NPPES file of Aug 9, 2026

Tonia M. Greenwood, M.D.

Anesthesiology Physician · Two Rivers, WI

Tonia M. Greenwood, M.D. is an anesthesiology physician with a practice address in Two Rivers, Wisconsin, and NPI 1386870244, issued on Jun 5, 2009. Check the license (Wisconsin -6279620, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386870244
Name
Tonia M. Greenwood
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
-6279620 WI
Self-reported in NPPES; status is on the state search
Practice location
5000 Memorial Dr, Two Rivers, WI 54241
Phone
(920) 686-5734
Enumerated
Jun 5, 2009
Record last updated
Jul 15, 2024
Medicaid ID
100046212 WI
Medicare enrollment
Enrolled (PECOS I20150810002133); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2009
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5000 Memorial Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Andrea AgenPhysical Therapist1891161170
  2. Megan Bruegge, PTPhysical Therapist1861718280
  3. Devin Calaway, CRNACertified Registered Nurse Anesthetist1306480157
  4. Natalie Christensen, SLPSpeech-Language Pathologist1528315082
  5. Christine Clark, COTAOccupational Therapy Assistant1720113475
  6. David Copp, M.D.Surgery Physician1013947225

Verify Tonia M. Greenwood in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license -6279620
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Association OF Hospital Anesthesiologists SCAppleton, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tonia M. Greenwood among 1,313 anesthesiology physician records in Wisconsin

Tonia M. Greenwood, M.D. is one of 1,313 anesthesiology physician records with a practice address in Wisconsin. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 61% of them.

  • NPI issued2009 · 61% of these records are older, 36% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2009 · median 2006 among the 872 with a school on file
  • Record last updated2024 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in Wisconsin

There are 1,313 anesthesiology physician records in Wisconsin.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Paul Mihalakakos, MDTwo Rivers, WI 542411790877082
  2. Anthony Renkas, D.O.Two Rivers, WI 542411740459742
  3. Lawrence Bellmore, MDSturgeon Bay, WI 542351295056935
  4. Michael Bruno, MDSturgeon Bay, WI 542351245247782
  5. Martin Finck, M.D.Sturgeon Bay, WI 542351578572996
  6. Brian Matysiak, MDSturgeon Bay, WI 542351720252406
  7. Brittany Schneider, MDSturgeon Bay, WI 542351417488917
  8. Andrew Trochlell, M.D.Manitowoc, WI 542211851489967

Common questions

What is Tonia M. Greenwood, M.D.'s NPI number?

Tonia M. Greenwood, M.D.'s National Provider Identifier (NPI) is 1386870244, issued on Jun 5, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Tonia M. Greenwood, M.D. located?

The NPPES record lists a practice address at 5000 Memorial Dr, Two Rivers, WI, 54241. Phone: (920) 686-5734. Providers update this record themselves, so call before visiting.

How can I verify Tonia M. Greenwood, M.D.'s license?

NPPES lists Wisconsin license number -6279620, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.