Left atrial myxoma: an unusual cause of pre-syncope and symptomatic bradycardia (opens in a new tab)
BMC Cardiovasc Disord
Primary practice
Find Dr. Sinfield's professional email, personal email and mobile number
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Dr. Sinfield practices at MemorialCare Saddleback Medical Center in Laguna Hills, California, part of MemorialCare Health System.
Dr. Sinfield's NPI, 1013545979, was assigned on March 27, 2020. Dr. Sinfield graduated from Drexel University College Of Medicine in 2020. Dr. Sinfield holds California license A183275.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sinfield's primary practice is MemorialCare Saddleback Medical Center, at 24451 Health Center Drive, Laguna Hills, CA 92653 in Orange County. The practice phone is (949) 837-4500.
Source: Dmand AI Affiliation Data
Dr. Sinfield's primary practice is MemorialCare Saddleback Medical Center in Laguna Hills, California, part of MemorialCare Health System. Dr. Sinfield is also affiliated with Long Beach Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Sinfield to 3 more hospitals, 3 medical groups and 2 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sinfield practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MemorialCare Saddleback Medical Center | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Hospitalist is Dr. Sinfield's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Sinfield is board certified in internal medicine by the American Board of Internal Medicine. Dr. Sinfield is licensed in California.
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
CMS data shows 420 Medicare services from Dr. Sinfield across 6 procedure codes in 2024, for 179 Medicare patients. Medicare paid $33,500 for them. Every service was in a facility, such as a hospital, rather than an office.
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sinfield and other hospitalists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
CMS counts 179 Medicare patients who saw Dr. Sinfield in 2024. The largest group is 65 to 74, with 65 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 54% are also on Medicaid. Their average risk score is 2.94, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Sinfield's median patient age at 70, with 56% women.
Share of Medicare patients with each condition. A patient can have several.
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Median age 70
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
In 2024, Dr. Sinfield wrote 298 Medicare Part D claims for 150 patients. 86% of them were for generic drugs. CMS names the drug for 129 of them, across 7 drugs with 11 or more claims each, at $6,728 in total drug cost. In 2023, CMS named 26 claims across 2 drugs.
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Drugs named by CMS: 7 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Sinfield accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dmand AI links 6 papers to Dr. Sinfield, published from 2021 to 2022. 2022 was the busiest year, with 3. The most frequent topics are Heart Ventricles. Dr. Sinfield has published most often in J Cardiothorac Surg. Dr. Sinfield's most frequent co-authors are Michael Manpreet-Singh Johl, George Hany Nasr, MD and Fabio Molina Sagebin, MD.
Topics Dr. Sinfield writes about most
BMC Cardiovasc Disord
J Cardiothorac Surg
See who Dr. Sinfield researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sinfield works with, so you can find a warm path to the right hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dmand AI lists 2 awards for Dr. Sinfield, most recently DOM Chair’s Trainee Innovation Grant Funding in 2021.
Source: Dmand AI Professional Profile Data
Dr. Sinfield graduated from Drexel University College Of Medicine in 2020.
Source: Dmand AI Professional Profile Data
Dr. Sinfield is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
Source: Dmand AI Insurance Network Data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
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Dr. Steven Sinfield's NPI number is 1013545979. It was assigned on March 27, 2020, and it is active in the NPI Registry.
Dr. Steven Sinfield is a hospitalist in Laguna Hills, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Dr. Sinfield practices at 24451 Health Center Drive, Laguna Hills, CA 92653. Dr. Sinfield's primary practice is MemorialCare Saddleback Medical Center in Laguna Hills, California, part of MemorialCare Health System. Dmand AI also links Dr. Sinfield to 3 hospitals, 3 medical groups and 2 group practices and clinics.
The practice phone on file for Dr. Sinfield is (949) 837-4500.
Dr. Sinfield holds California license A183275.
Dr. Sinfield practices at MemorialCare Saddleback Medical Center in Laguna Hills, California. Dr. Sinfield is also affiliated with Long Beach Medical Center. Dmand AI links Dr. Sinfield to 3 more hospitals.
Dr. Sinfield is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Sinfield to 3 more medical groups.
Yes. CMS data shows Dr. Sinfield billed Medicare for 420 services in 2024, and Dr. Sinfield accepts Medicare assignment.
CMS counts 179 Medicare patients who saw Dr. Sinfield in 2024, with an average age of 75.
Yes. Dr. Sinfield is board certified in internal medicine by the American Board of Internal Medicine.
In 2024, Dr. Sinfield's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99233).
Dr. Sinfield graduated from Drexel University College Of Medicine in 2020.
In 2024 Medicare Part D data, Dr. Sinfield's most prescribed drugs by claims were Furosemide, Doxycycline Hyclate and Amoxicillin-Clavulanate Potass.
Dr. Sinfield graduated from medical school in 2020, 6 years ago.
Dmand AI links 6 publications to Dr. Sinfield, published from 2021 to 2022.
Dr. Sinfield's most frequent co-authors are Michael Manpreet-Singh Johl (2 shared papers), George Hany Nasr, MD (2 shared papers) and Fabio Molina Sagebin, MD (2 shared papers).
Dr. Sinfield is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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