Byron J Allen, MD
Cardiovascular Disease Physician · Orange, CA
Byron J Allen, MD is a cardiovascular disease physician with a practice address in Orange, California, and NPI 1134202658, issued on Oct 21, 2006. Check the license (California 000000G44917, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Byron J Allen
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 000000G44917 CA
Self-reported in NPPES; status is on the state search - Practice location
- Uci Medical Center, Orange, CA 92868
- Phone
- (714) 456-2986
- Enumerated
- Oct 21, 2006
- Record last updated
- Apr 12, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100302000876); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1980
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at Uci Medical Center
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Bogi Andersen, MDEndocrinology, Diabetes & Metabolism Physician1164502233
- Cynthia T Anderson, MDAnesthesiology Physician1265512347
Verify Byron J Allen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 000000G44917Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
2,724 Medicare Part D claims for 264 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium331 claims
- Amlodipine Besylate185 claims
- Eliquis166 claims
- Ezetimibe147 claims
- Metoprolol Succinate145 claims
- Rosuvastatin Calcium139 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.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- UC RegentsOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Byron J Allen among 2,574 cardiovascular disease physician records in California
Byron J Allen, MD is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1980 · median 1999 among the 1,742 with a school on file
- Record last updated2008 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Orange → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Hossein Alimadadian, M.D.Orange, CA 928681285664029
- Dicran Baron, MDOrange, CA 928681881689347
- Michael Dam, MDOrange, CA 928681376547000
- Irmina Gradus-Pizlo, M.D.Orange, CA 928681356305254
- Warren Johnston, MDOrange, CA 928681427052802
- Morton Kern, MDOrange, CA 928681770587131
- Jessica Li, M.D.Orange, CA 928681982638649
- Donald Mahon, M.D.Orange, CA 928681255335659
Common questions
What is Byron J Allen, MD's NPI number?
Byron J Allen, MD's National Provider Identifier (NPI) is 1134202658, issued on Oct 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Byron J Allen, MD located?
The NPPES record lists a practice address at Uci Medical Center, Orange, CA, 92868. Phone: (714) 456-2986. Providers update this record themselves, so call before visiting.
How can I verify Byron J Allen, MD's license?
NPPES lists California license number 000000G44917, 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 Byron J Allen, MD prescribe under Medicare Part D?
In 2024, Byron J Allen, MD had 2,724 Medicare Part D claims for 264 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Byron J Allen, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.