Zishan A. Samiuddin, MD
Psychiatry Physician · Houston, TX
Zishan A. Samiuddin, MD is a psychiatry physician with a practice address in Houston, Texas, and NPI 1205819091, issued on Nov 25, 2005. Check the license (Texas J2298, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Zishan A. Samiuddin
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- J2298 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1415 California St, Houston, TX 77006
- Phone
- (281) 420-8400
- Enumerated
- Nov 25, 2005
- Record last updated
- Oct 12, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (713) 523-4897
- Medicaid ID
- 1220675-02 TX
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 3,318 in Texas → Look up another NPI →
Also registered at 1415 California St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dawn Adams, MDInternal Medicine Physician1710974290
- Virginia Allen, MDChild & Adolescent Psychiatry Physician1801090212
- Judith AlvaradoProfessional Counselor1629503313
- Jeannie Banh, D.O.Family Medicine Physician1407293046
- Leyla Baran Akce, M.D.Psychiatry Physician1457641813
- Anika Barber, FNP-BCFamily Nurse Practitioner1659609097
Verify Zishan A. Samiuddin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J2298Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average psychiatry physician in 2024
366 Medicare Part D claims for 70 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Bupropion Xl64 claims
- Fluoxetine Hcl26 claims
- Lamotrigine25 claims
- Alprazolam22 claims
- Ziprasidone Hcl22 claims
- Duloxetine Hcl20 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.
Zishan A. Samiuddin among 3,318 psychiatry physician records in Texas
Zishan A. Samiuddin, MD is one of 3,318 psychiatry physician records with a practice address in Texas. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2016 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Texas
There are 3,318 psychiatry physician records in Texas.
All 3,318 in Texas → Every provider in Houston → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Holly Crisp, M.D.Houston, TX 770061619108883
- Ricardo Delcid, MDHouston, TX 770061023349867
- Gabrielle Hobday, M.D.Houston, TX 770061992954846
- Tayfun Karakoc, M.D.Houston, TX 770061265487904
- Stephanie Kwok, MDHouston, TX 770061861656704
- Chad Lemaire, MDHouston, TX 770061235392432
- Michael Lesem, MDHouston, TX 770061871605998
- Nathalie Marie, MDHouston, TX 770061730354812
Common questions
What is Zishan A. Samiuddin, MD's NPI number?
Zishan A. Samiuddin, MD's National Provider Identifier (NPI) is 1205819091, issued on Nov 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Zishan A. Samiuddin, MD located?
The NPPES record lists a practice address at 1415 California St, Houston, TX, 77006. Phone: (281) 420-8400. Providers update this record themselves, so call before visiting.
How can I verify Zishan A. Samiuddin, MD's license?
NPPES lists Texas license number J2298, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Zishan A. Samiuddin, MD prescribe under Medicare Part D?
In 2024, Zishan A. Samiuddin, MD had 366 Medicare Part D claims for 70 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.