Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Carlos Oscar Del Alcazar, MD

Individual provider Internal Medicine Physician · NPI 1255365912

Dr. Carlos Oscar Del Alcazar, MD practises Internal Medicine in Old Bridge, New Jersey. Graduated from Columbia University College of Physicians and Surgeons in 1982, 44 years ago. Practices with Associates in Internal Medicine Healthcare LLC, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New Jersey.

Years since qualifying
44
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
NJ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1810 Englishtown Rd
Old Bridge, NJ 08857-3938 Not confirmed with CMS for 16 years — call before visiting
Phone: (732) 416-6900
Fax: (732) 416-6823
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 25MA04963300 (NJ)

Record details

NPI number1255365912
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 10, 2006
Last updated in NPPESNovember 9, 2009

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 1982 (44 years in practice)
Group practice Associates In Internal Medicine Healthcare Llc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients306
Services billed 845 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Centrastate Medical Center Hospital · Freehold, NJ
  • Raritan Bay Medical Center Hospital · Perth Amboy, NJ
  • Hackensack Meridian Jfk At Home Home health agency · Iselin, NJ
  • Visiting Nurse Association Of Central Jersey Home Care And Hospice Home health agency · Toms River, NJ

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Associates in Internal Medicine Healthcare LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Old Bridge