Hatem Mezher
Nephrology Physician · Santa Maria, CA
Hatem Mezher is a nephrology physician with a practice address in Santa Maria, California, and NPI 1467716274, issued on Jun 26, 2012. Check the license (California A134355, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hatem Mezher
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A134355 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1505 Shepard Dr Ste 103, Santa Maria, CA 93454
- Phone
- (718) 613-4000
- Enumerated
- Jun 26, 2012
- Entity
- Type 1 · individual
Also registered at 1505 Shepard Dr Ste 103
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Arashdeep Poonia, M.D.Nephrology Physician1417235672
Verify Hatem Mezher in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A134355Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
5% more Medicare Part D claims than the average nephrology physician in 2024
1,587 Medicare Part D claims for 236 beneficiaries, against an average of 1,511 among the 8,473 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Sevelamer Carbonate156 claims
- Hydralazine Hcl146 claims
- Amlodipine Besylate120 claims
- Calcium Acetate106 claims
- Furosemide94 claims
- Prednisone83 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.
The practice group's Medicare quality score for 2023: 94.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital or facility affiliation
- Santa Maria Nephrology Medical GroupSanta Maria, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Nephrology Physician providers in California
There are 1,165 nephrology physician records in California.
Other nephrology physician records in California
- Antoine Abcar, MDLos Angeles, CA1245301159
- Basmah Abdalla, M.D.Los Angeles, CA1629394002
- Omaran Abdeen, M.D.Mission Hills, CA1700878410
- Anas Abou-Ismail, MDPalm Springs, CA1598078784
- Sreedhar Adapa, M.D.Visalia, CA1881997872
- Gbemisola Adenuga, M.D.Los Angeles, CA1952464661
- Adegbenga Adetola, MDLynwood, CA1881776219
- Judy Adler, M.D.San Diego, CA1326043894
- Sharon Adler, M.D.Torrance, CA1467431122
- Maryam Afkarian, M.D., PH.D.Sacramento, CA1255387338
Common questions
What is Hatem Mezher's NPI number?
Hatem Mezher's National Provider Identifier (NPI) is 1467716274, issued on Jun 26, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Hatem Mezher located?
The NPPES record lists a practice address at 1505 Shepard Dr Ste 103, Santa Maria, CA, 93454. Phone: (718) 613-4000. Providers update this record themselves, so call before visiting.
How can I verify Hatem Mezher's license?
NPPES lists California license number A134355, 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 Hatem Mezher prescribe under Medicare Part D?
In 2024, Hatem Mezher had 1,587 Medicare Part D claims for 236 beneficiaries; the average among nephrology physician prescribers was 1,511. Part D covers Medicare prescriptions only.
What is Hatem Mezher's Medicare quality score?
The 2023 MIPS final score is 94.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.