Yosef Diab, MD
Internal Medicine Physician · Santa Maria, CA
Yosef Diab, MD is an internal medicine physician with a practice address in Santa Maria, California, and NPI 1053948026, issued on Mar 26, 2020. Check the license (California A186325, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Yosef Diab
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A186325 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1400 E Church St, Santa Maria, CA 93454
- Phone
- (805) 475-3640
- Enumerated
- Mar 26, 2020
- Record last updated
- Aug 29, 2023
- Medicare enrollment
- Enrolled (PECOS I20230915002795); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1400 E Church St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elena Agafonova, M.D.Internal Medicine Physician1558757666
- Alyse Andrade, RN IBCLCLactation Consultant (Registered Nurse)1104647403
- Steven Andrews, PAPhysician Assistant1083352397
- Andrea ArthoferStudent in an Organized Health Care Education/Training Program1225772973
- Hannah Barrows, PA-CPhysician Assistant1528747128
- Nader Batal, DOFamily Medicine Physician1740923135
Verify Yosef Diab in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A186325Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
264 Medicare Part D claims for 129 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass23 claims
- Furosemide17 claims
- Albuterol Sulfate Hfa12 claims
- Amlodipine Besylate12 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
- Central Coast IN-Patient Consultants IncArroyo Grande, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yosef Diab among 17,696 internal medicine physician records in California
Yosef Diab, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 89% of them.
- NPI issued2020 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Santa Maria → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Elena Agafonova, M.D.Santa Maria, CA 934541558757666
- Mohammad Arain, M.D.Santa Maria, CA 934541639167158
- Nicandro Castaneda, M.D.Santa Maria, CA 934541578595245
- Hugh Hatfield, M. D.Santa Maria, CA 934541356360218
- Albert Hawkins, MDSanta Maria, CA 934541588664478
- Siri Atma Khalsa, MDSanta Maria, CA 934541073701785
- Ahmad Nooristani, M.D.Santa Maria, CA 934541659537306
- Elham Novin Baheran, MDSanta Maria, CA 934541245432897
Common questions
What is Yosef Diab, MD's NPI number?
Yosef Diab, MD's National Provider Identifier (NPI) is 1053948026, issued on Mar 26, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Yosef Diab, MD located?
The NPPES record lists a practice address at 1400 E Church St, Santa Maria, CA, 93454. Phone: (805) 475-3640. Providers update this record themselves, so call before visiting.
How can I verify Yosef Diab, MD's license?
NPPES lists California license number A186325, 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 Yosef Diab, MD prescribe under Medicare Part D?
In 2024, Yosef Diab, MD had 264 Medicare Part D claims for 129 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.