NPPES file of Aug 9, 2026

Elizabeth Mattes Nielsen, MD

Pulmonary Disease Physician · Wauwatosa, WI

Elizabeth Mattes Nielsen, MD is a pulmonary disease physician with a practice address in Wauwatosa, Wisconsin, and NPI 1861842007, issued on Jun 19, 2016. Check the license (Wisconsin 76831, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861842007
Name
Elizabeth Mattes Nielsen
Credential
MD
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License numbers
76831 WI
036147784 IL
125.068567 IL
01089069A IN
Self-reported in NPPES; status is on the state search
Practice location
1155 N Honey Creek Pkwy, Wauwatosa, WI 53213
Phone
(414) 615-5900
Enumerated
Jun 19, 2016
Record last updated
Jul 14, 2026
Medicaid ID
100243376 WI
Medicare enrollment
Enrolled (PECOS I20230727000954); accepts Medicare assignment
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 1155 N Honey Creek Pkwy

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

  1. Caitlin Berry, NPNurse Practitioner1952050288
  2. Nicole Casady, APNPNurse Practitioner1417310160
  3. Ashok Choithani, M.D.Internal Medicine Physician1740203900
  4. Julie Christenson, FNP-BC, APNPNurse Practitioner1548783343
  5. Jennifer Jamison, MDHospice and Palliative Medicine (Internal Medicine) Physician1265827562
  6. Maxwell Nanes, DOEmergency Medicine Physician1811263346

Verify Elizabeth Mattes Nielsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 76831
    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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Industry payments in 2024: $123.38

1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Elizabeth Nielsen$123.38
  2. Specialty average$5,159.88

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Midwest Critical Care SCBrookfield, WI
  2. Prohealth Medical Group IncWaukesha, WI

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

Elizabeth Mattes Nielsen among 300 pulmonary disease physician records in Wisconsin

Elizabeth Mattes Nielsen, MD is one of 300 pulmonary disease physician records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 82% of them.

  • NPI issued2016 · 82% of these records are older, 16% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2015 · median 2003 among the 220 with a school on file
  • Record last updated2026 · 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 207RP1001X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in Wisconsin

There are 300 pulmonary disease physician records in Wisconsin.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Glenn Ragalie, M.D.Wauwatosa, WI 532131740382555
  2. Dima Adl, MDMilwaukee, WI 532111851365506
  3. Maqbool Arshad, MDMilwaukee, WI 532151518999655
  4. Dinesh Belani, M. D.Milwaukee, WI 532151659642452
  5. Emad Botros, MDMilwaukee, WI 532111689621864
  6. Ernesto Brauer, MDMilwaukee, WI 532151114970795
  7. Mary Ellis, MDMilwaukee, WI 532151962452706
  8. Theodore Gronski, MDMilwaukee, WI 532151659320059

Common questions

What is Elizabeth Mattes Nielsen, MD's NPI number?

Elizabeth Mattes Nielsen, MD's National Provider Identifier (NPI) is 1861842007, issued on Jun 19, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Mattes Nielsen, MD located?

The NPPES record lists a practice address at 1155 N Honey Creek Pkwy, Wauwatosa, WI, 53213. Phone: (414) 615-5900. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Mattes Nielsen, MD's license?

NPPES lists Wisconsin license number 76831, 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.