Dr. Gregory Scott Canfield, MD, PhD

  • San Luis Obispo, CA
  • Infectious disease specialist
NPI1144632159PAC ID8426345869
Medicare services, 2024
464
Medicare patients, 2024
180
Part D claims, 2019
47
Publications
9
Hospital affiliations
4
Practice address
1911 Johnson Ave, San Luis Obispo, CA 93401
Practice phone
Call (805) 543-5353
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Dignity Health - French Hospital Medical Center

Hospital · San Luis Obispo, California

See all 8 affiliations

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Dr. Gregory Scott Canfield is an infectious disease specialist in San Luis Obispo, California

Dr. Canfield practices at Dignity Health - French Hospital Medical Center in San Luis Obispo, California, part of CommonSpirit Health.

Dr. Canfield's NPI, 1144632159, was assigned on May 25, 2014. Dr. Canfield graduated from Jacobs School of Medicine and Biomedical Sciences in 2014. Dr. Canfield holds California license A143074.

NPI and contact details
Medicare PAC ID
8426345869
NPI enumeration date
May 25, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(805) 543-5353
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
38
Medical school graduation
2014

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Gregory Scott Canfield practices at Dignity Health - French Hospital Medical Center in San Luis Obispo, California

Dr. Canfield's primary practice is Dignity Health - French Hospital Medical Center, at 1911 Johnson Ave, San Luis Obispo, CA 93401 in San Luis Obispo County. The practice phone is (805) 543-5353.

Source: Dmand AI Affiliation Data

Dr. Gregory Scott Canfield is affiliated with 6 sites of care and 2 medical groups

Dr. Canfield's primary practice is Dignity Health - French Hospital Medical Center in San Luis Obispo, California, part of CommonSpirit Health. Dr. Canfield is also affiliated with Adventist Health Sierra Vista. The medical group on file is Central Coast Chest Consultants. Dmand AI also links Dr. Canfield to 2 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.

See all 8 affiliations for Dr. Canfield

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Gregory Scott Canfield's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Canfield practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Dignity Health - French Hospital Medical CenterAvailable with a free account
+5 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dmand AI maps EHR vendors, IT decision makers and buying committees across CommonSpirit Health and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Gregory Scott Canfield is one of 1,054 infectious disease specialists in California

Infectious disease is Dr. Canfield's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Canfield is board certified in critical care medicine by the American Board of Internal Medicine. Dmand AI has Dr. Canfield's licenses on file in 2 states: California and Colorado.

Specialties and state licenses

  • Infectious disease, CaliforniaPrimaryLicense A143074 · 2016 to 2026 · taxonomy 207RI0200X
  • Colorado license2019 to 2021

Clinical focus

Dmand AI lists pneumonia and respiratory infection and sepsis among the conditions Dr. Canfield treats.

Infectious disease specialists near Dr. Canfield

Counts of infectious disease specialists with a Dmand AI profile, by place and practice. Each opens the list.

1,054infectious disease specialists in California
2infectious disease specialists in San Luis Obispo

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Gregory Scott Canfield billed Medicare for 464 services in 2024

CMS data shows 464 Medicare services from Dr. Canfield across 6 procedure codes in 2024, for 180 Medicare patients. Medicare paid $58,024 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024464
Medicare patients180
Paid by Medicare$58,024
Procedure codes6

Dr. Canfield's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3122024: 39426%
Imaging
2023: 202024: 3785%
Surgery
2023: 02024: 33

Dr. Canfield compared with the California median for infectious disease specialists, 2024

  • Dr. Canfield
  • California median
Medicare services
464vs 4298% above
Medicare patients
180vs 180Close to median
Part D claims
47vs 11961% below

Medians across 930 infectious disease specialists 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.

See all procedures by Dr. Canfield

Need commercial claims for Dr. Canfield?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Canfield and other infectious disease specialists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Gregory Scott Canfield treated 180 Medicare patients in 2024, average age 75

CMS counts 180 Medicare patients who saw Dr. Canfield in 2024. The largest group is 75 to 84, with 75 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.01, 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 71, with 39% women.

Medicare patients, 2024180
Average age75
Average risk score2.01
Also on Medicaid28%

Dr. Canfield's Medicare patients by age, 2024

Dr. Canfield's Medicare patients by sex, 2024

  • Women7743%
  • Men10357%

Chronic conditions among Dr. Canfield's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Heart failure51%
  4. Atrial fibrillation50%
  5. Arthritis48%
  6. Chronic kidney disease46%
  7. Ischemic heart disease45%
  8. Anxiety41%

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 71

Patient panel by sex, all payers

  • Women39%
  • Men61%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Gregory Scott Canfield wrote 47 Medicare Part D claims in 2019

In 2019, Dr. Canfield wrote 47 Medicare Part D claims. They cover 4 drugs, with $929 in total drug cost. In 2018, CMS named 333 claims across 17 drugs.

Part D claims, 201947
Drugs named by CMS4
Total drug cost$929

Dr. Canfield's most prescribed drugs by claims, 2019

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2018 to 2019

  • 2018
  • 2019
Claims for drugs CMS names
2018: 3332019: 4786%

Drugs named by CMS: 4 in 2019, 17 in 2018.

See all prescribing by Dr. Canfield

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

How Dr. Gregory Scott Canfield takes part in Medicare

Dr. Canfield accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Gregory Scott Canfield has 9 publications on record

Dmand AI links 9 papers to Dr. Canfield in 2020. 2020 was the busiest year, with 2. Dr. Canfield's most frequent co-authors are Carlos E. Franco-Paredes, MD, Sarah C. Mann, MD and Paula Eem Pecen, MD.

Papers9

Dr. Canfield's most frequent co-authors

Recent publications by Dr. Canfield

See all 9 publications and co-authors

See who Dr. Canfield researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Canfield works with, so you can find a warm path to the right infectious disease specialists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Gregory Scott Canfield received $61 in industry payments from 2016 to 2023

CMS Open Payments shows 4 general payments to Dr. Canfield from 4 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Insmed, Inc. paid the most, $21.

General payments to Dr. Canfield by program year, 2016 to 2023

Companies that paid Dr. Canfield the most, 2016 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Canfield

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Gregory Scott Canfield graduated from Jacobs School of Medicine and Biomedical Sciences

Dr. Canfield graduated from Jacobs School of Medicine and Biomedical Sciences in 2014.

  1. Medical schoolJacobs School of Medicine and Biomedical Sciences
  2. Board certified in critical care medicineAmerican Board of Internal Medicine
  3. Board certified in infectious diseaseAmerican Board of Internal Medicine
  4. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Gregory Scott Canfield accepts plans from 14 insurance carriers

Dr. Canfield is in network with 14 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Aetna
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +6 more carriersWith a free account

Plan types Dr. Canfield accepts, by number of carriers

  1. PPO9
  2. Medicare7
  3. HMO6
  4. POS4
  5. EPO3

Source: Dmand AI Insurance Network Data

Sources for Dr. Gregory Scott Canfield's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Gregory Scott 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. Gregory Scott Canfield's NPI number?

Dr. Gregory Scott Canfield's NPI number is 1144632159. It was assigned on May 25, 2014, and it is active in the NPI Registry.

What kind of doctor is Dr. Gregory Scott Canfield?

Dr. Gregory Scott Canfield is an infectious disease specialist in San Luis Obispo, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).

Where does Dr. Gregory Scott Canfield practice?

Dr. Canfield practices at 1911 Johnson Ave, San Luis Obispo, CA 93401. Dr. Canfield's primary practice is Dignity Health - French Hospital Medical Center in San Luis Obispo, California, part of CommonSpirit Health. Dmand AI also links Dr. Canfield to 2 hospitals, 2 group practices and clinics and 1 medical group.

What is Dr. Gregory Scott Canfield's office phone number?

The practice phone on file for Dr. Canfield is (805) 543-5353.

What is Dr. Gregory Scott Canfield's medical license number?

Dr. Canfield holds California license A143074, one of the licenses on file in 2 states.

Which states has Dr. Gregory Scott Canfield been licensed in?

Dmand AI has state licenses on file for Dr. Canfield in California (2016 to 2026) and Colorado (2019 to 2021).

Which hospitals is Dr. Gregory Scott Canfield affiliated with?

Dr. Canfield practices at Dignity Health - French Hospital Medical Center in San Luis Obispo, California. Dr. Canfield is also affiliated with Adventist Health Sierra Vista. Dmand AI links Dr. Canfield to 2 more hospitals.

What medical group is Dr. Gregory Scott Canfield part of?

Dr. Canfield is linked to Central Coast Chest Consultants. Dmand AI links Dr. Canfield to 1 more medical group.

Does Dr. Gregory Scott Canfield accept Medicare?

Yes. CMS data shows Dr. Canfield billed Medicare for 464 services in 2024, and Dr. Canfield accepts Medicare assignment.

How many Medicare patients does Dr. Gregory Scott Canfield see?

CMS counts 180 Medicare patients who saw Dr. Canfield in 2024, with an average age of 75.

Show 9 more questionsShow fewer questions

Is Dr. Gregory Scott Canfield board certified?

Yes. Dr. Canfield is board certified in critical care medicine by the American Board of Internal Medicine.

What services does Dr. Gregory Scott Canfield bill to Medicare?

In 2024, Dr. Canfield's most billed Medicare services were critical care (99291), hospital inpatient care (99233) and critical care (99292).

Where did Dr. Gregory Scott Canfield go to medical school?

Dr. Canfield graduated from Jacobs School of Medicine and Biomedical Sciences in 2014.

What drugs does Dr. Gregory Scott Canfield prescribe most?

In 2019 Medicare Part D data, Dr. Canfield's most prescribed drugs by claims were Atorvastatin Calcium, Klor-Con-Ef and Simvastatin.

Has Dr. Gregory Scott Canfield received payments from drug or device companies?

CMS Open Payments shows $61 in general payments to Dr. Canfield from 4 companies from 2016 to 2023. The largest total came from Insmed, Inc.

How long has Dr. Gregory Scott Canfield been practicing?

Dr. Canfield graduated from medical school in 2014, 12 years ago.

Does Dr. Gregory Scott Canfield do research?

Dmand AI links 9 publications to Dr. Canfield.

Who does Dr. Gregory Scott Canfield publish with?

Dr. Canfield's most frequent co-authors are Carlos E. Franco-Paredes, MD (3 shared papers), Sarah C. Mann, MD (1 shared paper) and Paula Eem Pecen, MD (1 shared paper).

What insurance does Dr. Gregory Scott Canfield accept?

Dr. Canfield is in network with 14 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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