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DR. THALIA N CASIMIRE MD
NPI 1467650507
Internal Medicine - Critical Care Medicine in Houston, TX

Active since July 10, 2007PECOS EnrolledAccepts Medicare Assignment
13300 HARGRAVE RD STE 100, HOUSTON, TX 77070(281) 357-0111(281) 255-9639 Get Directions Write a Review

NPPES record last updated: July 22, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 3, 2025, Sep 16, 2022, Jul 21, 2022 and 4 more (7 updates tracked since 2016).

About Dr. Thalia N Casimire Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. THALIA N CASIMIRE MD (NPI 1467650507) is an individual critical care medicine provider in Houston, Texas, licensed in Texas (Q6813) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS, is affiliated with Christus Mother Frances Hospital, and is a graduate of Other (2004).

NPPES Registry Identity

NPI1467650507
Entity TypeIndividualFemale
Primary Taxonomy207RC0200X
Provider Legal NameDR. THALIA N CASIMIRECredential: MD
Location Address13300 HARGRAVE RD STE 100Houston, TX 77070-4532
Mailing Address13300 Hargrave Rd Ste 100Houston, TX 77070-4532 · (281) 357-0111 · Fax (281) 255-9639
Phone(281) 357-0111
Fax(281) 255-9639
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateJuly 10, 2007
Last NPPES UpdateJuly 22, 20257 updates tracked since enumeration
NPPES CertifiedJuly 22, 2025
✔ NPI 1467650507 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
Licenses✔ Licensed in TX · Q6813✔ Licensed in AR · E8410
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedInternal MedicineTaxonomy 207R00000X · License Q6813 (TX)
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License E-8410 (AR)
Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License E-8410 (AR)
13300 HARGRAVE RD STE 100, Houston, TX 77070
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Other Identifiers 2

Medicaid372873501TX
Medicaid204394001AR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Community Health Choice and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thalia N Casimire Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6507085271
PECOS Enrollment IDI20170629002048
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
244 services128 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
69 services54 patients
Sleep study in sleep lab (6 years or older) 95810
A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.
17 services17 patients
Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811
A sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.
15 services15 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Christus Mother Frances Hospital

Acute Care Hospitals · Tyler, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450102
Location800 East DawsonTyler, TX 75701 · Smith County
Emergency services Birthing friendly

Houston Methodist Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450358
Location6565 FanninHouston, TX 77030 · Harris County
Emergency services Birthing friendly

Houston Methodist Willowbrook Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450844
Location18220 State Highway 249Houston, TX 77070 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77070 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 22

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
11 suppliers77 claims77 services$32.54 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
13 suppliers88 claims88 services$74.39 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
13 suppliers89 claims250 services$29.00 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
6 suppliers21 claims124 services$17.20 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
9 suppliers33 claims192 services$13.04 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
10 suppliers59 claims59 services$51.27 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thalia Casimire's NPI number?

The NPI number for Thalia Casimire is 1467650507. It was assigned to this individual provider in the NPPES registry on July 10, 2007.

Where is Thalia Casimire located?

Thalia Casimire practices at 13300 Hargrave Rd Ste 100, Houston, TX 77070. The listed phone number is (281) 357-0111.

What is Thalia Casimire's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Thalia Casimire enrolled in Medicare?

Yes. Thalia Casimire is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Thalia Casimire accept?

Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Community Health Choice, Molina Healthcare and Oscar Insurance Company and 1 other insurer list Thalia Casimire as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Thalia Casimire affiliated with any hospitals?

According to CMS data, Thalia Casimire is affiliated with Christus Mother Frances Hospital, Houston Methodist Hospital and Houston Methodist Willowbrook Hospital.

When was this NPI record last updated?

The NPPES record for Thalia Casimire was last updated on July 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.