Dr. Sharaf Ali Diwan
Last updated: Jul 8, 2007

Dr. Sharaf Ali Diwan

  • Gender: Male
  • Experience: 32 years
  • Graduation year: 1989
  • Sole propriator: No
  • NPI: 1114927290

Dr. Sharaf Ali Diwan M.D.

Infectious Disease Specialist

He is located at 18220 Tomball Parkway Suite 230 in Houston, TX 77070. Can help patients with the following: Genital Herpes, Hand, Foot, and Mouth Disease (HFMD), Listeriosis, Lyme Disease, Rabies, Scabies. His National Provider Identifier (NPI) number is 1114927290. Appointment can be made via the phone number (832) 604-0005. He is affiliated with 2 practices and 3 hospitals.

Conditions treated

Dr. Sharaf Ali Diwan, being an infectious disease specialist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Sharaf Ali Diwan.

  • Abdominal Pain
  • Acquired Immunodeficiency Syndrome (AIDS)
  • Acute Pain
  • Anemia
  • Anthrax
  • Arthritis
  • Asthma
  • Atherosclerosis
  • Bacterial Vaginosis
  • Bladder Control
  • Boils
  • Botulism
  • Bronchitis
  • Brucellosis
  • Cancer
  • Candida Auris
  • Cat Scratch Disease
  • Cellulitis
  • Chagas Disease
  • Chest Pain
  • Chickenpox
  • Chlamydia
  • Cholecystitis
  • Cholera
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Chronic Rhinitis
  • Common Cold
  • Constipation
  • Coronavirus
  • Cryptococcosis
  • Cystitis
  • Cytomegalovirus (CMV)
  • Dengue Fever
  • Diarrhea
  • Diphtheria
  • E. Coli Infection
  • Eastern Equine Encephalitis (EEE)
  • Ebola Hemorrhagic Fever
  • Edema
  • Encephalitis
  • Endocarditis
  • Epididymitis
  • Fever
  • Fifth Disease
  • Food Poisoning
  • Gangrene
  • Gastroesophageal Reflux Disease (GERD)
  • General Care
  • Genital Herpes
  • Giardiasis
  • Gonorrhea
  • Guinea Worm Disease
  • Hand, Foot, and Mouth Disease (HFMD)
  • Headache
  • Heart Disease
  • Helicobacter Pylori Infection
  • Hepatitis A (HAV)
  • Hepatitis B (HBV)
  • Hepatitis C (HCV)
  • Herpes Simplex Virus
  • Hiatal Hernia
  • High Blood Pressure
  • Histoplasmosis
  • Hot Flashes
  • Human Immunodeficiency Virus (HIV)
  • Human Papillomavirus (HPV)
  • Hyperlipidemia
  • Hyponatremia
  • Impetigo
  • Infectious Diseases
  • Infectious Mononucleosis
  • Influenza
  • Inguinal Hernia
  • Leishmaniasis
  • Leprosy
  • Leptospirosis
  • Listeriosis
  • Lyme Disease
  • Mad Cow Disease
  • Malaria
  • Measles
  • Meningitis
  • Migraine
  • Mumps
  • Nail Fungus
  • Nausea and Vomiting
  • Necrotizing Fasciitis (NF)
  • Neutropenia
  • Obesity
  • Osteomyelitis
  • Osteoporosis
  • Peptic Ulcer
  • Pinworm Infection
  • Pityriasis Rosea
  • Pneumonia
  • Polio
  • Prescription Refill
  • Rabies
  • Rocky Mountain Spotted Fever (RMSF)
  • Roseola
  • Rubella
  • Salmonella Food Poisoning
  • Scabies
  • Scarlet Fever
  • Schistosomiasis
  • Sepsis
  • Severe Acute Respiratory Syndrome (SARS)
  • Sexually Transmitted Diseases (STDs)
  • Smallpox
  • Sore Throat
  • Staph Infection
  • Stomach Flu
  • Strep Throat
  • Swine Flu
  • Syphilis
  • Tetanus
  • Thrush
  • Tonsillitis
  • Toxic Shock Syndrome (TSS)
  • Toxoplasmosis
  • Trichinosis
  • Tuberculosis (TB)
  • Typhoid Fever
  • Upper Respiratory Infection (URI)
  • Urethritis
  • Urinary Tract Infection (UTI)
  • Valley Fever
  • Viral Hemorrhagic Fever (VHF)
  • West Nile Virus
  • Whooping Cough
  • Yaws
  • Yeast Infection
  • Yellow Fever
  • Zika Virus

Procedures Performed by Dr. Sharaf Ali Diwan

ACA Marketplace (Obamacare/HealthCare.gov) plan networks

Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Sharaf Ali Diwan as in-network for the following 2026 plans.

Health plans

Ambetter from Superior HealthPlan

Network data as of Sep 15, 2026, as reported by the insurer.

Show all 12 plans from Ambetter from Superior HealthPlan
Ambetter from Superior HealthPlan plans
Plan Plan type Network tier New patients
Complete Gold EPO · Gold Preferred Accepting new patients
Complete Gold + Vision + Adult Dental EPO · Gold Preferred Accepting new patients
Enhanced Diabetes Care Silver with $0 Drug Options EPO · Silver Preferred Accepting new patients
Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental EPO · Silver Preferred Accepting new patients
Everyday Gold EPO · Gold Preferred Accepting new patients
Everyday Gold + Vision + Adult Dental EPO · Gold Preferred Accepting new patients
Focused Silver EPO · Silver Preferred Accepting new patients
Focused Silver + Vision + Adult Dental EPO · Silver Preferred Accepting new patients
Standard Gold EPO · Gold Preferred Accepting new patients
Standard Gold + Vision + Adult Dental EPO · Gold Preferred Accepting new patients
Standard Silver EPO · Silver Preferred Accepting new patients
Standard Silver + Vision + Adult Dental EPO · Silver Preferred Accepting new patients

Ambetter from Superior HealthPlan

Network data as of Sep 15, 2026, as reported by the insurer.

Show all 6 plans from Ambetter from Superior HealthPlan
Ambetter from Superior HealthPlan plans
Plan Plan type Network tier New patients
Complete VALUE Gold (3 plan variants) HMO · Gold Preferred Accepting new patients
Focused VALUE Silver (3 plan variants) HMO · Silver Preferred Accepting new patients
Focused VALUE Silver + Vision + Adult Dental (3 plan variants) HMO · Silver Preferred Accepting new patients
Standard Gold VALUE (3 plan variants) HMO · Gold Preferred Accepting new patients
Standard Silver VALUE (3 plan variants) HMO · Silver Preferred Accepting new patients
Standard Silver VALUE + Vision + Adult Dental (3 plan variants) HMO · Silver Preferred Accepting new patients

Blue Cross and Blue Shield of Texas

Network data as of Jun 7, 2026, as reported by the insurer.

Show all 19 plans from Blue Cross and Blue Shield of Texas
Blue Cross and Blue Shield of Texas plans
Plan Plan type Network tier New patients
Blue Advantage Bronze HMO℠ 204 (27 plan variants) HMO · Expanded Bronze Blue Advantage HMO Accepting new patients
Blue Advantage Bronze HMO℠ 301 (14 plan variants) HMO · Bronze Blue Advantage HMO Accepting new patients
Blue Advantage Bronze HMO℠ Standard (27 plan variants) HMO · Expanded Bronze Blue Advantage HMO Accepting new patients
Blue Advantage Gold HMO℠ 206 (27 plan variants) HMO · Gold Blue Advantage HMO Accepting new patients
Blue Advantage Gold HMO℠ 603 (14 plan variants) HMO · Gold Blue Advantage HMO Accepting new patients
Blue Advantage Gold HMO℠ Standard (27 plan variants) HMO · Gold Blue Advantage HMO Accepting new patients
Blue Advantage Plus Bronze℠ 303 (27 plan variants) POS · Expanded Bronze Blue Advantage HMO Accepting new patients
Blue Advantage Plus Bronze℠ 305 (27 plan variants) POS · Bronze Blue Advantage HMO Accepting new patients
Blue Advantage Plus Bronze℠ Standard (27 plan variants) POS · Expanded Bronze Blue Advantage HMO Accepting new patients
Blue Advantage Plus Gold℠ 203 (27 plan variants) POS · Gold Blue Advantage HMO Accepting new patients
Blue Advantage Plus Gold℠ 803 (27 plan variants) POS · Gold Blue Advantage HMO Accepting new patients
Blue Advantage Plus Gold℠ Standard (27 plan variants) POS · Gold Blue Advantage HMO Accepting new patients
Blue Advantage Plus Silver℠ 202 (27 plan variants) POS · Silver Blue Advantage HMO Accepting new patients
Blue Advantage Plus Silver℠ 605 (27 plan variants) POS · Silver Blue Advantage HMO Accepting new patients
Blue Advantage Plus Silver℠ Standard (27 plan variants) POS · Silver Blue Advantage HMO Accepting new patients
Blue Advantage Security HMO℠ 200 (27 plan variants) HMO · Catastrophic Blue Advantage HMO Accepting new patients
Blue Advantage Silver HMO℠ 205 (27 plan variants) HMO · Silver Blue Advantage HMO Accepting new patients
Blue Advantage Silver HMO℠ 801 (14 plan variants) HMO · Silver Blue Advantage HMO Accepting new patients
Blue Advantage Silver HMO℠ Standard (27 plan variants) HMO · Silver Blue Advantage HMO Accepting new patients

Community Health Choice

Network data as of Jan 28, 2026, as reported by the insurer.

Show all 18 plans from Community Health Choice
Community Health Choice plans
Plan Plan type Network tier New patients
Community Premier Bronze 003 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Expanded Bronze Non Preferred Accepting new patients
Community Premier Bronze 003 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Expanded Bronze Preferred Accepting new patients
Community Premier Bronze 018 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Expanded Bronze Non Preferred Accepting new patients
Community Premier Bronze 018 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Expanded Bronze Preferred Accepting new patients
Community Premier Gold 005 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Gold Non Preferred Accepting new patients
Community Premier Gold 005 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Gold Preferred Accepting new patients
Community Premier Gold 021 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Gold Non Preferred Accepting new patients
Community Premier Gold 021 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Gold Preferred Accepting new patients
Community Premier Silver 012 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Silver Non Preferred Accepting new patients
Community Premier Silver 012 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Silver Preferred Accepting new patients
Community Premier Silver 020 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Silver Non Preferred Accepting new patients
Community Premier Silver 020 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Silver Preferred Accepting new patients
Community Select Bronze 016 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Expanded Bronze Non Preferred Accepting new patients
Community Select Bronze 016 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) HMO · Expanded Bronze Preferred Accepting new patients
Community Select Gold 022 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) (2 plan variants) HMO · Gold Non Preferred Accepting new patients
Community Select Gold 022 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) (2 plan variants) HMO · Gold Preferred Accepting new patients
Community Select Silver 019 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) (2 plan variants) HMO · Silver Non Preferred Accepting new patients
Community Select Silver 019 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) (2 plan variants) HMO · Silver Preferred Accepting new patients

This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Sharaf Ali Diwan is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.

Insurance information looks wrong? Let us know

Medicare Enrollment

Dr. Sharaf Ali Diwan is enrolled to bill Medicare as a Practitioner - Infectious Disease .

Bills through: Sharaf Diwan Md Pa Llc

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.

Payments received

Drug payment

Viiv Healthcare Company $673
Merck $452
Gilead Sciences Inc. $426

Other

Food and Beverage $2741
Consulting $100

Studies

Graduated in 1989

Additional Specialities

  • Internist

Affiliated practices

Sharaf Diwan MD PA LLC
18820 State Highway 249
Houston, 77070 TX
(832) 604-0005
Northwest Cardiovascular Clinic PA
18220 State Highway 249
Houston, 77070 TX
(832) 422-5252

Affiliated hospitals

HUNTSVILLE MEMORIAL HOSPITAL
110 MEMORIAL HOSPITAL DRIVE
HUNTSVILLE, 77340 TX
(936) 291-3411
HOUSTON METHODIST WILLOWBROOK HOSPITAL
18220 TOMBALL PARKWAY
HOUSTON, 77070 TX
(281) 477-1000
HOUSTON NORTHWEST MEDICAL CENTER
710 CYPRESS CREEK PARKWAY
HOUSTON, 77090 TX
(281) 440-1000

Looking for more Infectious Disease Specialists?

Here are infectious disease specialists in Texas you may want to explore.

Dr. Ricardo Martin La Hoz
  • Gender: Male
  • Address: 5323 Harry Hines Boulevard Dallas, 75390, TX
Dr. Janice John Koshy
  • Gender: Female
  • Address: 25140 Kingsland Boulevard # 200 Katy, 77494, TX
Dr. Ank Elisabeth Nijhawan
  • Gender: Female
  • Address: 5323 Harry Hines Boulevard Dallas, 75390, TX
Dr. Philip Blanco Antiporta
  • Gender: Male
  • Address: Suite 325 1325 Pennsylvania Avenue Fort Worth, 76104, TX
Dr. Devak Girish Desai
  • Gender: Male
  • Address: Suite 205 309 Regency Parkway Mansfield, 76063, TX
Dr. Tore Ulf Westblom
  • Gender: Male
  • Address: 1901 South 1st Street Temple, 76504, TX
Dr. Emnet Sisay
  • Gender: Female
  • Address: Suite 325 1325 Pennsylvania Avenue Fort Worth, 76104, TX
Dr. Sohail Ahmed
  • Gender: Male
  • Address: 6701 Heritage Parkway Suite 160 Rockwall, 75087, TX
Dr. Richard E. Winn
  • Gender: Male
  • Address: #2 3601 4th Street Lubbock, 79430, TX
Dr. Ahmed Abubaker
  • Gender: Male
  • Address: 1441 North Beckley Avenue Dallas, 75203, TX

Questions & Answers

Has Dr. Sharaf Ali Diwan affiliation with hospitals?

Dr. Sharaf Ali Diwan is affiliated with HUNTSVILLE MEMORIAL HOSPITAL. For the full list of hospitals see this list.

Does Dr. Sharaf Ali Diwan have affiliation with practices?

Dr. Sharaf Ali Diwan is affiliated with Sharaf Diwan MD PA LLC. For the full list of practices see this list.

What conditions does Dr. Sharaf Ali Diwan treat?

Dr. Sharaf Ali Diwan provides treatment for Genital Herpes, Hand, Foot, and Mouth Disease (HFMD), Listeriosis, Lyme Disease, Rabies, Scabies. For the full list see this list.

Does Dr. Sharaf Ali Diwan accept patients with Ambetter from Superior HealthPlan?

Yes, Dr. Sharaf Ali Diwan is listed in-network for Ambetter from Superior HealthPlan through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.

Where can you meet with Dr. Sharaf Ali Diwan?

Dr. Sharaf Ali Diwan's office is located at 18220 Tomball Parkway Suite 230 in Houston, TX 77070.