Alex Allwein, MD
Emergency Medicine Physician · Chula Vista, CA
Alex Allwein, MD is an emergency medicine physician with a practice address in Chula Vista, California, and NPI 1821066333, issued on Mar 9, 2006. Check the license (California C146148, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alex Allwein
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- C146148 CA
MD0000040296 TN
40296 TN
Self-reported in NPPES; status is on the state search - Practice location
- 986 Loma VW, Chula Vista, CA 91910
- Phone
- (619) 395-7383
- Enumerated
- Mar 9, 2006
- Entity
- Type 1 · individual
Verify Alex Allwein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C146148Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
57% fewer Medicare Part D claims than the average emergency medicine physician in 2024
151 Medicare Part D claims for 91 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Prednisone13 claims
- Cephalexin12 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.
Industry payments in 2024: $13.15
1 payment, mostly food and beverage; the largest payer was iRhythm Technologies, Inc.. The 12,165 providers of this specialty with any payment received $1,340.71 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.
One hospital or facility affiliation
- Ridgecrest Regional HospitalRidgecrest, CA · Critical Access Hospitals
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Emergency Medicine Physician providers in California
There are 7,133 emergency medicine physician records in California.
Other emergency medicine physician records in California
- Cooper Aakhus, MDStanford, CA1194351007
- Pyra Aarden, MDMartinez, CA1417058199
- Neal Aaron, D.O.Encinitas, CA1114283520
- Eric AaserudeWalnut Creek, CA1811491194
- Nader Abas, MDBarstow, CA1346288305
- Michael Abbo, MDNovato, CA1205819042
- Daniel Abbott, MDFullerton, CA1518907864
- Paul-Andre Abboud, M.D.Oakland, CA1710065503
- Mostafa Abdel-Hamid, MDStanford, CA1457918740
- Ashraf Abdel-KerimChino, CA1396961538
Common questions
What is Alex Allwein, MD's NPI number?
Alex Allwein, MD's National Provider Identifier (NPI) is 1821066333, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alex Allwein, MD located?
The NPPES record lists a practice address at 986 Loma VW, Chula Vista, CA, 91910. Phone: (619) 395-7383. Providers update this record themselves, so call before visiting.
How can I verify Alex Allwein, MD's license?
NPPES lists California license number C146148, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alex Allwein, MD prescribe under Medicare Part D?
In 2024, Alex Allwein, MD had 151 Medicare Part D claims for 91 beneficiaries; the average among emergency medicine physician prescribers was 355. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.