NPPES file of Aug 9, 2026

Leo Arthur Smith, MD

Family Medicine Physician · Santa Rosa, CA

Leo Arthur Smith, MD is a family medicine physician with a practice address in Santa Rosa, California, and NPI 1023265816, issued on Aug 22, 2008. Check the license (California A123645, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023265816
Name
Leo Arthur Smith
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
A123645 CA
LL17603 OR
Self-reported in NPPES; status is on the state search
Practice location
500 Doyle Park Dr, Santa Rosa, CA 95405
Phone
(707) 303-8360
Enumerated
Aug 22, 2008
Record last updated
Nov 26, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(707) 303-8361
Medicare enrollment
Enrolled (PECOS I20140311001318); accepts Medicare assignment
Medical or professional school
Oregon Health Sciences University School Of Medicine, 2006
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 500 Doyle Park Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nicholas Anton, MDInternal Medicine Physician1659364933
  2. Razi Arifuddin, MDGastroenterology Physician1124085410
  3. Chad Barylski, NP-C, RN, DC, DACBSPNurse Practitioner1932358553
  4. Joshua Beirne, M.D.Gastroenterology Physician1841216041
  5. George Bisbee, MDInternal Medicine Physician1235122516
  6. Deborah Britt, M.D.Pediatrics Physician1316959307

Verify Leo Arthur Smith in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A123645
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

72% more Medicare Part D claims than the average family medicine physician in 2024

6,095 Medicare Part D claims for 680 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 175 claims were for opioids.

  1. Leo Smith6,095
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium481 claims
  2. Levothyroxine Sodium320 claims
  3. Lisinopril170 claims
  4. Escitalopram Oxalate167 claims
  5. Amlodipine Besylate150 claims
  6. Simvastatin150 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.

Industry payments in 2024: $242.11

8 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Leo Smith$242.11
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Providence Medical FoundationSanta Rosa, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Leo Arthur Smith among 17,133 family medicine physician records in California

Leo Arthur Smith, MD is one of 17,133 family 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 53% of them.

  • NPI issued2008 · 53% of these records are older, 42% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2006 · median 2005 among the 10,652 with a school on file
  • Record last updated2013 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

264 family medicine physician records list a practice address in Santa Rosa

They are 264 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Herbert Brosbe, M.D.Santa Rosa, CA 954051518940519
  2. Forrest Chilcott, MDSanta Rosa, CA 954051841229689
  3. James Devore, MDSanta Rosa, CA 954051043273469
  4. Tabitha Doniach, M.D., PH.D.Santa Rosa, CA 954051952344616
  5. Gary Furness, MDSanta Rosa, CA 954051144281635
  6. Alvin Gore, MDSanta Rosa, CA 954051326042821
  7. Thomas Honrath, M.D.Santa Rosa, CA 954051093779845
  8. Catherine Johnsen, DOSanta Rosa, CA 954051801830724

Common questions

What is Leo Arthur Smith, MD's NPI number?

Leo Arthur Smith, MD's National Provider Identifier (NPI) is 1023265816, issued on Aug 22, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Leo Arthur Smith, MD located?

The NPPES record lists a practice address at 500 Doyle Park Dr, Santa Rosa, CA, 95405. Phone: (707) 303-8360. Providers update this record themselves, so call before visiting.

How can I verify Leo Arthur Smith, MD's license?

NPPES lists California license number A123645, 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 Leo Arthur Smith, MD prescribe under Medicare Part D?

In 2024, Leo Arthur Smith, MD had 6,095 Medicare Part D claims for 680 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.