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

Dr. Alejandro Santillan Cadenillas, MD

Individual provider Vascular Neurology Physician · NPI 1780027169

Dr. Alejandro Santillan Cadenillas, MD practises Neuropsychiatry in Richmond, Virginia. Qualified in 2005, 21 years ago. Practices with Riverside Physician Services Inc, a 793-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Virginia.

Years since qualifying
21
Licensed in
VA
In the registry since
2013
Specialties on file
2
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

5875 Bremo Rd Ste 311
Richmond, VA 23226-1934
Phone: (804) 977-8896
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 12200 Warwick Blvd Ste 410, Newport News, VA 23601-2548 — (757) 534-5200

Specialties & licences

Neuroradiology Physician (primary) Taxonomy 2085N0700X · Licence 0101269060 (VA)
Vascular Neurology Physician Taxonomy 2084V0102X · Licence 0101269060 (VA)

Record details

NPI number1780027169
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 16, 2013
Last updated in NPPESFebruary 29, 2024
Certification dateFebruary 29, 2024

Medicare enrollment

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

Medicare specialtyNEUROPSYCHIATRY
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Riverside Physician Services Inc — 793 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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 patients220
Services billed 469 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

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 $1,580 23 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $199 2 payments · travel or lodging paid or reimbursed, such as to attend a conference

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.

  • Hca Florida Aventura Hospital Hospital · Aventura, FL · listed as Aventura Hospital
  • Riverside Regional Medical Center Hospital · Newport News, VA
  • Hca Florida Kendall Hospital Hospital · Miami, FL
  • Hca Florida Mercy Hospital Hospital · Plantation, FL
  • Westside Regional Medical Center Hospital · Plantation, FL

Colleagues at Riverside Physician Services Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 793 clinicians in the practice; 12 are shown here.