Ian Edwin Doig, MD
Emergency Medicine Physician · Vacaville, CA
Ian Edwin Doig, MD is an emergency medicine physician with a practice address in Vacaville, California, and NPI 1033850334, issued on Apr 2, 2022. Check the license (California A208553, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ian Edwin Doig
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A208553 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Quality Dr, Vacaville, CA 95688
- Phone
- (170) 762-4400
- Enumerated
- Apr 2, 2022
- Record last updated
- Aug 5, 2026
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1 Quality Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ian Edwin Doig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A208553Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average emergency medicine physician in 2024
70 Medicare Part D claims for 46 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
Ian Edwin Doig among 7,751 emergency medicine physician records in California
Ian Edwin Doig, MD 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 2022, is newer than 95% of them.
- NPI issued2022 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2026 · 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).
20 emergency medicine physician records list a practice address in Vacaville
They are 20 of the 1,903 NPPES records with a practice address in Vacaville, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Vacaville → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Maricel Romelia Dela CruzVacaville, CA 956881396004032
- Nathan Finch, MDVacaville, CA 956881578060547
- Melissa Gaspar, MDVacaville, CA 956881588291496
- Anisa Heravian, M.D.Vacaville, CA 956881861768947
- Aileen Jaber, MDVacaville, CA 956881497807614
- Amanda Jackson, MDVacaville, CA 956881386141844
- Thomas Keown, MDVacaville, CA 956881992368781
- Joshua Kessack, D.O.Vacaville, CA 956881629503180
Common questions
What is Ian Edwin Doig, MD's NPI number?
Ian Edwin Doig, MD's National Provider Identifier (NPI) is 1033850334, issued on Apr 2, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Ian Edwin Doig, MD located?
The NPPES record lists a practice address at 1 Quality Dr, Vacaville, CA, 95688. Phone: (170) 762-4400. Providers update this record themselves, so call before visiting.
How can I verify Ian Edwin Doig, MD's license?
NPPES lists California license number A208553, 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 Edwin Doig, MD prescribe under Medicare Part D?
In 2024, Ian Edwin Doig, MD had 70 Medicare Part D claims for 46 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
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.