Carlos Oscar Del Alcazar, MD
Internal Medicine Physician · Old Bridge, NJ
Carlos Oscar Del Alcazar, MD is an internal medicine physician with a practice address in Old Bridge, New Jersey, and NPI 1255365912, issued on Jul 10, 2006. Check the license (New Jersey 25MA04963300, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Carlos Oscar Del Alcazar
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MA04963300 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 1810 Englishtown RD, Old Bridge, NJ 08857
- Phone
- (732) 416-6900
- Enumerated
- Jul 10, 2006
- Record last updated
- Nov 9, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (732) 416-6823
- Medicaid ID
- 1395009 NJ
- Medicare enrollment
- Enrolled (PECOS I20051005000367); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1982
- 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 1810 Englishtown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Laemmle, MDInternal Medicine Physician1891729539
Verify Carlos Oscar Del Alcazar 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 25MA04963300Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average internal medicine physician in 2024
3,078 Medicare Part D claims for 375 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium363 claims
- Amlodipine Besylate260 claims
- Levothyroxine Sodium170 claims
- Lisinopril158 claims
- Rosuvastatin Calcium142 claims
- Hydrochlorothiazide98 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.
Bills Medicare through one group practice
- Associates IN Internal Medicine Healthcare LLCOld Bridge, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carlos Oscar Del Alcazar among 4,632 internal medicine physician records in New Jersey
Carlos Oscar Del Alcazar, 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
- Graduated1982 · median 2000 among the 3,132 with a school on file
- Record last updated2009 · 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).
27 internal medicine physician records list a practice address in Old Bridge
They are 27 of the 533 NPPES records with a practice address in Old Bridge, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Old Bridge → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sangeeta Agarwal, M.D.Old Bridge, NJ 088571790756062
- Guillermo Bethencourt, M.D.Old Bridge, NJ 088571952321465
- Andrew Gollup, MDOld Bridge, NJ 088571538123799
- Ludmila Ivchenko, MDOld Bridge, NJ 088571720070345
- Rana Jafri, MDOld Bridge, NJ 088571912938747
- Patricia Laemmle, MDOld Bridge, NJ 088571891729539
- Diptika Patel, MDOld Bridge, NJ 088571417949975
- Craig Price, MDOld Bridge, NJ 088571851313845
Common questions
What is Carlos Oscar Del Alcazar, MD's NPI number?
Carlos Oscar Del Alcazar, MD's National Provider Identifier (NPI) is 1255365912, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carlos Oscar Del Alcazar, MD located?
The NPPES record lists a practice address at 1810 Englishtown RD, Old Bridge, NJ, 08857. Phone: (732) 416-6900. Providers update this record themselves, so call before visiting.
How can I verify Carlos Oscar Del Alcazar, MD's license?
NPPES lists New Jersey license number 25MA04963300, 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 Carlos Oscar Del Alcazar, MD prescribe under Medicare Part D?
In 2024, Carlos Oscar Del Alcazar, MD had 3,078 Medicare Part D claims for 375 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.