NPPES file of Aug 9, 2026

Elizabeth Sara Allen, M.D.

Blood Banking & Transfusion Medicine Physician · San Diego, CA

Elizabeth Sara Allen, M.D. is a blood banking & transfusion medicine physician with a practice address in San Diego, California, and NPI 1174814065, issued on Apr 26, 2011. Check the license (California A125542, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1174814065
Name
Elizabeth Sara Allen
Credential
M.D.
Primary taxonomy
Blood Banking & Transfusion Medicine Physician 207ZB0001X
License number
A125542 CA
Self-reported in NPPES; status is on the state search
Practice location
200 W. Arbor Drive - MC 8720, San Diego, CA 92103
Phone
(619) 453-7669
Enumerated
Apr 26, 2011
Record last updated
Aug 6, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160920000296); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 2011
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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Verify Elizabeth Sara Allen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A125542
    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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Bills Medicare through one group practice

  1. Regents OF The University OF CaliforniaSan Diego, CA

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

Elizabeth Sara Allen among 54 blood banking & transfusion medicine physician records in California

Elizabeth Sara Allen, M.D. is one of 54 blood banking & transfusion medicine physician records with a practice address in California. 44% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 57% of them.

  • NPI issued2011 · 57% of these records are older, 37% newer
  • In a Medicare fileYes · 44% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated2011 · median 2011 among the 21 with a school on file
  • Record last updated2016 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZB0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Blood Banking & Transfusion Medicine Physician providers in California

There are 54 blood banking & transfusion medicine physician records in California.

The 8 blood banking & transfusion medicine physician records with the nearest ZIP codes

  1. Patricia Kopko, M.D.San Diego, CA 921031265735013
  2. Michael Bonin, MDSan Diego, CA 921201003964974
  3. Karine Hollis-Perry, M.D.San Diego, CA 921341518946623
  4. Ahmad Al-Sabbagh, MDCarlsbad, CA 920081598965782
  5. Wesley Stevens, M.D.Loma Linda, CA 923541760591416
  6. Yung-Kang Chow, M.D., A.M.Irvine, CA 926031205190337
  7. Jennifer Woo, MDIrvine, CA 926181265876510
  8. Gagan Mathur, MD, MBAOrange, CA 928681386999175

Common questions

What is Elizabeth Sara Allen, M.D.'s NPI number?

Elizabeth Sara Allen, M.D.'s National Provider Identifier (NPI) is 1174814065, issued on Apr 26, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Sara Allen, M.D. located?

The NPPES record lists a practice address at 200 W. Arbor Drive - MC 8720, San Diego, CA, 92103. Phone: (619) 453-7669. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Sara Allen, M.D.'s license?

NPPES lists California license number A125542, 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.

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.