Constantin Nautnay Jaen, MD
Anesthesiology Physician · Milwaukee, WI
Constantin Nautnay Jaen, MD is an anesthesiology physician with a practice address in Milwaukee, Wisconsin, and NPI 1497285811, issued on Jun 18, 2017. Check the license (Wisconsin 74896-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Constantin Nautnay Jaen
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 74896-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2301 N Lake Dr, Milwaukee, WI 53211
- Phone
- (414) 585-1000
- Enumerated
- Jun 18, 2017
- Record last updated
- Oct 8, 2024
- Medicare enrollment
- Enrolled (PECOS I20210511000644); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,313 in Wisconsin → Look up another NPI →
Also registered at 2301 N Lake Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Abdallah AlaaragStudent in an Organized Health Care Education/Training Program1699663880
- John Albert, DPMStudent in an Organized Health Care Education/Training Program1972399749
- Stacy Alioto, OTROccupational Therapist1295789204
- Rami Alkhadra, DPMStudent in an Organized Health Care Education/Training Program1487440251
- Valeria Altamirano, DOStudent in an Organized Health Care Education/Training Program1700725546
Verify Constantin Nautnay Jaen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 74896-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 82.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $18.09
1 payment: education; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Vituity-Wisconsin Anesthesia SCFranklin, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Constantin Nautnay Jaen among 1,313 anesthesiology physician records in Wisconsin
Constantin Nautnay Jaen, MD 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 2017, is newer than 82% of them.
- NPI issued2017 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2020 · 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).
387 anesthesiology physician records list a practice address in Milwaukee
They are 387 of the 18,389 NPPES records with a practice address in Milwaukee, and 1,313 anesthesiology physician records in Wisconsin.
All 1,313 in Wisconsin → Every provider in Milwaukee → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Gregory Boulanger, M.D.Milwaukee, WI 532111184607160
- Edward Bryke, M.D.Milwaukee, WI 532111861476160
- Mark Case, M.D.Milwaukee, WI 532111801879515
- Anil Dogra, M.D.Milwaukee, WI 532111992788814
- Gregory Downs, M.D.Milwaukee, WI 532111982687810
- Ray Dzelzkalns, M.D.Milwaukee, WI 532111578546107
- Gerard W. Graham, M.D.Milwaukee, WI 532111790768596
- Laurie Kabins, M.D.Milwaukee, WI 532111114900677
Common questions
What is Constantin Nautnay Jaen, MD's NPI number?
Constantin Nautnay Jaen, MD's National Provider Identifier (NPI) is 1497285811, issued on Jun 18, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Constantin Nautnay Jaen, MD located?
The NPPES record lists a practice address at 2301 N Lake Dr, Milwaukee, WI, 53211. Phone: (414) 585-1000. Providers update this record themselves, so call before visiting.
How can I verify Constantin Nautnay Jaen, MD's license?
NPPES lists Wisconsin license number 74896-20, 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.
What is Constantin Nautnay Jaen, MD's MIPS final score?
The 2023 MIPS final score is 82.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.