NPPES file of Aug 9, 2026

Alex Deluen Doo, M.D.

Emergency Medicine Physician · Long Beach, CA

Alex Deluen Doo, M.D. is an emergency medicine physician with a practice address in Long Beach, California, and NPI 1144602004, issued on Jun 26, 2015. Check the license (California A144495, as entered in NPPES) on the Medical Board of California; 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
1144602004
Name
Alex Deluen Doo
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A144495 CA
Self-reported in NPPES; status is on the state search
Practice location
1050 Linden Ave, Long Beach, CA 90813
Phone
(562) 491-9000
Enumerated
Jun 26, 2015
Record last updated
May 22, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20181016000779); accepts Medicare assignment
Medical or professional school
University Of California, San Diego School Of Medicine, 2015
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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8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →

Also registered at 1050 Linden Ave

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

  1. Elijah AbdelmeseehHospitalist Physician1346827631
  2. Kasra Afzali, MDStudent in an Organized Health Care Education/Training Program1154070811
  3. Thulfiqar Aljashamy, MDStudent in an Organized Health Care Education/Training Program1538746573
  4. Christopher Allahverdian, MDInternal Medicine Physician1992382949
  5. Alexis Amonic, MDInternal Medicine Physician1427686476
  6. Sten Andersen, MDStudent in an Organized Health Care Education/Training Program1104575844

Verify Alex Deluen Doo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A144495    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 California 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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21% fewer Medicare Part D claims than the average emergency medicine physician in 2024

178 Medicare Part D claims for 104 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Alex Doo178
  2. Specialty average226

Most prescribed

  1. Naproxen25 claims
  2. Ondansetron Odt20 claims
  3. Cyclobenzaprine Hcl14 claims
  4. Ibuprofen11 claims
  5. Tramadol Hcl11 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

  1. Cep America - CaliforniaLong Beach, CA

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

Alex Deluen Doo among 7,751 emergency medicine physician records in California

Alex Deluen Doo, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 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 2015, is newer than 72% of them.

  • NPI issued2015 · 72% of these records are older, 25% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2015 · median 2011 among the 4,560 with a school on file
  • Record last updated2020 · 59% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

All 7,751 in California → Every provider in Long Beach → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Sripha Chan, MDLong Beach, CA 908131821298464
  2. Paarul Chandra, M.D.Long Beach, CA 908131710299060
  3. Yelena Gelman, D.O.Long Beach, CA 908131962636886
  4. Mary Gendy, M.D.Long Beach, CA 908131134383839
  5. Barry Heller, M.D.Long Beach, CA 908131841233772
  6. Daniel Houseman, M.D.Long Beach, CA 908131942464771
  7. George Knull, M.D.Long Beach, CA 908131073548764
  8. Laurie Krass, M.D.Long Beach, CA 908131427462795

Common questions

What is Alex Deluen Doo, M.D.'s NPI number?

Alex Deluen Doo, M.D.'s National Provider Identifier (NPI) is 1144602004, issued on Jun 26, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Alex Deluen Doo, M.D. located?

The NPPES record lists a practice address at 1050 Linden Ave, Long Beach, CA, 90813. Phone: (562) 491-9000. Providers update this record themselves, so call before visiting.

How can I verify Alex Deluen Doo, M.D.'s license?

NPPES lists California license number A144495, 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 Deluen Doo, M.D. prescribe under Medicare Part D?

In 2024, Alex Deluen Doo, M.D. had 178 Medicare Part D claims for 104 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.