Tiffany Melissa Diament, M.D.
Psychiatry Physician · Valencia, CA
Tiffany Melissa Diament, M.D. is a psychiatry physician with a practice address in Valencia, California, and NPI 1487997128, issued on Apr 1, 2013. Check the license (California A134062, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tiffany Melissa Diament
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A134062 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23501 Cinema Dr Ste 200, Valencia, CA 91355
- Phone
- (661) 288-4800
- Enumerated
- Apr 1, 2013
- Record last updated
- Nov 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151106002296); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 23501 Cinema Dr Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexandra AdameClinical Social Worker1093112658
- Madison AquinoStudent in an Organized Health Care Education/Training Program1437022365
- Delia Barreto, LCSWClinical Social Worker1952587834
- Alexsey Chetverukhin, M.D.Psychiatry Physician1407951825
- Joshua CruzCase Manager/Care Coordinator1366021685
- Monica Escalante, RNPsychiatric/Mental Health Registered Nurse1043173446
Verify Tiffany Melissa Diament in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A134062Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average psychiatry physician in 2024
920 Medicare Part D claims for 62 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Quetiapine Fumarate74 claims
- Sertraline Hcl61 claims
- Lurasidone Hcl48 claims
- Fluoxetine Hcl47 claims
- Gabapentin44 claims
- Buspirone Hcl43 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
- Los Angeles County Department OF Mental HealthValencia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
Other psychiatry physician records in California
- Nancy Aaen, MDNapa, CA1609816669
- Criselda Abad-Santos, M.D.Woodland Hills, CA1760461826
- Mekabiz Abaian, MDSan Bernardino, CA1891090163
- Brenda Abarca, MDTorrance, CA1407485527
- Pilar Abascal, M.D.Los Angeles, CA1730528191
- Michele Abbasi, M.D.Westlake Village, CA1093940330
- Zohaib AbbasiMartinez, CA1013392224
- Sandy Abdelkedous, MDFresno, CA1306093109
- Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
- Ezzat Abdelmalek, M.DDana Point, CA1992828826
Common questions
What is Tiffany Melissa Diament, M.D.'s NPI number?
Tiffany Melissa Diament, M.D.'s National Provider Identifier (NPI) is 1487997128, issued on Apr 1, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Tiffany Melissa Diament, M.D. located?
The NPPES record lists a practice address at 23501 Cinema Dr Ste 200, Valencia, CA, 91355. Phone: (661) 288-4800. Providers update this record themselves, so call before visiting.
How can I verify Tiffany Melissa Diament, M.D.'s license?
NPPES lists California license number A134062, 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 Tiffany Melissa Diament, M.D. prescribe under Medicare Part D?
In 2024, Tiffany Melissa Diament, M.D. had 920 Medicare Part D claims for 62 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.