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Endocrinology in Valencia, CA

1 verified endocrinology doctor in Valencia.

Endocrinologists treat hormone-related conditions such as diabetes, thyroid disorders, and metabolic disease.

NPPES tenure ≠ clinical experience. "Years on NPPES" is time since the physician first registered a National Provider Identifier, not time practicing medicine. Verify current license status with the state medical board.

Verify a license at the Medical Board of California

Dr. Rena Callahan, MD

Endocrinology

19 yrs NPPES
NPI 1487856779
27235 TOURNEY RD STE 2400, Valencia, CA 91355(661) 255-5350
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $222,872 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$222,872

Total received

187

Transactions

9

Paying companies

Top paying companies

Gilead Sciences, Inc.$70,865
Stemline Therapeutics Inc.$65,826
Pfizer Inc.$25,085
Lilly USA, LLC$23,420
Seagen Inc.$19,139
Eli Lilly and Company$17,823

Among the 1,536 endocrinology doctors we've analyzed, about 57% received any industry payment (median $5,101 among those who did). This doctor's total is higher than 90% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US endocrinology doctors.

Payments to Rena Callahan do not imply any wrongdoing. Many are meals, education, or research support.

Endocrinology in Valencia, CA — Verified | DoctorsProof | DoctorsProof