Dr. Leif T. Canfield, MD
- Medicare services, 2024
- 13
- Medicare patients, 2024
- 22
- Part D claims, 2024
- 165
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 39400 Paseo Padre Pkwy, Fremont, CA 94538
- Practice phone
- Call (510) 784-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Canfield's professional email, personal email and mobile number
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Dr. Leif T. Canfield is an emergency medicine physician in Fremont, California
Dr. Canfield practices at Fremont Medical Center in Fremont, California, part of Kaiser Permanente.
Dr. Canfield's NPI, 1891873386, was assigned on November 1, 2006. Dr. Canfield graduated from Georgetown University School Of Medicine in 2003. Dr. Canfield holds California license A94364.
- NPI
- 1891873386NPI Registry (opens in a new tab)
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Practice phone
- (510) 784-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Leif T. Canfield practices at Fremont Medical Center in Fremont, California
Dr. Canfield's primary practice is Fremont Medical Center, at 39400 Paseo Padre Pkwy, Fremont, CA 94538 in Alameda County. The practice phone is (510) 784-4000.
- Fremont Medical Center39400 Paseo Padre Pkwy, Fremont, CA 94538 · Alameda CountyPhone(510) 784-4000
Source: Dmand AI Affiliation Data
Dr. Leif T. Canfield is affiliated with 1 site of care and 1 medical group
Dr. Canfield's primary practice is Fremont Medical Center in Fremont, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Leif T. Canfield's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Canfield practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fremont Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Leif T. Canfield is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Canfield's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Canfield is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Canfield's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Pennsylvania license
Emergency medicine physicians near Dr. Canfield
Counts of emergency medicine physicians 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
Dr. Leif T. Canfield billed Medicare for 13 services in 2024
CMS data shows 13 Medicare services from Dr. Canfield across 1 procedure code in 2024, for 22 Medicare patients. Medicare paid $1,223 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Canfield's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 122024: 138%
Dr. Canfield compared with the California median for emergency medicine physicians, 2024
- Dr. Canfield
- California median
- Medicare services
- 13vs 26595% below
- Medicare patients
- 22vs 24391% below
- Part D claims
- 40vs 6235% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Canfield's most billed Medicare procedure codes, 2024
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. Canfield and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Leif T. Canfield treated 22 Medicare patients in 2024, average age 59
CMS counts 22 Medicare patients who saw Dr. Canfield in 2024. The largest group is under 65, with 11 patients. 73% of them have high blood pressure, and 50% have high cholesterol. Their average risk score is 1.60, 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. Canfield's median patient age at 41, with 51% women.
Dr. Canfield's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Canfield's Medicare patients, 2024
- High blood pressure73%
- High cholesterol50%
Share of Medicare patients with each condition. A patient can have several.
Dr. Canfield's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women51%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Leif T. Canfield wrote 165 Medicare Part D claims in 2024
In 2024, Dr. Canfield wrote 165 Medicare Part D claims for 127 patients. 92% of them were for generic drugs. CMS names the drug for 40 of them, across 3 drugs with 11 or more claims each, at $348 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Canfield's Part D claims by kind of drug, 2024
- Generic152 claims92%
- Brand-name13 claims8%
Dr. Canfield's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Canfield's Part D claims, 2024
- Antibiotics28%46 of 165 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 112024: 40264%
Drugs named by CMS: 3 in 2024, 1 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
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Dr. Leif T. Canfield graduated from Georgetown University School Of Medicine
Dr. Canfield graduated from Georgetown University School Of Medicine in 2003.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Leif T. Canfield accepts plans from 1 insurance carrier
Dr. Canfield is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Canfield accepts, by number of carriers
- EPO1
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Leif T. Canfield's profile 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) |
| 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
FAQ
Frequently asked questions about Dr. Leif T. Canfield
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Leif T. Canfield's NPI number?
Dr. Leif T. Canfield's NPI number is 1891873386. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Leif T. Canfield?
Dr. Leif T. Canfield is an emergency medicine physician in Fremont, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Leif T. Canfield practice?
Dr. Canfield practices at 39400 Paseo Padre Pkwy, Fremont, CA 94538. Dr. Canfield's primary practice is Fremont Medical Center in Fremont, California, part of Kaiser Permanente.
What is Dr. Leif T. Canfield's office phone number?
The practice phone on file for Dr. Canfield is (510) 784-4000.
What is Dr. Leif T. Canfield's medical license number?
Dr. Canfield holds California license A94364, one of the licenses on file in 2 states.
Which states has Dr. Leif T. Canfield been licensed in?
Dmand AI has state licenses on file for Dr. Canfield in California (2006 to 2026) and Pennsylvania (2003 to 2006).
Which hospitals is Dr. Leif T. Canfield affiliated with?
Dr. Canfield practices at Fremont Medical Center in Fremont, California.
What medical group is Dr. Leif T. Canfield part of?
Dr. Canfield is linked to The Permanente Medical Group, Inc.
Does Dr. Leif T. Canfield accept Medicare?
Yes. CMS data shows Dr. Canfield billed Medicare for 13 services in 2024.
How many Medicare patients does Dr. Leif T. Canfield see?
CMS counts 22 Medicare patients who saw Dr. Canfield in 2024, with an average age of 59.
Show 6 more questionsShow fewer questions
Is Dr. Leif T. Canfield board certified?
Yes. Dr. Canfield is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Leif T. Canfield bill to Medicare?
In 2024, Dr. Canfield's most billed Medicare services were emergency department visit (99284).
Where did Dr. Leif T. Canfield go to medical school?
Dr. Canfield graduated from Georgetown University School Of Medicine in 2003.
What drugs does Dr. Leif T. Canfield prescribe most?
In 2024 Medicare Part D data, Dr. Canfield's most prescribed drugs by claims were Cefadroxil, Ondansetron ODT and Prednisone.
How long has Dr. Leif T. Canfield been practicing?
Dr. Canfield graduated from medical school in 2003, 23 years ago.
What insurance does Dr. Leif T. Canfield accept?
Dr. Canfield is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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