Julia Ridgeway-Diaz, MD
Psychiatry Physician · Houston, TX
Julia Ridgeway-Diaz, MD is a psychiatry physician with a practice address in Houston, Texas, and NPI 1811351901, issued on Apr 5, 2016. Check the license (Texas S4558, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Julia Ridgeway-Diaz
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- S4558 TX
Self-reported in NPPES; status is on the state search - Practice location
- 12301 Main St, Houston, TX 77035
- Phone
- (713) 275-5432
- Enumerated
- Apr 5, 2016
- Record last updated
- Sep 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 3,318 in Texas → Look up another NPI →
Also registered at 12301 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Arango, L.C.S.W.Clinical Social Worker1073753075
- Elizabeth Arco, LMSWSocial Worker1003536293
- Miriam Arnold, PHDPsychologist1053817684
- Mercy Babo, LMSWSocial Worker1831972470
- Damaris BanegasBehavior Technician1548147705
- Megan Bendig, LCSWClinical Social Worker1043764046
Verify Julia Ridgeway-Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license S4558Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average psychiatry physician in 2024
61 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Methylphenidate Hcl12 claims
- Aripiprazole11 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.
Julia Ridgeway-Diaz among 3,318 psychiatry physician records in Texas
Julia Ridgeway-Diaz, 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 2016, is newer than 73% of them.
- NPI issued2016 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2021 · 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
- Robert Boland, MDHouston, TX 770351770548315
- C. Edward Coffey, M.D.Houston, TX 770351942360813
- Joyce Davidson, MDHouston, TX 770351760562102
- Sean Hurdiss, M.D.Houston, TX 770351992114201
- Tara Lemens, MDHouston, TX 770351831727072
- Deborah Lin, MDHouston, TX 770351841810819
- Michael McClam, M. D.Houston, TX 770351750461505
- Elizabeth Newlin, MDHouston, TX 770351942347349
Common questions
What is Julia Ridgeway-Diaz, MD's NPI number?
Julia Ridgeway-Diaz, MD's National Provider Identifier (NPI) is 1811351901, issued on Apr 5, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Julia Ridgeway-Diaz, MD located?
The NPPES record lists a practice address at 12301 Main St, Houston, TX, 77035. Phone: (713) 275-5432. Providers update this record themselves, so call before visiting.
How can I verify Julia Ridgeway-Diaz, MD's license?
NPPES lists Texas license number S4558, 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 Julia Ridgeway-Diaz, MD prescribe under Medicare Part D?
In 2024, Julia Ridgeway-Diaz, MD had 61 Medicare Part D claims; 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.