Ryan J. Alcantara, MD
Emergency Medicine Physician · Milwaukee, WI
Ryan J. Alcantara, MD is an emergency medicine physician with a practice address in Milwaukee, Wisconsin, and NPI 1619555703, issued on Mar 30, 2021. Check the license (Wisconsin 87307-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ryan J. Alcantara
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 87307-20 WI
MD61540098 WA
Self-reported in NPPES; status is on the state search - Practice location
- 900 N 92ND St, Milwaukee, WI 53226
- Phone
- (414) 805-3000
- Enumerated
- Mar 30, 2021
- Record last updated
- May 16, 2026
- Medicare enrollment
- Enrolled (PECOS I20250801001416); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2021
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Also registered at 900 N 92ND St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hailey AhrensPharmacist1962283366
- Alex ArndtPharmacist1275456857
- Marie Baguidy, MDStudent in an Organized Health Care Education/Training Program1487220513
- Robert Barr, DPTPhysical Therapist1376423517
- Julia BassPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1891457719
- Claire Beres, MDStudent in an Organized Health Care Education/Training Program1578266086
Verify Ryan J. Alcantara in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 87307-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average emergency medicine physician in 2024
39 Medicare Part D claims for 27 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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
- Northwest Emergency Physicians LLCAberdeen, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan J. Alcantara among 1,464 emergency medicine physician records in Wisconsin
Ryan J. Alcantara, MD is one of 1,464 emergency medicine physician records with a practice address in Wisconsin. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2021 · median 2011 among the 844 with a school on file
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
358 emergency medicine physician records list a practice address in Milwaukee
They are 358 of the 18,389 NPPES records with a practice address in Milwaukee, and 1,464 emergency medicine physician records in Wisconsin.
All 1,464 in Wisconsin → Every provider in Milwaukee → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Eric Adar, MDWauwatosa, WI 532261255325726
- Tom Aufderheide, MDMilwaukee, WI 532261336190859
- Charles Cady, MDMilwaukee, WI 532261831140227
- Louis-Marcel Cesar, M.D.Milwaukee, WI 532261235116690
- Mario Colella, D.O.Milwaukee, WI 532261336106277
- Stephen Hargarten, MDMilwaukee, WI 532261760433502
- Manuel Hernandez, M.D.Milwaukee, WI 532261336102540
- Michael Lutes, MDMilwaukee, WI 532261629029475
Common questions
What is Ryan J. Alcantara, MD's NPI number?
Ryan J. Alcantara, MD's National Provider Identifier (NPI) is 1619555703, issued on Mar 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ryan J. Alcantara, MD located?
The NPPES record lists a practice address at 900 N 92ND St, Milwaukee, WI, 53226. Phone: (414) 805-3000. Providers update this record themselves, so call before visiting.
How can I verify Ryan J. Alcantara, MD's license?
NPPES lists Wisconsin license number 87307-20, 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 Ryan J. Alcantara, MD prescribe under Medicare Part D?
In 2024, Ryan J. Alcantara, MD had 39 Medicare Part D claims for 27 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.