DR. RALPH HEMERSON DE SIMILIEN (M.D.) – Psychiatry Physician, NPI 1013355676
Psychiatry Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for DR. RALPH HEMERSON DE SIMILIEN (M.D.)
705 MEMORY LN
WHITEHOUSE, TX 757913692
Phone: (281) 901-0940
Fax: (877) 910-0729
Type: Location
740 MIX AVE UNIT 407
HAMDEN, CT 065142287
Phone: (281) 901-0940
Fax: (877) 910-0729
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2020-01-17
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20200117001820 | I | Psychiatry | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 91 | 28 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 21 | 18 | $0 |
| 90792 | Psychiatric diagnostic evaluation with medical services | 16 | 15 | $0 |
Insurance plans in this area (ZIP 75791)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| P S Y C H I A T R Y | LA | |
| Pediatric Medicine, Pulmonary Disease | TX | |
| Nurse Practitioner | TX | |
| - | TX | |
| Clinical Psychologist | WA | |
| Nurse Practitioner | FL | |
| P S Y C H I A T R Y | TX | |
| - | TX | |
| E N D O C R I N O L O G Y | TX | |
| - | TX |
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