Alejandro Saul Casillas, M.D.
Emergency Medicine Physician · Ukiah, CA
Alejandro Saul Casillas, M.D. is an emergency medicine physician with a practice address in Ukiah, California, and NPI 1376707919, issued on Jul 14, 2008. Check the license (California A114918, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alejandro Saul Casillas
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A114918 CA
Self-reported in NPPES; status is on the state search - Practice location
- 275 Hospital Dr, Ukiah, CA 95482
- Phone
- (707) 462-7900
- Enumerated
- Jul 14, 2008
- Record last updated
- Feb 11, 2022
- Fax
- (707) 462-7947
- Medicare enrollment
- Enrolled (PECOS I20110808000560); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 275 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fadi Arodaki, DOHospitalist Physician1720499023
- Erin Bainbridge, N.P.Family Nurse Practitioner1104368729
- Rachel Barber, F.N.P.Nurse Practitioner1518248970
- Lillian Basner, FNPNurse Practitioner1750321972
- Donald Bond, PHARMD, RPHPharmacist1679946446
- Roger Cheitlin, MDInternal Medicine Physician1881643732
Verify Alejandro Saul Casillas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A114918Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% more Medicare Part D claims than the average emergency medicine physician in 2024
344 Medicare Part D claims for 218 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 49 claims were for opioids.
Most prescribed
- Ondansetron Odt32 claims
- Hydrocodone-Acetaminophen30 claims
- Prednisone28 claims
- Doxycycline Monohydrate18 claims
- Tizanidine Hcl17 claims
- Amoxicillin-Clavulanate Potass15 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
- Permanente Medical Group IncSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alejandro Saul Casillas among 7,751 emergency medicine physician records in California
Alejandro Saul Casillas, M.D. 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 fileYes · 59% of these records are
- Graduated2008 · median 2011 among the 4,560 with a school on file
- Record last updated2022 · 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).
12 emergency medicine physician records list a practice address in Ukiah
They are 12 of the 1,439 NPPES records with a practice address in Ukiah, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Ukiah → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Kelsey Coolahan, MDUkiah, CA 954821669054334
- Charlie Evans, MDUkiah, CA 954821104875475
- Gary Fausone, MDUkiah, CA 954821316997737
- Megan Forbes, MDUkiah, CA 954821578213930
- Ronald Gester, MDUkiah, CA 954821043335664
- Debbie Marks, MDUkiah, CA 954821447231220
- Melissa Murray, MDUkiah, CA 954821871090878
- Avery Newcomb, MDUkiah, CA 954821780212886
Common questions
What is Alejandro Saul Casillas, M.D.'s NPI number?
Alejandro Saul Casillas, M.D.'s National Provider Identifier (NPI) is 1376707919, issued on Jul 14, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Alejandro Saul Casillas, M.D. located?
The NPPES record lists a practice address at 275 Hospital Dr, Ukiah, CA, 95482. Phone: (707) 462-7900. Providers update this record themselves, so call before visiting.
How can I verify Alejandro Saul Casillas, M.D.'s license?
NPPES lists California license number A114918, 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 Alejandro Saul Casillas, M.D. prescribe under Medicare Part D?
In 2024, Alejandro Saul Casillas, M.D. had 344 Medicare Part D claims for 218 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.