Raffi Merjanian, MD
Nephrology Physician · Bellflower, CA
Raffi Merjanian, MD is a nephrology physician with a practice address in Bellflower, California, and NPI 1649347477, issued on Nov 29, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Raffi Merjanian
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- Practice location
- 9400 Rosecrans Ave, Bellflower, CA 90706
- Phone
- (562) 461-3000
- Enumerated
- Nov 29, 2006
- Entity
- Type 1 · individual
Also registered at 9400 Rosecrans Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Basil Abdelkarim, MDInternal Medicine Physician1003968454
- Le Marie Abellon, NPNurse Practitioner1144389867
- Adrian Acevedo, MDEmergency Medicine Physician1407923303
- Pravin Acharya, MDEmergency Medicine Physician1104993088
- Michele Afshar, PAPhysician Assistant1013065952
- Maria Agbing-Mamangun, MDPsychiatry Physician1063589984
Verify Raffi Merjanian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
30% more Medicare Part D claims than the average nephrology physician in 2024
1,964 Medicare Part D claims for 341 beneficiaries, against an average of 1,511 among the 8,473 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium260 claims
- Amlodipine Besylate243 claims
- Atorvastatin Calcium144 claims
- Furosemide116 claims
- Jardiance95 claims
- Calcitriol94 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.
One hospital or facility affiliation
- Southern California Permanente Medical GroupDowney, 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 Raffi Merjanian, MD's NPI number?
Raffi Merjanian, MD's National Provider Identifier (NPI) is 1649347477, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Raffi Merjanian, MD located?
The NPPES record lists a practice address at 9400 Rosecrans Ave, Bellflower, CA, 90706. Phone: (562) 461-3000. Providers update this record themselves, so call before visiting.
How can I verify Raffi Merjanian, MD's license?
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 Raffi Merjanian, MD prescribe under Medicare Part D?
In 2024, Raffi Merjanian, MD had 1,964 Medicare Part D claims for 341 beneficiaries; the average among nephrology physician prescribers was 1,511. Part D covers Medicare prescriptions only.
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.