Alexander Korenfeld, MD
NPI 1063428803 · Internal Medicine Physician · Cliffside Park, NJ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Korenfeld, MD is a Internal Medicine Physician provider in Cliffside Park, NJ (NPI 1063428803).
Provider details
- NPI number
- 1063428803
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 63357 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,269 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Chronic Care Management Services for Two Or More Chronic Conditions, First 30 Minutes Provided Personally By Health Care Professional, Per Calendar Month99491 | 969 | $97 |
| Complete Ultrasound Study of Arm and Leg Arteries93923 | 232 | $157 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 185 | $105 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 30 Minutes Provided Personally By Health Care Professional, Per Calendar Month99437 | 178 | $68 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 167 | $146 |
| Telephone Medical Discussion With Physician, 21-30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Phenobarbital | 229 | 53 |
| Levothyroxine Sodium | 116 | 19 |
| Diclofenac Sodium | 111 | 25 |
| Rosuvastatin Calcium | 111 | 23 |
| Metformin Hcl | 81 | 15 |
| Zolpidem Tartrate | 71 | — |
| Icosapent Ethylbrand: Vascepa | 70 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$264 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Alexander Korenfeld's NPI number?
- Alexander Korenfeld's National Provider Identifier (NPI) is 1063428803, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Korenfeld's specialty?
- Alexander Korenfeld is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Korenfeld located?
- Alexander Korenfeld's practice location on file with NPPES is 596 Anderson Ave, Cliffside Park, NJ 07010-1831.
- What is Alexander Korenfeld's phone number?
- The practice phone number listed in the NPPES registry for Alexander Korenfeld is (201) 943-2700.
- Does Alexander Korenfeld accept Medicare?
- Alexander Korenfeld is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Korenfeld's NPI active?
- Yes — Alexander Korenfeld's NPI (1063428803) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.