NPI Lens

Mark A. Greenfield, D.O.

NPI 1205826799ActiveIndividual· Orthopaedic Surgery· Phoenix, AZ

Orthopaedic Surgery (D.O.) in Phoenix, Arizona, licensed in AZ, with an NPI issued in October 2005. Enrolled in Medicare as practitioner - orthopedic surgery. Smith+nephew, Inc. was the largest of 5 companies reporting payments in 2025, $211.11 in all, mostly food and beverage.

Overview

NPI1205826799
StatusActive
Entity typeIndividual
CredentialD.O.
Sole proprietorYes
NPI issuedOct 25, 2005
Last updated in NPPESJun 25, 2010

Specialties and licenses

TaxonomyCodeLicenseState
Orthopaedic Surgery Primary207X00000X2827AZ

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 - Orthopedic Surgery (AZ)

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$211.11 · 5 payments from 5 companies
  • 2024$391.05 · 7 payments from 6 companies

Top paying companies in 2025

CompanyAmountPayments
Smith+nephew, Inc.$125.331
Eisai Inc.$30.581
Astrazeneca Pharmaceuticals LP$22.121
Tolmar, Inc.$17.581
Salix Pharmaceuticals, A Division of Bausch Health US, LLC$15.501

What the 2025 payments were for

  • Food and Beverage$211.11 · 5 payments

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

Other orthopedic surgeons in Phoenix

All 219 orthopedic surgeons in Phoenix · All orthopedic surgeons in Arizona