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: July 19, 2026.

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

  • Individual
  • Female
  • Years of Experience 23
  • Internal Medicine
  • Critical Care Medicine
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About THALIA CASIMIRE

This page provides the complete NPI Profile along with additional information for Thalia Casimire, an internist established in Houston, Texas with a medical specialization in Internal Medicine, focusing in critical care medicine and more than 23 years of experience. The healthcare provider is registered in the NPI registry with number 1467650507 assigned on July 2007. The practitioner's primary taxonomy code is 207RC0200X with license number Q6813 (TX). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1467650507 Verify this NPI
Provider Name
DR. THALIA N CASIMIRE MD
Gender
Female
Entity Type
Individual
Location Address
13300 HARGRAVE RD STE 100 HOUSTON, TX 77070
Location Phone
(281) 357-0111
Location Fax
(281) 255-9639
Mailing Address
13300 HARGRAVE RD STE 100 HOUSTON, TX 77070
Mailing Phone
(281) 357-0111
Mailing Fax
(281) 255-9639
Medical School Name
OTHER
Graduation Year
2004
Is Sole Proprietor?
No
Enumeration Date
07-10-2007
Last Update Date
07-22-2025
Code Navigator

An internist like Thalia Casimire is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Secondary Locations

  • One Mercy Lane Ste 401
    Hot Springs, AR 71913
    (501) 623-5220
  • 18220 State Highway 249 Ste 1360
    Houston, TX 77070
    (281) 737-8300
  • 700 Scott and White Dr
    College Station, TX 77845
    (979) 207-0100
  • 619 S Fleishel Ave Ste 100
    Tyler, TX 75701
    (903) 606-2830

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine Critical Care Medicine

Taxonomy Code
207RC0200X
Type
Allopathic & Osteopathic Physicians
License No.
Q6813
License State
TX
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

Q6813 (TX)
2207RC0200XAllopathic & Osteopathic Physicians

Internal Medicine
Critical Care Medicine

E8410 (AR)
3207RP1001XAllopathic & Osteopathic Physicians

Internal Medicine
Pulmonary Disease

E-8410 (AR)
4207RS0012XAllopathic & Osteopathic Physicians

Internal Medicine
Sleep Medicine

E-8410 (AR)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Blue Advantage Bronze HMO? 204 - HMO
  • Blue Advantage Bronze HMO? 301 - HMO
  • Blue Advantage Bronze HMO? Standard - HMO
  • Blue Advantage Gold HMO? 206 - HMO
  • Blue Advantage Gold HMO? 603 - HMO
  • Blue Advantage Gold HMO? Standard - HMO
  • Blue Advantage Plus Bronze? 303 - POS
  • Blue Advantage Plus Bronze? 305 - POS
  • Blue Advantage Plus Bronze? Standard - POS
  • Blue Advantage Plus Gold? 203 - POS
  • CHRISTUS Bronze (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
  • CHRISTUS Bronze + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
  • CHRISTUS Bronze Essential - HMO
  • CHRISTUS Bronze Essential (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
  • CHRISTUS Bronze Essential + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
  • CHRISTUS Bronze Essential Plus - HMO
  • CHRISTUS Catastrophic (3 Free PCP visits) - HMO
  • CHRISTUS Gold - HMO
  • CHRISTUS Gold + Dental & Vision + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) - HMO
  • CHRISTUS Gold + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) - HMO
  • Community Premier Gold 005 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Community Premier Gold 021 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Community Premier Silver 012 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Community Premier Silver 020 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Molina Gold Core 1640 - HMO
  • Molina Gold Core 1640 Plus with Adult Dental and Vision - HMO
  • Molina Gold Core 1640 Plus with Adult Vision - HMO
  • Molina Gold Saver 750 - HMO
  • Molina Gold Saver 750 Plus with Adult Dental and Vision - HMO
  • Molina Gold Saver 750 Plus with Adult Vision - HMO
  • Molina Gold Standard - HMO
  • Molina Silver Core - HMO
  • Molina Silver Core Plus with Adult Dental and Vision - HMO
  • Molina Silver Core Plus with Adult Vision - HMO
  • Bronze Classic 4700 - EPO
  • Bronze Classic 4700 | MercyOne - EPO
  • Bronze Classic Standard - EPO
  • Bronze Classic Standard | MercyOne - EPO
  • Bronze Elite + PCP Saver Plus - EPO
  • Bronze Elite + PCP Saver Plus | MercyOne - EPO
  • Bronze Simple Breathe Easy with Enhanced COPD Benefits | MercyOne - EPO
  • Bronze Simple Chronic Care CKM | MercyOne - EPO
  • Bronze Simple Diabetes | MercyOne - EPO
  • Gold Classic Standard - EPO
  • UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care) - HMO
  • UHC Bronze Essential ($0 Virtual Urgent Care) - HMO
  • UHC Bronze Standard - HMO
  • UHC Bronze Standard+ (Dental + Vision) - HMO
  • UHC Gold Advantage ($0 Virtual Urgent Care, $8 Tier 2 Rx) - HMO
  • UHC Gold Advantage+ ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision) - HMO
  • UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx) - HMO
  • UHC Gold Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision) - HMO
  • UHC Gold Standard - HMO
  • UHC Silver Advantage ($0 Virtual Urgent Care, $5 Tier 2 Rx) - HMO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
372873501MEDICAID (05)TX 
204394001MEDICAID (05)AR 

Medicare Participation & PECOS Enrollment Status

Thalia Casimire is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Thalia Casimire is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 6507085271

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20170629002048

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Other DME (DE001N)

    Tubing with integrated heating element for use with positive airway pressure device (HCPCS:A4604)

    11 DME suppliers used 77 Medicare Claims 77 Services Paid

  • DME-Other DME (DE001N)

    Full face mask used with positive airway pressure device, each (HCPCS:A7030)

    13 DME suppliers used 88 Medicare Claims 88 Services Paid

  • DME-Other DME (DE001N)

    Face mask interface, replacement for full face mask, each (HCPCS:A7031)

    13 DME suppliers used 89 Medicare Claims 250 Services Paid

  • DME-Other DME (DE001N)

    Cushion for use on nasal mask interface, replacement only, each (HCPCS:A7032)

    6 DME suppliers used 21 Medicare Claims 124 Services Paid

  • DME-Other DME (DE001N)

    Pillow for use on nasal cannula type interface, replacement only, pair (HCPCS:A7033)

    9 DME suppliers used 33 Medicare Claims 192 Services Paid

  • DME-Other DME (DE001N)

    Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap (HCPCS:A7034)

    10 DME suppliers used 59 Medicare Claims 59 Services Paid

  • DME-Other DME (DE001N)

    Headgear used with positive airway pressure device (HCPCS:A7035)

    16 DME suppliers used 82 Medicare Claims 82 Services Paid

  • DME-Other DME (DE001N)

    Tubing used with positive airway pressure device (HCPCS:A7037)

    11 DME suppliers used 70 Medicare Claims 70 Services Paid

  • DME-Other DME (DE001N)

    Filter, disposable, used with positive airway pressure device (HCPCS:A7038)

    16 DME suppliers used 146 Medicare Claims 827 Services Paid

  • DME-Other DME (DE001N)

    Filter, non disposable, used with positive airway pressure device (HCPCS:A7039)

    7 DME suppliers used 21 Medicare Claims 21 Services Paid

  • DME-Other DME (DE001N)

    Water chamber for humidifier, used with positive airway pressure device, replacement, each (HCPCS:A7046)

    13 DME suppliers used 64 Medicare Claims 64 Services Paid

  • DME-Oxygen and Supplies (DC000N)

    Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:E0431)

    2 DME suppliers used 20 Medicare Claims 20 Services Paid

  • DME-Other DME (DE001N)

    Humidifier, heated, used with positive airway pressure device (HCPCS:E0562)

    7 DME suppliers used 11 Medicare Claims 11 Services Paid

  • DME-Other DME (DE000N)

    Nebulizer, with compressor (HCPCS:E0570)

    2 DME suppliers used 16 Medicare Claims 16 Services Paid

  • DME-Other DME (DE001N)

    Continuous positive airway pressure (cpap) device (HCPCS:E0601)

    6 DME suppliers used 102 Medicare Claims 102 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)

    9 DME suppliers used 106 Medicare Claims 106 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Portable oxygen concentrator, rental (HCPCS:E1392)

    3 DME suppliers used 31 Medicare Claims 31 Services Paid

  • DME-Oxygen and Supplies (DC000N)

    Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:K0738)

    2 DME suppliers used 15 Medicare Claims 15 Services Paid

  • DME-Other DME (DE000N)

    Pharmacy dispensing fee for inhalation drug(s); per 30 days (HCPCS:Q0513)

    6 DME suppliers used 29 Medicare Claims 29 Services Paid

Unknown

  • Treatment-Injections and Infusions (nononcologic) (RI008N)

    Injection, immune globulin (hizentra), 100 mg (HCPCS:J1559)

    1 DME suppliers used 11 Medicare Claims 7900 Services Paid

Drugs Administered Through DME

  • DME-Drugs Administered Through DME (DG000N)

    Budesonide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, up to 0.5 mg (HCPCS:J7626)

    4 DME suppliers used 18 Medicare Claims 930 Services Paid

  • DME-Drugs Administered Through DME (DG006N)

    Revefenacin inhalation solution, fda-approved final product, non-compounded, administered through dme, 1 microgram (HCPCS:J7677)

    2 DME suppliers used 11 Medicare Claims 57750 Services Paid

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Critical care, first 30-74 minutes

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.

This service was performed 244 times for 128 patients

Sleep study in sleep lab (6 years or older)

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.

This service was performed 17 times for 17 patients

Sleep study in sleep lab with continuous airway pressure (6 years or older)

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.

This service was performed 15 times for 15 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes

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.

This service was performed 69 times for 54 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $33.51 for a new patient copayment and $25.67 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 77070 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $134.06
  • Minimum New Patient Price $58.24
  • Maximum New Patient Price $176.98
  • Average New Patient Copayment $33.51
  • Minimum New Patient Copayment $14.56
  • Maximum New Patient Copayment $44.24

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $102.71
  • Minimum Established Patient Price $18.6
  • Maximum Established Patient Price $143.93
  • Average Established Patient Copayment $25.67
  • Minimum Established Patient Copayment $4.65
  • Maximum Established Patient Copayment $35.98

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Thalia Casimire is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
CHRISTUS MOTHER FRANCES HOSPITAL800 EAST DAWSON
TYLER, TX 75701
(903) 593-8441Acute Care Hospitals
HOUSTON METHODIST HOSPITAL6565 FANNIN
HOUSTON, TX 77030
(713) 790-2221Acute Care Hospitals
HOUSTON METHODIST WILLOWBROOK HOSPITAL18220 STATE HIGHWAY 249
HOUSTON, TX 77070
(281) 477-1000Acute Care Hospitals

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Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1467650507, enumerated as an "individual" on July 10, 2007.

The provider is located at 13300 HARGRAVE RD STE 100 HOUSTON, TX 77070 and the phone number is (281) 357-0111.

Internal Medicine with taxonomy code 207RC0200X and a focus in Critical Care Medicine.

The provider might be accepting Accepts: Blue Cross and Blue Shield of Texas, CHRISTUS. Please consult your insurance carrier or call the provider to verify.

Thalia Casimire is affiliated with: CHRISTUS MOTHER FRANCES HOSPITAL, HOUSTON METHODIST HOSPITAL and HOUSTON METHODIST WILLOWBROOK HOSPITAL.