Nicholas N. Armstrong, MD
Surgery Physician · Cudahy, WI
Nicholas N. Armstrong, MD is a surgery physician with a practice address in Cudahy, Wisconsin, and NPI 1457329534, issued on Mar 14, 2006. Check the license (Wisconsin 35530-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Nicholas N. Armstrong
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 35530-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 5900 S. Lake Drive, Cudahy, WI 53110
- Phone
- (414) 489-4190
- Enumerated
- Mar 14, 2006
- Record last updated
- Feb 22, 2022
- Fax
- (414) 489-4015
- Medicaid ID
- 32041000 WI
- Medicare enrollment
- Enrolled (PECOS I20080808000719); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 1993
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 726 in Wisconsin → Look up another NPI →
Also registered at 5900 S. Lake Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jack Tertadian, M.D.Internal Medicine Physician1689780462
Verify Nicholas N. Armstrong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 35530-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average surgery physician in 2024
37 Medicare Part D claims for 31 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 21 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Aurora Medical Group, Inc.Milwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas N. Armstrong among 726 surgery physician records in Wisconsin
Nicholas N. Armstrong, MD is one of 726 surgery 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 52% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1993 · median 2006 among the 446 with a school on file
- Record last updated2022 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 surgery physician records list a practice address in Cudahy
They are 4 of the 174 NPPES records with a practice address in Cudahy, and 726 surgery physician records in Wisconsin.
All 726 in Wisconsin → Every provider in Cudahy → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Laam Ko, D.OCudahy, WI 531101467624197
- Allan Pasch, MDCudahy, WI 531101073513974
- Gregory Rosner, M.D.Cudahy, WI 531101245318765
- Lief Erickson, MDBurlington, WI 531051801901913
- Stephen Kmecak, MDBurlington, WI 531051225145758
- Chad Kort, MDBurlington, WI 531051972552503
- Joseph Majewski, MDBurlington, WI 531051598872053
- James Seegers, M.D.Elkhorn, WI 531211407188279
Common questions
What is Nicholas N. Armstrong, MD's NPI number?
Nicholas N. Armstrong, MD's National Provider Identifier (NPI) is 1457329534, issued on Mar 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas N. Armstrong, MD located?
The NPPES record lists a practice address at 5900 S. Lake Drive, Cudahy, WI, 53110. Phone: (414) 489-4190. Providers update this record themselves, so call before visiting.
How can I verify Nicholas N. Armstrong, MD's license?
NPPES lists Wisconsin license number 35530-20, 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.
How much does Nicholas N. Armstrong, MD prescribe under Medicare Part D?
In 2024, Nicholas N. Armstrong, MD had 37 Medicare Part D claims for 31 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
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.