Hashem S. Dajani, MD
Nephrology Physician · Vallejo, CA
Hashem S. Dajani, MD is a nephrology physician with a practice address in Vallejo, California, and NPI 1174601918, issued on Nov 1, 2006. Check the license (California A66683, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Hashem S. Dajani
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A66683 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4300 Sonoma Blvd, Vallejo, CA 94589
- Phone
- (707) 685-7410
- Enumerated
- Nov 1, 2006
- Record last updated
- Mar 27, 2023
- Fax
- (707) 554-4481
- Medicaid ID
- 00A666830 CA
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 4300 Sonoma Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Callisa Cooper, PT, DPTPhysical Therapist1518397157
- Elizabeth Garcia, PHARM.D.Pharmacist1215937529
- Wayne Ogata, O.D.Optometrist1538100953
- Rodney Wollenslegel, RPHPharmacist1043621949
Verify Hashem S. Dajani in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A66683Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Hashem S. Dajani among 1,468 nephrology physician records in California
Hashem S. Dajani, MD is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 48% newer
- In a Medicare fileNo · 88% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2023 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in California
There are 1,468 nephrology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,468 in California → Every provider in Vallejo → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Waseem Ahmad, MDVallejo, CA 945891366520108
- Julia Krasner, MDVallejo, CA 945891225116056
- Maung Myint, MDVallejo, CA 945891841378676
- Kar Own, MDVallejo, CA 945891558449454
- Keyur Patel, MDVallejo, CA 945891942388772
- Caitlin Richardson-Royer, M.D.Vallejo, CA 945891922351881
- Maryam Sharif-Hassanabadi, M.D.Vallejo, CA 945891811287394
- Eric Lai, M.D.Pleasanton, CA 945881942592522
Common questions
What is Hashem S. Dajani, MD's NPI number?
Hashem S. Dajani, MD's National Provider Identifier (NPI) is 1174601918, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hashem S. Dajani, MD located?
The NPPES record lists a practice address at 4300 Sonoma Blvd, Vallejo, CA, 94589. Phone: (707) 685-7410. Providers update this record themselves, so call before visiting.
How can I verify Hashem S. Dajani, MD's license?
NPPES lists California license number A66683, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.