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Rhonda Elaine Lambert, MD

NPI 1942230230ActiveIndividual· Internal Medicine, Rheumatology· San Mateo, CA

Internal Medicine, Rheumatology (MD) in San Mateo, California, licensed in CA, with an NPI issued in July 2006. Their prescriptions cost Medicare Part D more than their services did: $808,006 for 1,112 claims, against $81,941 paid for services in 2024. Abbvie Inc. was the largest of 11 companies reporting payments in 2025, $151,073 in all, mostly speaking and faculty fees.

Overview

NPI1942230230
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 3, 2006
Last updated in NPPESApr 25, 2024
Certified by providerApr 25, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Rheumatology Primary207RR0500XA41349CA
Internal Medicine207R00000XA41349CA

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 - Rheumatology (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients74
Services billed4,488 across 18 procedure codes
Paid by Medicare$81,941

Part D prescriptions in 2024

Prescriptions (claims)1,112 · 2,386 30-day fills
Patients158
Total drug cost$808,006
Generic share82% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$151,073 · 184 payments from 11 companies
  • 2024$137,675 · 209 payments from 15 companies

Top paying companies in 2025

CompanyAmountPayments
Abbvie Inc.$68,33072
Ucb, Inc.$30,46548
Pfizer Inc.$27,97526
Genzyme Corporation$10,7159
Glaxosmithkline, LLC.$8,4507

What the 2025 payments were for

  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$122,759 · 48 payments
  • Consulting Fee$12,075 · 3 payments
  • Travel and Lodging$11,951 · 71 payments
  • Food and Beverage$4,288 · 62 payments

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

Other rheumatologists in San Mateo

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