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Dr. Jeffrey Hallazgo, MD

Creve Coeur, MO

35 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Hallazgo, Internist in Creve Coeur, MO?

    Dr. Jeffrey Hallazgo, MD is an Internist, who primarily practices in Creve Coeur, MO with 2 additional practice locations. He has been practicing for over 35 years. Dr. Hallazgo is fluent in English, and is currently seeing new patients. Dr. Hallazgo’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Hallazgo’s office at (314) 966-9100.

    Where did Dr. Hallazgo go to medical school and complete their residency?

      What languages does Dr. Hallazgo speak?

      Dr. Hallazgo and their clinical team can communicate with patients in the following languages:

      • English

      What conditions does an Internist like Dr. Hallazgo typically treat?

      As an Internist, Dr. Hallazgo diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Hallazgo. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.

      Also known as:

      • Routine Adult Health Checkup
      • Health Checkup
      • Adult physical exam
      • Annual wellness visit for adults
      • General adult medical exam

      ICD-10 Codes:

      • Z0000: Encounter for general adult medical examination without abnormal findings

      Also known as:

      • Immunization Visit
      • Vaccines
      • Vaccination appointment
      • Shot visit
      • Immunization encounter

      ICD-10 Codes:

      • Z23: Encounter for immunization

      Also known as:

      • Mammogram for Breast Cancer Screening
      • Health Screening
      • Mammography
      • Breast Cancer Screening (PDQ®)
      • Mammograms
      • Breast X-ray
      • Breast Cancer Check

      ICD-10 Codes:

      • Z1231: Encounter for screening mammogram for malignant neoplasm of breast

      Also known as:

      • Adult Health Checkup with Abnormal Findings
      • Health Checkup
      • Adult Physical Exam with Issues
      • Routine Checkup with Concerns
      • General Medical Exam with Abnormal Results

      ICD-10 Codes:

      • Z0001: Encounter for general adult medical examination with abnormal findings

      Also known as:

      • High Blood Pressure
      • Hypertension
      • Primary Hypertension
      • Essential Hypertension

      ICD-10 Codes:

      • I10: Essential (primary) hypertension

      Also known as:

      • Follow-up After Treatment (Non-Cancer)
      • Post-Treatment Check-up
      • Aftercare Visit
      • Recovery Monitoring Exam

      ICD-10 Codes:

      • Z09: Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm

      Also known as:

      • Low Back Pain
      • Back Pain
      • Lumbago
      • Lower Back Ache
      • Backache

      ICD-10 Codes:

      • M5450: Low back pain, unspecified

      What procedures does an Internist like Dr. Hallazgo typically perform?

      As an Internist, procedures performed by Dr. Jeffrey Hallazgo may include:

      Please contact Dr. Hallazgo's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.

      Does Dr. Hallazgo accept my insurance?

      Dr. Hallazgo accepts most major insurance plans. Important: Please call our office at (314) 966-9100 before your appointment to verify that your specific plan and network are accepted.

      What insurance plans does Dr. Hallazgo accept in Creve Coeur, MO?

      Dr. Hallazgo in Creve Coeur, MO accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

      Top Insurances

      • Cigna Group

      • CVS Health (formerly Aetna)

      • Elevance Health Inc. (formerly Anthem)

      • Medicare

      • UnitedHealth Group

      View All Insurances

      Where is Dr. Hallazgo's office located?

      Dr. Jeffrey Hallazgo's Primary Practice

      12680 Olive Blvd Ste 100

      Creve Coeur, MO 63141

      (314) 966-9100

      Get Directions

      Dr. Jeffrey Hallazgo's Practice 2

      714 Gravois Rd Ste 100

      Fenton, MO 63026

      Get Directions

      Dr. Jeffrey Hallazgo's Practice 3

      950 Francis Pl

      Clayton, MO 63105

      Get Directions

      What is Dr. Hallazgo's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

      Dr. Hallazgo's National Provider Identifier (NPI) number is 1073538302.

      What common questions do patients ask about Dr. Hallazgo?

      Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Hallazgo

      What is Dr. Jeffrey Hallazgo's specialty?

      Dr. Hallazgo is an Internist near Creve Coeur, MO.

      What does an Internist do?

      A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

      Is Dr. Jeffrey Hallazgo affiliated with a ranked Castle Connolly Top Hospital?

      Yes, Dr. Hallazgo is affiliated with Mercy Hospital St. Louis, Mercy Hospital South, Missouri Baptist Medical Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

      When to see an Internist?: Guides for symptoms, conditions, and treatments

      Understand your symptoms and know when it’s time to see an Internist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

      Is Dr. Jeffrey Hallazgo accepting new patients in Creve Coeur, MO?

      Yes, Dr. Jeffrey Hallazgo is accepting new patients at this time.

      Does Dr. Jeffrey Hallazgo offer online booking?

      Please contact Dr. Hallazgo's office at (314) 966-9100 for information about online booking, telehealth, or to schedule an appointment.

      How can I make an appointment with Dr. Jeffrey Hallazgo?

      Please contact Dr. Hallazgo's office at (314) 966-9100 to schedule an appointment.

      Where is Dr. Hallazgo's office located?

      Dr. Hallazgo's offices are located in Creve Coeur, MO, Fenton, MO, and Clayton, MO.