of the 249 NPPES records with a practice address in Cliffside Park, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Cliffside Park → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joseph Ardolino, MDCliffside Pk, NJ 070101275759516
- Benjamin Chouake, MDCliffside Park, NJ 070101891804654
- Ashraf FaltasCliffside Park, NJ 070101275635070
- Michelle Graziano, M.D.Cliffside Park, NJ 070101083938963
- Imad Harsouni, MDCliffside Park, NJ 070101659802361
- Yelena Korenfeld, MDCliffside Park, NJ 070101720094576
- Violet Master, M.D.Cliffside Park, NJ 070101609847193
- Richard Righthand, M.D.Cliffside Park, NJ 070101093738031
Common questions
What is Alexander Korenfeld, MD's NPI number?
Alexander Korenfeld, MD's National Provider Identifier (NPI) is 1063428803, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Korenfeld, MD located?
The NPPES record lists a practice address at 596 Anderson Ave, Cliffside Park, NJ, 07010. Phone: (201) 943-2700. Providers update this record themselves, so call before visiting.
How can I verify Alexander Korenfeld, MD's license?
NPPES lists New Jersey license number 63357, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alexander Korenfeld, MD prescribe under Medicare Part D?
In 2024, Alexander Korenfeld, MD had 2,243 Medicare Part D claims for 179 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Alexander Korenfeld, MD's MIPS final score?
The 2023 MIPS final score is 100 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.