Gregory Scott Canfield, M.D., PH.D.
Infectious Disease Physician · San Luis Obispo, CA
Gregory Scott Canfield, M.D., PH.D. is an infectious disease physician with a practice address in San Luis Obispo, California, and NPI 1144632159, issued on May 25, 2014. Check the license (California A143074, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory Scott Canfield
- Credential
- M.D., PH.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- A143074 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1428 Phillips LN Ste 203, San Luis Obispo, CA 93401
- Phone
- (805) 543-4407
- Enumerated
- May 25, 2014
- Record last updated
- Oct 16, 2023
- Fax
- (805) 543-4587
- Medicare enrollment
- Enrolled (PECOS I20160928001288); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 1428 Phillips LN Ste 203
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Cartozian, NPFamily Nurse Practitioner1851047443
- Justin Grammy, DOHospitalist Physician1003254483
- Ross Michel, M.DPulmonary Disease Physician1871633784
- Michael Ryan, M.DPulmonary Disease Physician1700863511
- Laura Slaughter, RN, FNP-CFamily Nurse Practitioner1245913383
Verify Gregory Scott Canfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A143074Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Central Coast Chest Consultants, A Medical CorporationSan Luis Obispo, CA
- J Trees Ritter, DO, IncSan Luis Obispo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Scott Canfield among 1,119 infectious disease physician records in California
Gregory Scott Canfield, M.D., PH.D. is one of 1,119 infectious disease physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 80% of them.
- NPI issued2014 · 80% of these records are older, 18% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2014 · median 2003 among the 735 with a school on file
- Record last updated2023 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California.
All 1,119 in California → Every provider in San Luis Obispo → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Hayley ClevelandSan Luis Obispo, CA 934011811428998
- Christopher Holland, M.D.San Luis Obispo, CA 934011063492031
- Jethro Ritter, D.O.San Luis Obispo, CA 934011457330797
- Franco Felizarta, MDBakersfield, CA 933891629004957
- Richard Prier, M.D.Templeton, CA 934651962409110
- Shankar Raman, MD,MPHBakersfield, CA 933111013988807
- Anthony Milanes, M.D.Bakersfield, CA 933091740292036
- Randolph Senining, MDBakersfield, CA 933091841216405
Common questions
What is Gregory Scott Canfield, M.D., PH.D.'s NPI number?
Gregory Scott Canfield, M.D., PH.D.'s National Provider Identifier (NPI) is 1144632159, issued on May 25, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Scott Canfield, M.D., PH.D. located?
The NPPES record lists a practice address at 1428 Phillips LN Ste 203, San Luis Obispo, CA, 93401. Phone: (805) 543-4407. Providers update this record themselves, so call before visiting.
How can I verify Gregory Scott Canfield, M.D., PH.D.'s license?
NPPES lists California license number A143074, 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.
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.