Mark Harold Luoto, MD
Emergency Medicine Physician · Watsonville, CA
Mark Harold Luoto, MD is an emergency medicine physician with a practice address in Watsonville, California, and NPI 1932158854, issued on May 8, 2006. Check the license (California G42040, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Harold Luoto
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G42040 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1505 Main St, Watsonville, CA 95076
- Phone
- (831) 722-1444
- Enumerated
- May 8, 2006
- Record last updated
- Sep 16, 2022
- Entity
- Type 1 · individual
Also registered at 1505 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alejandro Alvarez-BautistaPhysician Assistant1164181848
- Tye Depena, M.D.Family Medicine Physician1467459735
- Emma EcclesPhysician Assistant1750189650
- Daniel Johnson, PA-C, L.AC.Medical Physician Assistant1508151572
- Mercy Rose, NP-CPrimary Care Nurse Practitioner1992980742
- William Tong, M.D.General Practice Physician1457354110
Verify Mark Harold Luoto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G42040Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average emergency medicine physician in 2024
172 Medicare Part D claims for 112 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Monohydrate24 claims
- Albuterol Sulfate Hfa20 claims
- Cefuroxime18 claims
- Prednisone16 claims
- Cefadroxil15 claims
- Amoxicillin-Clavulanate Potass13 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): 84.6 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).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
Other emergency medicine physician records in California
- Cooper Aakhus, MDStanford, CA1194351007
- Pyra Aarden, MDMartinez, CA1417058199
- Neal Aaron, D.O.Encinitas, CA1114283520
- Eric AaserudeWalnut Creek, CA1811491194
- Nader Abas, MDBarstow, CA1346288305
- Michael Abbo, MDNovato, CA1205819042
- Daniel Abbott, MDFullerton, CA1518907864
- Paul-Andre Abboud, M.D.Oakland, CA1710065503
- Mostafa Abdel-Hamid, MDStanford, CA1457918740
- Ashraf Abdel-KerimChino, CA1396961538
Common questions
What is Mark Harold Luoto, MD's NPI number?
Mark Harold Luoto, MD's National Provider Identifier (NPI) is 1932158854, issued on May 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Harold Luoto, MD located?
The NPPES record lists a practice address at 1505 Main St, Watsonville, CA, 95076. Phone: (831) 722-1444. Providers update this record themselves, so call before visiting.
How can I verify Mark Harold Luoto, MD's license?
NPPES lists California license number G42040, 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 Mark Harold Luoto, MD prescribe under Medicare Part D?
In 2024, Mark Harold Luoto, MD had 172 Medicare Part D claims for 112 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Mark Harold Luoto, MD's MIPS final score?
The 2023 MIPS final score is 84.6 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.