Ian Glen Ferguson, D.O.
Emergency Medicine Physician · Stanford, CA
Ian Glen Ferguson, D.O. is an emergency medicine physician with a practice address in Stanford, California, and NPI 1265495345, issued on Apr 10, 2006. Check the license (California 20A6890, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ian Glen Ferguson
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 20A6890 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Apr 10, 2006
- Record last updated
- Jun 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 00AX68900 CA
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ian Glen Ferguson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A6890Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average emergency medicine physician in 2024
90 Medicare Part D claims for 77 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 34 claims were for opioids.
Most prescribed
- Tramadol Hcl27 claims
- Cephalexin16 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 94.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Ian Glen Ferguson among 7,751 emergency medicine physician records in California
Ian Glen Ferguson, D.O. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2016 · 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 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
163 emergency medicine physician records list a practice address in Stanford
They are 163 of the 5,606 NPPES records with a practice address in Stanford, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Stanford → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Milana Boukhman, MDStanford, CA 943051902863210
- Ian Brown, MDStanford, CA 943051851320451
- Marc Gautreau, MDStanford, CA 943051932182185
- David Ghilarducci, MDStanford, CA 943051861435661
- Michael Gisondi, MDStanford, CA 943051659317121
- Prasanthi Govindarajan, MDStanford, CA 943051205879517
- Grant Lipman, M.DStanford, CA 943051255374005
- Pravene Nath, M.D.Palo Alto, CA 943051891788527
Common questions
What is Ian Glen Ferguson, D.O.'s NPI number?
Ian Glen Ferguson, D.O.'s National Provider Identifier (NPI) is 1265495345, issued on Apr 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ian Glen Ferguson, D.O. located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Ian Glen Ferguson, D.O.'s license?
NPPES lists California license number 20A6890, 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 Ian Glen Ferguson, D.O. prescribe under Medicare Part D?
In 2024, Ian Glen Ferguson, D.O. had 90 Medicare Part D claims for 77 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Ian Glen Ferguson, D.O.'s MIPS final score?
The 2023 MIPS final score is 94.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.