NPI Lens

Tonya Ahlborn Chaffee, MD

NPI 1437261591ActiveIndividual· Pediatrics· San Francisco, CA

Pediatrics (MD) in San Francisco, California, licensed in CA, with an NPI issued in August 2006. Enrolled in Medicare as practitioner - pediatric medicine. Gen-Probe, Inc. was the largest of 3 companies reporting payments in 2025, $53,128 in all, mostly consulting fees.

Overview

NPI1437261591
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 31, 2006
Last updated in NPPESDec 27, 2011

Specialties and licenses

TaxonomyCodeLicenseState
Pediatrics Primary208000000XG77911CA
Pediatrics, Adolescent Medicine2080A0000XG77911CA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Pediatric Medicine (CA)

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$53,128 · 51 payments from 3 companies
  • 2024$92,428 · 85 payments from 3 companies

Top paying companies in 2025

CompanyAmountPayments
Gen-Probe, Inc.$25,5715
Organon LLC$21,75526
Hologic Sales and Service, LLC$5,80220

What the 2025 payments were for

  • Consulting Fee$25,425 · 3 payments
  • Compensation for serving as faculty or as a speaker for a medical education program$21,709 · 25 payments
  • Travel and Lodging$5,477 · 17 payments
  • Food and Beverage$516.59 · 6 payments

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

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