James Preston Smithson, MD
Emergency Medicine Physician · San Diego, CA
James Preston Smithson, MD is an emergency medicine physician with a practice address in San Diego, California, and NPI 1720248768, issued on Jun 12, 2008. Check the license (California A100174, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Preston Smithson
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A100174 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Arbor Dr, San Diego, CA 92103
- Phone
- (619) 543-6737
- Enumerated
- Jun 12, 2008
- Record last updated
- Nov 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 200 W Arbor Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kristy AbelCertified Registered Nurse Anesthetist1962113035
- Paula Abeleda, NPFamily Nurse Practitioner1558945022
Verify James Preston Smithson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A100174Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% more Medicare Part D claims than the average emergency medicine physician in 2024
374 Medicare Part D claims for 222 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 65 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen51 claims
- Lactulose34 claims
- Cefpodoxime Proxetil30 claims
- Ondansetron Odt24 claims
- Ibuprofen22 claims
- Cephalexin18 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.
James Preston Smithson among 7,751 emergency medicine physician records in California
James Preston Smithson, 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 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2021 · 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).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in San Diego → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Carolyn Barber, MDSan Diego, CA 921031750325502
- Anthony Bielawski, M.D.San Diego, CA 921031528038346
- Colleen Campbell, MDSan Diego, CA 921031669416483
- Richard Childers, M.D.San Diego, CA 921031902876220
- Michelle Daniel, MDSan Diego, CA 921031801879861
- Julian Lis, M.D.San Diego, CA 921031932100062
- Leslie Mukau, MDSan Diego, CA 921031578526026
- Sassan Naderi, M.D.San Diego, CA 921031811987936
Common questions
What is James Preston Smithson, MD's NPI number?
James Preston Smithson, MD's National Provider Identifier (NPI) is 1720248768, issued on Jun 12, 2008. An NPI identifies a provider in billing; it is not a license.
Where is James Preston Smithson, MD located?
The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (619) 543-6737. Providers update this record themselves, so call before visiting.
How can I verify James Preston Smithson, MD's license?
NPPES lists California license number A100174, 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 James Preston Smithson, MD prescribe under Medicare Part D?
In 2024, James Preston Smithson, MD had 374 Medicare Part D claims for 222 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.