Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Joseph Defrank Castro, MD

Individual provider Internal Medicine Physician · NPI 1801095864

Joseph Defrank Castro, MD is an Internal Medicine in Newark, New Jersey. Qualified in 2000, 26 years ago. Practices with Internal Medicine of Morris County LLC, a 73-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New Jersey and New York.

Years since qualifying
26
Licensed in
NJ, NY
In the registry since
2007
Specialties on file
3
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

201 Lyons Ave
Newark, NJ 07112-2027
Phone: (973) 926-7000
Fax: (732) 923-2272
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 160 N Midland Ave, Nyack, NY 10960-1912 — (845) 348-8884

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 25MA09544000 (NJ)
Internal Medicine Physician Taxonomy 207R00000X · Licence 003193 (NY)
Hospitalist Physician Taxonomy 208M00000X · Licence 003193 (NY)

Record details

NPI number1801095864
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 11, 2007
Last updated in NPPESJune 11, 2024
Certification dateJune 11, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Group practice Internal Medicine Of Morris County Llc — 73 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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