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Federal record

FDA Warning Letter issued December 12, 2025 · FDA closed it out on July 27, 2026. Read the FDA letter → Read the close-out letter →

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Significant concerns: This provider has significant transparency or compliance concerns based on available public records. Evaluate the compliance data below before engaging their services.

ME
Compounding Pharmacy

MedisourceRx

Los Alamitos, CA

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MedisourceRx is a compounding pharmacy. The FDA issued a warning letter involving MedisourceRx on December 12, 2025, closed out on July 27, 2026. Pricing was not publicly listed, so total cost should be confirmed before signing up.

What they offerCompounding Pharmacy

40/100
Flagged
Why this score?

The Vial Score measures how much of this provider's public record Vial could confirm, and how clearly the provider discloses it. It does not measure quality of care.

85-100High Confidence
70-84Well Documented
50-69Limited Confidence
0-49Flagged

MedisourceRx scores 40, in the Flagged band. The score moves when the public record changes. For MedisourceRx, the item most likely to move it: Pricing.

Payment never changes a score.

5 of 7 checks complete. The remaining checks have not been run yet. Missing checks reduce how complete the profile is. They are not a finding by themselves.

Score history

  1. 40September 2026Record updated
  2. 38May 2026

What we found on MedisourceRx

We reviewed FDA enforcement records, OIG exclusions, DEA registration, HIPAA breach records, NPI registration, PCAB accreditation, and FDA 503B registration.

The FDA issued a warning letter involving MedisourceRx on December 12, 2025, and closed it out on July 27, 2026. Read the details below. We could not independently verify a third-party certification or accreditation as of September 2026.

Why this score: 5 of 7 checks complete. Each links to the public source it was verified against.

Federal actions
Confirmed. See the full report for detail.
See the full report for the details of this record.
FDA.govFDA close-out letterOIG LEIEDEA DiversionHHS OCR Portal
Checked September 30, 2026
Pricing
Not publicly listed
Not publicly listed. Confirm total monthly cost before enrolling.
Physicians named
Not publicly identified
NPI registration
No NPI match found in the federal registry as of 2026-09-07.
confirms a recognized healthcare entity in the federal registry.
CMS NPI Registry
Checked September 7, 2026
PCAB accreditation
No PCAB accreditation on file as of 2026-06-04.
PCAB is the primary accreditation standard for compounding pharmacies.
ACHC / PCAB
Checked June 4, 2026
FDA 503B registration
Registered as an FDA 503B outsourcing facility as of 2026-08-25.
503B registration applies to outsourcing facilities; most compounders operate under 503A.
FDA 503B Registry
Checked August 25, 2026
LegitScript certification
Not checked yet
not found is not failed. It means unconfirmed.
Show all evidence (7) Show fewer

A check we haven’t completed yet is not a mark against this provider. It just means we’re still sourcing that record. The score reflects what we’ve confirmed so far, and updates as more checks come in.

Vial describes the record, not the provider. This is not a medical recommendation or endorsement. Last reviewed September 14, 2026.

Our take

Vial Editorial

Based on the records and public materials we reviewed.

The FDA issued a warning letter to MedisourceRx on December 12, 2025. FDA closed the case on July 27, 2026 after reviewing the company's corrections. The full history is in the source report.

Questions we’d want answered

LegitScript certification not found in our review
NPI not confirmed in federal registry
5 of 7 key checks found
2 important details still need to be confirmed directly.

Worth asking before you choose

Ask these before you sign up.

Screenshot these or show your doctor: they’re the same questions Vial would ask.

Compare record details

MedisourceRx's FDA warning letter was closed out on July 27, 2026; Pacifica Pharmacy has a federal action on file (OIG exclusion).

MedisourceRxPacifica Pharmacy
Federal actionsConfirmedConfirmed
Vial Score40/10020/100
LegitScript certifiedNoNo
PCAB accreditedNoNo

What Vial measures, and what we don’t

We evaluate public records: federal enforcement history, registrations, certifications, and how transparent a provider is about its clinicians, pharmacies, and pricing. We don’t score bedside manner, clinical outcomes, or customer satisfaction, and we don’t collect user reviews.

Other compounding pharmacy providers in Vial

Other Compounding Pharmacy in Vial’s directory. Open a profile, or compare side by side.

PP
Pacifica Pharmacy5 of 7 checks complete
Valor Compounding PharmacyValor Compounding Pharmacy5 of 7 checks complete
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Sources reviewed as of September 2026

This page evaluates compliance signals, not clinical outcomes. Consult a licensed physician before starting any therapy, medication, or treatment. Vial does not provide medical advice.