Manlio Sinai Hernandez-Castillo, M.D.
Hospitalist Physician · Eureka, CA
Manlio Sinai Hernandez-Castillo, M.D. is a hospitalist physician with a practice address in Eureka, California, and NPI 1093334385, issued on Apr 16, 2020. Check the license (California A186577, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Manlio Sinai Hernandez-Castillo
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A186577 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2700 Dolbeer St., Eureka, CA 95501
- Phone
- (707) 445-8121
- Enumerated
- Apr 16, 2020
- Record last updated
- Sep 5, 2023
- Medicare enrollment
- Enrolled (PECOS I20231020001127); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Verify Manlio Sinai Hernandez-Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A186577Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average hospitalist physician in 2024
245 Medicare Part D claims for 94 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass15 claims
- Pantoprazole Sodium13 claims
- Tamsulosin Hcl12 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
- Providence Medical FoundationEureka, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Manlio Sinai Hernandez-Castillo among 3,099 hospitalist physician records in California
Manlio Sinai Hernandez-Castillo, M.D. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 85% of them.
- NPI issued2020 · 85% of these records are older, 10% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2015 · median 2010 among the 2,505 with a school on file
- Record last updated2023 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Eureka → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Gerald Buntin, M.D.Eureka, CA 955011043478456
- Lisa Crabtree, DOEureka, CA 955011154828747
- Manuel Lewis, DOEureka, CA 955011932604261
- Sean Purtell, MDEureka, CA 955011609432434
- Snehamayi Ramayanam, MDEureka, CA 955011952925588
- Prabhat Shrestha, MDEureka, CA 955011629573365
- Jorge Allende, M.D.Ukiah, CA 954821619970068
- Fadi Arodaki, DOUkiah, CA 954821720499023
Common questions
What is Manlio Sinai Hernandez-Castillo, M.D.'s NPI number?
Manlio Sinai Hernandez-Castillo, M.D.'s National Provider Identifier (NPI) is 1093334385, issued on Apr 16, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Manlio Sinai Hernandez-Castillo, M.D. located?
The NPPES record lists a practice address at 2700 Dolbeer St., Eureka, CA, 95501. Phone: (707) 445-8121. Providers update this record themselves, so call before visiting.
How can I verify Manlio Sinai Hernandez-Castillo, M.D.'s license?
NPPES lists California license number A186577, 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 Manlio Sinai Hernandez-Castillo, M.D. prescribe under Medicare Part D?
In 2024, Manlio Sinai Hernandez-Castillo, M.D. had 245 Medicare Part D claims for 94 beneficiaries; the average among hospitalist physician prescribers was 521. 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.