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Randolph Del Castillo Senining, MD

NPI 1841216405ActiveIndividual· Internal Medicine, Infectious Disease· Bakersfield, CA

Internal Medicine, Infectious Disease (MD) with Ravi Patel M D Inc, practicing in Bakersfield, California. In 2024 Medicare paid $305,096 for 572 patients, and Part D covered 521 of their prescriptions, 79% of them generic. Paratek Pharmaceuticals, Inc. was the largest of 2 companies reporting payments in 2025, $42.86 in all, mostly food and beverage. Lists Adventist Health Bakersfield and 2 other hospitals as hospital affiliations.

Overview

NPI1841216405
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 15, 2006
Last updated in NPPESSep 11, 2012

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Infectious Disease Primary207RI0200XA71636CA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients572
Services billed4,111 across 40 procedure codes
Paid by Medicare$305,096

Part D prescriptions in 2024

Prescriptions (claims)521 · 597 30-day fills
Patients122
Total drug cost$444,999
Generic share79% of claims

Medicare sources and data years

Education and affiliations

Graduation year1985
Medicare specialtyInternal Medicine
Secondary specialtiesInfectious Disease

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$42.86 · 2 payments from 2 companies
  • 2024$34.50 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Paratek Pharmaceuticals, Inc.$25.321
Sobi, Inc$17.541

What the 2025 payments were for

  • Food and Beverage$42.86 · 2 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other infectious disease specialists in Bakersfield

All 16 infectious disease specialists in Bakersfield · All infectious disease specialists in California