Christopher Byerrum Seaman, M.D.
Cardiovascular Disease Physician · Riverside, CA
Christopher Byerrum Seaman, M.D. is a cardiovascular disease physician with a practice address in Riverside, California, and NPI 1306030242, issued on Sep 4, 2007. Check the license (California A101377, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christopher Byerrum Seaman
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- A101377 CA
MD448744 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3770 Elizabeth St, Riverside, CA 92506
- Phone
- (951) 352-3937
- Enumerated
- Sep 4, 2007
- Record last updated
- Dec 6, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 103013248 0001 PA
- Medicare enrollment
- Enrolled (PECOS I20090720000303); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2006
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 3770 Elizabeth St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jatin Amin, MDCardiovascular Disease Physician1720021397
- Nader Attia, D.OCardiovascular Disease Physician1871790717
- Mimi Biswas, M.D., MHSCardiovascular Disease Physician1518970755
- Jeremy Cox, DOCardiovascular Disease Physician1972831618
- Nicole Hitomi, PA-CPhysician Assistant1841174992
- Ravinder Kahlon, M.D.Internal Medicine Physician1548695547
Verify Christopher Byerrum Seaman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A101377Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average cardiovascular disease physician in 2024
3,319 Medicare Part D claims for 499 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Eliquis299 claims
- Atorvastatin Calcium266 claims
- Metoprolol Tartrate256 claims
- Carvedilol248 claims
- Amlodipine Besylate239 claims
- Clopidogrel200 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: $655.90
32 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 16,686 providers of this specialty with any payment received $3,819.56 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.
Bills Medicare through one group practice
- Cardiology Specialists Medical Group IncRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Byerrum Seaman among 2,574 cardiovascular disease physician records in California
Christopher Byerrum Seaman, M.D. 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 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 33% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2006 · median 1999 among the 1,742 with a school on file
- Record last updated2018 · 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 Riverside → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Anas Alameh, MDRiverside, CA 925061508327008
- Jatin Amin, MDRiverside, CA 925061720021397
- Nader Attia, D.ORiverside, CA 925061871790717
- Mimi Biswas, M.D., MHSRiverside, CA 925061518970755
- Jeremy Cox, DORiverside, CA 925061972831618
- Patrick Hu, M.D., PH.D.Riverside, CA 925061548479074
- Samuel Kumar, MDRiverside, CA 925061629050430
- Matei Popa-Radu, D.O.Riverside, CA 925061255561726
Common questions
What is Christopher Byerrum Seaman, M.D.'s NPI number?
Christopher Byerrum Seaman, M.D.'s National Provider Identifier (NPI) is 1306030242, issued on Sep 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Byerrum Seaman, M.D. located?
The NPPES record lists a practice address at 3770 Elizabeth St, Riverside, CA, 92506. Phone: (951) 352-3937. Providers update this record themselves, so call before visiting.
How can I verify Christopher Byerrum Seaman, M.D.'s license?
NPPES lists California license number A101377, 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 Christopher Byerrum Seaman, M.D. prescribe under Medicare Part D?
In 2024, Christopher Byerrum Seaman, M.D. had 3,319 Medicare Part D claims for 499 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.