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

Dr. Alex Juan Carlos Jr., MD

Individual provider Nephrology Physician · NPI 1770147225

Dr. Alex Juan Carlos Jr., MD practises Nephrology in Waipahu, Hawaii. Qualified in 2014, 12 years ago. Practices with Hawaii Nephrologists LLC, an 8-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Hawaii.

Years since qualifying
12
Licensed in
HI
In the registry since
2019
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

94-229 Waipahu Depot St Ste 101
Waipahu, HI 96797-3032
Phone: (808) 206-9849
Fax: (808) 206-9850
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 75-184 Hualalai Rd Ste 202, Kailua Kona, HI 96740-1719 — (808) 329-8251

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence MD-23920-0 (HI)

Record details

NPI number1770147225
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 30, 2019
Last updated in NPPESJuly 16, 2024
Certification dateJuly 16, 2024

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Hawaii Nephrologists Llc — 8 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 patients107
Services billed 296 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,123 46 payments · a meal or drink at a meeting or visit, not a fee
Education $11 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

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

Colleagues at Hawaii Nephrologists LLC

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

Other providers in Waipahu