METRO ID

Infectious Disease Specialists

Wound Care & Hyperbaric Medicine Expertise

01 Our Mission

We will use our expert knowledge to assist you in all of your Infectious Disease, Wound Care & Hyperbaric Medicine needs.

Let our experienced and diverse staff of professionals be there for you.

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Our highly trained staff and medical professionals have a combined experience of over 100 years in the medical field and speak more than half a dozen languages. 

Metro ID provides infectious disease expertise, advanced wound care, and UHMS-guided hyperbaric oxygen therapy in Houston.

02 The Team

We place great importance on direct contact with patients, and that starts with how we train our staff. We never let theoretical concerns obscure the human at the heart of it all.

Our licensed medical staff regularly participates in seminars and Continuing Medical Education to stay current with the latest developments in the fields of Internal Medicine, Infectious Disease, Advanced Wound Care & Hyperbaric Medicine.

We’d like to introduce ourselves, so that you feel as comfortable as possible. 


Get to know our team and have a look at our facilities. Don’t hesitate to contact our team if you have any questions.

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03 Our Promise

Our highly qualified clinical staff will care for you and your loved ones the same way we would want our family cared for.
At METRO ID, patients are our priority and the reason why we do all that we do.

From our front office staff, to our pharmacist, to the infusion nurses and the medical assistants and our office administrator, to our PA and MDs: WE PROMISE to work every day to earn your trust and we thank you for allowing METRO ID to participate in your care!

04 Our Services

Outpatient Infusion Services

Our patients receive individualized & carefully monitored IV antibiotic, antiviral, antifungal and other formerly considered to be strictly inpatient treatments in our office or at home.

Inpatient & Intensive care

For patients requiring inpatient or intensive care, we have our specialists credentialed at many of Southwest Houston and Sugar Land's most respected hospitals.

Training for relatives & caregivers

We provide training & education for the patient’s family and caregivers, because we understand that from simple to complex medical problems, the best care is often a TEAM EFFORT. 

Specialty Care

We have specially trained staff to care for patients with immunocompromised conditions, contact isolation precautions and other health challenges.



Outpatient Infusion Services - Informed Consent Starts HERE:


What is Outpatient Infusion Therapy?
Outpatient infusion therapy means getting medicine through a vein (IV) at a clinic instead of staying in the hospital. This can include antibiotics, antifungals, antivirals, and biologic medicines. The goal is to treat serious infections or other conditions safely while allowing patients to stay at home and continue daily life.
[1][2]

Who Will Take Care of You?
A team of infectious disease specialists (MD/PA), nurses, and pharmacists will coordinate your care. They will administer your medicine, assess your health, and ensure your IV line is functioning properly. You will have regular lab tests to monitor your safety and how well the medicine is working.
[1][2][3]

What to Expect During Treatment
- You will come to the infusion center for your scheduled treatments.
- A licensed practitioner will place and care for your IV access (such as a PICC or midline catheter).
- Your care team will check your blood tests and watch for side effects.
- You may need to report any new symptoms, such as fever, pain, swelling, or redness at the IV site.
[1][2][4]

Possible Risks and Side Effects
All medicines can have side effects. Some possible risks include:
- Allergic reactions (rash, itching, swelling)
- Stomach upset, diarrhea, or muscle aches
- Changes in kidney or liver function (checked by blood tests)
- Problems with the IV line, such as infection, clotting, or leakage
[5][2][3][4]
Most side effects are mild, but some can be serious. Your care team will monitor you closely and adjust your treatment if needed.

Your Responsibilities
- Keep all scheduled appointments for infusions and lab tests.
- Tell your care team about any new symptoms or problems.
- Follow instructions for caring for your IV line at home, if needed.
- Ask questions if you do not understand something about your treatment.
[1][6]


Your Choices and Rights
-You have the right to understand your treatment options, risks, and benefits. You can ask questions and make decisions about your care. If you wish to stop treatment or change your plan, talk with your care team.
[7]

Costs and Insurance
-Most outpatient infusions are covered by insurance, including Medicare. Your team will help explain any costs and work with your insurance company.[1][8][7]


When to Get Help
Call our office at 713-339-9949 to determine if you should see your doctor or go to the emergency room. But if you have any doubts, call 911 or go to the ER

  • Fever over 100.4°F (38°C) or chills,
  • Redness, swelling, or pain at the IV site
  • Sudden weakness, confusion, or tremors
  • New onset of ringing in the ears, hearing loss,
  • Nausea, vomiting, diarrhea, abdominal pain, or swelling
  • Itching: Persistent itching without a clear cause
  • Fluid Retention: Swelling in the legs, ankles, or feet
  • Sudden marked decrease in urine output
  • A change in the color of your :
  • eyes (yellow)
  • skin (yellow)
  • urine (dark color of coke, tea, or with frank blood)
  • stools (clay/pale light, or frank blood or black and tarry)


All these need to be reported to our office immediately. At Metropolitan ID, we have an MD, RN, and Pharmacist on call 24/7. However, there are some conditions that require a specialist in Emergency Medicine or rapid diagnostic equipment and management. If you need to be seen in urgent care or the ER, please tell them you are under the care of a physician at Metro ID and to  contact us to coordinate your care.  [6]

-
Heart Attack, Stroke, and Cardiac Arrest Symptoms

*If these warning signs are present, CALL 911 FIRST, then notify our office (and the emergency personnel you are under our care*

  • Chest Discomfort: Pressure, squeezing, fullness, or pain in the center of the chest lasting more than a few minutes.
  • Upper Body Discomfort: Pain or discomfort in one or both arms, back, neck, jaw, or stomach.
  • Shortness of Breath: May occur with or without chest discomfort.
  • Other Signs: Cold sweat, nausea, or lightheadedness.
  • Face Drooping: One side of the face droops or is numb. Ask the person to smile.
  • Arm Weakness: Weakness or numbness in one arm. Check if one arm drifts downward when raised.
  • Speech Difficulty: Slurred speech or trouble speaking.
  • Sudden Confusion: Difficulty understanding speech.
  • Vision Problems: Sudden trouble seeing in one or both eyes.
  • Severe Headache: A sudden, severe headache with no known cause.
    -

    Questions?
    Your care team is here to help. Please ask any questions you have about your treatment, risks, or what to expect.

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References

  1. 2018 Infectious Diseases Society of America Clinical Practice Guideline for the Management of Outpatient Parenteral Antimicrobial Therapy. Norris AH, Shrestha NK, Allison GM, et al. Clinical Infectious Diseases : An Official Publication of the Infectious Diseases Society of America. 2019;68(1):e1-e35. doi:10.1093/cid/ciy745.
  2. Safety and Efficacy of Outpatient Parenteral Antibiotic Therapy in an Academic Infectious Disease Clinic. Suleyman G, Kenney R, Zervos MJ, Weinmann A. Journal of Clinical Pharmacy and Therapeutics. 2017;42(1):39-43. doi:10.1111/jcpt.12465.
  3. Outpatient Parenteral Antimicrobial Therapy Practices Among Adult Infectious Disease Physicians. Lane MA, Marschall J, Beekmann SE, et al. Infection Control and Hospital Epidemiology. 2014;35(7):839-44. doi:10.1086/676859.
  4. Midline vs Peripherally Inserted Central Catheter for Outpatient Parenteral Antimicrobial Therapy. Paje D, Walzl E, Heath M, et al. JAMA Internal Medicine. 2025;185(1):83-91. doi:10.1001/jamainternmed.2024.5984.
  5. Infective Endocarditis in Adults: Diagnosis, Antimicrobial Therapy, and Management of Complications: A Scientific Statement for Healthcare Professionals From the American Heart Association. Baddour LM, Wilson WR, Bayer AS, et al. Circulation. 2015;132(15):1435-86. doi:10.1161/CIR.0000000000000296.
  6. Outpatient Management of Fever and Neutropenia in Adults Treated for Malignancy: American Society of Clinical Oncology and Infectious Diseases Society of America Clinical Practice Guideline Update. Taplitz RA, Kennedy EB, Bow EJ, et al. Journal of Clinical Oncology : Official Journal of the American Society of Clinical Oncology. 2018;36(14):1443-1453. doi:10.1200/JCO.2017.77.6211.
  7. Incorporating Ethics in Clinical Guidelines in Infectious Diseases. Yahav D, Nasim A, Shirin N, et al. JAMA Network Open. 2025;8(7):e2519826. doi:10.1001/jamanetworkopen.2025.19826.
  8. Update and Overview of Outpatient Parenteral Antimicrobial Therapy Regulations and Reimbursement. Ross Nolet B. Clinical Infectious Diseases : An Official Publication of the Infectious Diseases Society of America. 2010;51 Suppl 2:S216-9. doi:10.1086/653522.


Metro ID offers comprehensive, advanced OPWC (Outpatient Wound Care) and HBO (HyperBaric Oxygen Therapy) evaluation, management, and treatment. Dr. Shahe Vartivarian, MD, and PA Maria Calzada, PA-C, have a combined 36 years of experience in Wound Care and supervising the administration of thousands of Hyperbaric Oxygen Treatments.


In 2015, PA Calzada also earned the designation of National Board Certified Hyperbaric Technologist through the Diving and Hyperbaric Medical Technology certification. Both Dr. Vartivarian and PA Calzada maintain their ACLS provider certifications. They can be found at the new and improved Memorial Hermann Southwest OPWC and HBO Department, now partnered with RestorixHealth, which specializes in developing and managing successful wound centers in collaboration with hospitals, healthcare facilities, and health systems. Like Metro ID, they are committed to saving limbs and improving patient outcomes. Our focus is on establishing advanced wound healing programs that can improve patient health.


Hyperbaric Oxygen (HBO) Therapy patient education videos by RestorixHealth in English: https://restorixhealth.com/patient-education/ (and Spanish) 


Videos de educación para pacientes sobre la Terapia de Oxígeno Hiperbárico (HBO) por RestorixHealth en inglés: https://restorixhealth.com/patient-education/ (y en español)


Contact us for more information about HBO or click HERE.

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We also are proud to have a multicultural Medical / Clinical and Clerical Staff, that together speak 7 languages: 


  • English
  • Spanish
  • French
  • Arabic
  • Armenian
  • Vietnamese
  • Turkish

05 OUR COMMITMENT

OUR COMMITMENT to our community.

About Our Education Mission

At Metropolitan ID, we are dedicated to education and the future of healthcare. For over 30 years, we have served the Southwest Houston community and supported students pursuing careers in medicine, nursing, and allied health. Our team of doctors (MDs and DOs) and physician assistants (PAs) has mentored students preparing for various roles, including certified medical assistants (CMAs), licensed vocational nurses (LVNs), registered nurses (RNs), nurse practitioners (NPs), physician assistants (PAs), and physicians.

STUDENT APPLICANTS

Student Shadowing & Educational Opportunities


For Students:

  • Observe outpatient care in Infectious Diseases, Wound Care, and Hyperbaric Medicine
  • Gain exposure to complex medical cases
  • Learn professionalism, confidentiality, and the importance of patient privacy


For Patients:

  • Students are observers only. They do not provide medical care or access to your records.
  • You will always be asked for written consent before a student is present.
  • Your decision to allow or decline a student observer will not affect your care in any way.


Trusted Resources of Local & National Data on Infectious Disease Topics:


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