Lisa Ditomaso, DO
Emergency Medicine Physician · Yreka, CA
Lisa Ditomaso, DO is an emergency medicine physician with a practice address in Yreka, California, and NPI 1750843397, issued on Apr 2, 2019. Check the license (California 20A19666, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lisa Ditomaso
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 20A19666 CA
DO228382 OR
Self-reported in NPPES; status is on the state search - Practice location
- 444 Bruce St, Yreka, CA 96097
- Phone
- (530) 841-6292
- Enumerated
- Apr 2, 2019
- Record last updated
- Jul 1, 2026
- Medicare enrollment
- Enrolled (PECOS I20221118002684); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2019
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 444 Bruce St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samuel BirkholzCertified Registered Nurse Anesthetist1558873786
- Larry Blazier, RNFARegistered Nurse First Assistant1104085265
- Sharon Dawson, CRNFARegistered Nurse First Assistant1336261890
- Teresa Dunton, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1174092944
- Madison Feller, CCC-SLPSpeech-Language Pathologist1487275848
- Gakwaya Habiyaremye, MDInternal Medicine Physician1255828869
Verify Lisa Ditomaso in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A19666Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average emergency medicine physician in 2024
100 Medicare Part D claims for 74 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Sulfamethoxazole-Trimethoprim14 claims
- Prednisone12 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.
Bills Medicare through one group practice
- Trinity Emergency PhysiciansStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lisa Ditomaso among 7,751 emergency medicine physician records in California
Lisa Ditomaso, DO 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 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2019 · median 2011 among the 4,560 with a school on file
- 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).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Yreka → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Peter Beoris, MDYreka, CA 960971114030863
- Jennifer Hall, MDYreka, CA 960971629117668
- John Tribble, M.D.Yreka, CA 960971518164474
- Henry Edelstein, M.D.Weaverville, CA 960931962599886
- Julie Helms-Schue, M.D.Weaverville, CA 960931548588973
- William Sommers, D.O.Weaverville, CA 960931417273202
- Eric Rudnick, M.D.Red Bluff, CA 960801821462938
- Richard Harvey, M.D.Markleeville, CA 961201023038924
Common questions
What is Lisa Ditomaso, DO's NPI number?
Lisa Ditomaso, DO's National Provider Identifier (NPI) is 1750843397, issued on Apr 2, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Lisa Ditomaso, DO located?
The NPPES record lists a practice address at 444 Bruce St, Yreka, CA, 96097. Phone: (530) 841-6292. Providers update this record themselves, so call before visiting.
How can I verify Lisa Ditomaso, DO's license?
NPPES lists California license number 20A19666, 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 Lisa Ditomaso, DO prescribe under Medicare Part D?
In 2024, Lisa Ditomaso, DO had 100 Medicare Part D claims for 74 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.