Name: Dr. Stefan Kostalyna

Specialty: Internal Medicine & Pediatrics (Med-Peds)

Qualification / Board Certification: Internist & Pediatrician — Specific degree and board certification details not publicly listed; contact office to confirm

Affiliation(s): Ben Taub Hospital — Houston, TX

Locations (City/State): Houston, TX (3 locations)

Languages Spoken: English

Accepting New Patients: Yes

NPI Number: 1316575889

About the Doctor

Dr. Stefan Kostalyna  is a uniquely trained dual-specialty physician practicing both Internal Medicine and Pediatrics — commonly referred to as a Med-Peds physician — at three locations within the renowned Texas Medical Center corridor in Houston, Texas. This rare dual-specialty training allows Dr. Kostelyna to serve patients across the entire age spectrum, from newborns and children through adolescents and adults, providing exceptional continuity of care for individuals and families who value having a single trusted physician throughout their lives.

His clinical focus spans a notably complex range of medical conditions. The conditions documented in his practice — anaphylaxis, cystic fibrosis, deep vein thrombosis, osteoporosis, pneumonia, sepsis, and sleep apnea — reflect a practice environment well beyond routine primary care. Cystic fibrosis, in particular, is a complex, multi-system genetic disease requiring highly specialized, lifelong medical management, and Dr. Kostelyna’s experience with this condition signals a depth of clinical expertise in pulmonary and systemic disease that distinguishes his practice from many general internists and pediatricians.

Dr. Kostelyna practices at three locations within the 77030 zip code — the heart of the Texas Medical Center, the largest medical complex in the world. His admitting privileges at Ben Taub Hospital, the primary public hospital of the Harris Health System and a Level I Trauma Center serving Houston’s diverse and underserved communities, further underscores his commitment to broad-access, high-quality medical care. He accepts UnitedHealthcare and other major insurance plans and is currently accepting new patients at all three of his Houston practice locations.

Highlights at a glance:

• Dual-specialty physician — Internal Medicine and Pediatrics (Med-Peds)
• Serves patients from birth through adulthood
• Three practice locations within the Texas Medical Center, Houston, TX
• Admitting privileges at Ben Taub Hospital — Level I Trauma Center
• Experience with complex conditions including cystic fibrosis, sepsis, and DVT
• Accepts UnitedHealthcare and other major insurance plans
• Currently accepting new patients

Education & Training

Specific details of Dr. Kostelyna’s medical school and residency program are not publicly listed in available records. Patients seeking information about his educational background are encouraged to contact his office directly at (832) 824-1000. His dual-specialty designation reflects the following combined training pathway standard for Med-Peds physicians:

• Medical School: Medical Degree (MD or DO) — Institution not publicly listed; contact office for details
• Residency: Combined Internal Medicine & Pediatrics (Med-Peds) Residency — Four-year combined residency program providing dual board eligibility in both Internal Medicine and Pediatrics (specific program not publicly listed)
• Fellowship / Additional Training: General Internal Medicine and Pediatrics with clinical experience in pulmonology, infectious disease, hematology, and complex chronic disease management
• Board Certification: Specific certification details not publicly confirmed — contact office to verify current board status in Internal Medicine and/or Pediatrics
• NPI Registration: Active — NPI Number 1316575889

Medical Conditions Treated

As a dual Internal Medicine and Pediatrics specialist, Dr. Kostelyna diagnoses, treats, and manages a broad and clinically complex range of conditions across all age groups, including:

• Anaphylaxis & Severe Allergic Reactions
• Cystic Fibrosis — Lifelong Pulmonary & Multi-System Management
• Deep Vein Thrombosis (DVT) & Venous Thromboembolism
• Osteoporosis & Bone Density Disorders
• Pneumonia & Serious Lung Infections
• Sepsis & Systemic Infections
• Sleep Apnea — Obstructive & Central
• High Blood Pressure (Hypertension)
• Type 2 Diabetes & Blood Sugar Management
• Asthma & Chronic Obstructive Pulmonary Disease (COPD)
• Pediatric Respiratory Conditions & Childhood Lung Disease
• Cardiovascular Disease & Heart Health Management
• Kidney Disease & Renal Function Concerns
• Digestive & Gastrointestinal Conditions
• Infections — Bacterial, Viral & Fungal
• Anemia & Blood Disorders
• Pediatric Growth & Developmental Concerns
• Anxiety, Depression & Mental Health Screening
• Substance Abuse Assessment & Referral
• Preventive Care & Health Maintenance — Adults & Children

Medical Procedures Performed

Dr. Kostelyna performs a comprehensive range of diagnostic, therapeutic, and consultative procedures for both adult and pediatric patients, including:

• Annual Physical Examinations & Annual Check-Ups — Adults & Children
• Ambulatory Care Consultations
• Blood Pressure Testing & Cardiovascular Monitoring
• Bladder and Bowel Management Assessment & Planning
• Bowel and Bladder Management Programs
• Certified Medical Examination for Commercial Drivers / Vessel Masters (DOT Physicals)
• Aromatherapy Integration as Complementary Wellness Support
• Routine Blood Work & Laboratory Test Orders
• Pediatric Well-Child Visits & Developmental Screenings
• Preventive Health Screenings — Diabetes, Cholesterol, Cancer Risk
• DVT & Venous Thromboembolism Evaluation & Management
• Sleep Apnea Assessment & CPAP Therapy Coordination
• Sepsis Recognition & Acute Infectious Disease Management
• Osteoporosis Screening & Bone Density Management
• Immunizations — Adult & Childhood Vaccination Programs
• Cystic Fibrosis Monitoring & Pulmonary Care Coordination
• Anaphylaxis Management & Epinephrine Treatment Planning
• Specialist Referrals & Multi-Disciplinary Care Coordination
• Telehealth Consultations (availability — contact office to confirm)

Services Offered

Dr. Kostelyna’s combined Internal Medicine and Pediatrics practice offers a truly distinctive model of healthcare — one that supports patients and families across every stage of life under the continuity of a single, deeply knowledgeable physician. His three Texas Medical Center locations place him at the epicenter of one of the world’s greatest concentrations of medical expertise, enabling seamless coordination with subspecialists and advanced care resources when his patients need them. His clinical scope spans routine preventive care, complex chronic disease management, and acute medical conditions of significant severity — reflecting a practice that is both broad and clinically deep.

Dual-Specialty Med-Peds Care — Children Through Adults Dr. Kostelyna’s Med-Peds training is the defining strength of his practice. Unlike physicians who specialize exclusively in either adults or children, Dr. Kostelyna is fully qualified and trained to care for patients from birth through the entirety of adult life. This makes him an exceptional choice for families who value longitudinal, relationship-based care with a physician who understands their medical history across decades.

• Newborn, infant, and well-child care from birth through adolescence
• Transition of care support from pediatric to adult medicine for young adults with chronic conditions
• Family-centered care — parents and children seen by the same physician
• Longitudinal health tracking across childhood, adolescence, and adult life
• Management of pediatric chronic conditions that persist into adulthood — such as cystic fibrosis and asthma

Cystic Fibrosis Management Cystic fibrosis is one of the most complex chronic diseases in medicine, requiring lifelong, multidisciplinary, highly individualized care. Dr. Kostelyna’s clinical experience with cystic fibrosis — a condition that spans both pediatric and adult medicine — is a significant distinguishing feature of his dual-specialty practice. He provides ongoing monitoring, pulmonary care coordination, nutritional support guidance, and management of CF-related complications in collaboration with subspecialists.

• Comprehensive cystic fibrosis monitoring and pulmonary function tracking
• Management of CF-related complications — infections, pancreatic insufficiency, and diabetes
• Coordination with CF specialist centers and pulmonologists
• Transition of cystic fibrosis patients from pediatric to adult care
• Patient and family education on CF management and treatment adherence

Preventive Care & Wellness Services Dr. Kostelyna places a strong emphasis on preventive medicine for patients of all ages. He conducts comprehensive annual physical examinations and well-child visits, administers age-appropriate immunizations, and orders preventive screenings to identify health risks early and intervene before serious conditions develop.

• Annual physical exams and adult wellness check-ups
• Well-child visits, growth monitoring, and developmental screenings
• Adult and childhood immunization programs
• Preventive screenings — blood pressure, cholesterol, glucose, bone density, and cancer risk
• Lifestyle counseling — nutrition, physical activity, sleep health, and weight management

Acute & Serious Illness Management Dr. Kostelyna’s clinical experience extends well into acute and serious illness management. His documented expertise with sepsis, pneumonia, anaphylaxis, and DVT reflects a practice environment prepared to respond to medically urgent and potentially life-threatening presentations, providing rapid assessment and coordinated acute care.

• Sepsis evaluation, recognition, and acute management
• Pneumonia diagnosis and antibiotic treatment
• Anaphylaxis management and epinephrine treatment planning
• Deep vein thrombosis (DVT) evaluation, anticoagulation therapy, and monitoring
• Acute illness management and hospital admission coordination at Ben Taub Hospital

Sleep Apnea Evaluation & Management Dr. Kostelyna evaluates and manages sleep apnea in both adult and pediatric patients — a condition with significant cardiovascular, metabolic, and cognitive health implications if left untreated. He coordinates diagnostic sleep studies and CPAP or other therapeutic interventions for appropriate patients.

• Sleep apnea risk assessment and symptom evaluation
• Coordination of diagnostic polysomnography (sleep studies)
• CPAP therapy initiation and follow-up monitoring
• Pediatric and adult sleep-disordered breathing management

Osteoporosis & Bone Health Management Dr. Kostelyna provides bone density evaluation and osteoporosis management, helping patients — particularly post-menopausal women and elderly individuals — reduce their risk of fractures through medication management, nutritional guidance, and lifestyle counseling.

• Bone density screening and DEXA scan coordination
• Osteoporosis diagnosis, staging, and medication management
• Calcium, vitamin D, and bisphosphonate therapy management
• Fall prevention and fracture risk counseling

Commercial Driver Medical Examinations (DOT Physicals) Dr. Kostelyna is authorized to perform DOT-certified medical examinations for commercial drivers and vessel masters, providing the fitness certification required for CDL compliance and regulatory requirements.

• DOT-certified physical examinations for commercial vehicle operators
• Medical fitness assessments and regulatory documentation
• Vessel master fitness certification

Telehealth & Online Consultations Patients interested in virtual care options are encouraged to contact Dr. Kostelyna’s office directly at (832) 824-1000 to confirm telehealth availability and scheduling for appropriate cases.

Accepted Insurances

Dr. Kostelyna accepts most major insurance plans. Patients are advised to call (832) 824-1000 before scheduling to verify their specific plan and network coverage. Accepted carriers include:

• UnitedHealthcare
• All Other Major Third Party Insurance Plans

Note: The publicly listed insurance information for Dr. Kostelyna is limited. Patients are strongly encouraged to contact the office directly at (832) 824-1000 to confirm full insurance acceptance and out-of-pocket costs before scheduling an appointment.

Practice Locations

Location 1 — Primary Office Address: 1504 Taub Loop, Houston, TX 77030 Phone: (832) 824-1000

Location 2 — Secondary Office Address: 1 Baylor Plaza, Houston, TX 77030 Phone: Contact primary office at (832) 824-1000

Location 3 — Additional Office Address: 6651 Main St, Houston, TX 77030 Phone: (832) 824-1000

Hospital Affiliations

Dr. Kostelyna holds admitting privileges at the following hospital serving the Houston, Texas community:

• Ben Taub Hospital — Houston, TX (The flagship public hospital of the Harris Health System and a designated Level I Trauma Center serving Harris County and the greater Houston metropolitan area. Ben Taub is one of the busiest public hospitals in Texas, providing comprehensive emergency, trauma, and specialty care to patients regardless of ability to pay. It is also a major teaching hospital affiliated with Baylor College of Medicine.)