37 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Diaz-Johnson, Internist in Union, NJ?
Dr. Nereida Diaz-Johnson, MD is an Internist, who primarily practices in Union, NJ. She has been practicing for over 37 years and is board certified by the American Board of Internal Medicine. Dr. Diaz-Johnson graduated from Icahn School of Medicine at Mount Sinai and completed her residency at Beth Israel Medical Center, New York. Dr. Diaz-Johnson is fluent in English and Spanish, and is currently seeing new patients. Dr. Diaz-Johnson’s practice accepts Cigna, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Diaz-Johnson’s office at (908) 688-5000.
Where did Dr. Diaz-Johnson go to medical school and complete their residency?
Residency: Beth Israel Medical Center, New York | Beth Israel Deaconess Medical Center Program
Medical School: Icahn School of Medicine at Mount Sinai
Is Dr. Diaz-Johnson board certified in Internist?
Yes, Dr. Nereida Diaz-Johnson, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Diaz-Johnson speak?
Dr. Diaz-Johnson and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Diaz-Johnson treat?
As a Internist, Dr. Diaz-Johnson 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. Diaz-Johnson. 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.
Also known as:
- High Cholesterol
- Cholesterol
- Triglycerides
- Hyperlipidemia
- High lipids
- Dyslipidemia
ICD-10 Codes:
- E785: Hyperlipidemia, unspecified
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:
- Vitamin B12 Deficiency Anemia
- Anemia
- B Vitamins
- B12 Anemia
- Dietary B12 Anemia
- Cobalamin Deficiency Anemia
ICD-10 Codes:
- D519: Vitamin B12 deficiency anemia, unspecified
Also known as:
- Type 2 Diabetes with High Blood Sugar
- Type 2 Diabetes
- Diabetes Type 2
- Hyperglycemia
- Type 2 diabetes
- Diabetic Hyperglycemia
- High Blood Glucose
- High Sugar Levels
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E1165: Type 2 diabetes mellitus with hyperglycemia
- E119: Type 2 diabetes mellitus without complications
Also known as:
- Vitamin D Deficiency
- Low Vitamin D Levels
- Lack of Vitamin D
- Hypovitaminosis D
ICD-10 Codes:
- E559: Vitamin D deficiency, unspecified
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- Overweight
- Obesity
- Body Weight
- Helping Your Child Who Is Overweight
- Take Charge of Your Health: A Guide for Teenagers
- Understanding Adult Overweight & Obesity
- Excess Weight
- High BMI (Overweight)
- Pre-Obesity
- Being Overweight
- High BMI
ICD-10 Codes:
- E663: Overweight
- E669: Obesity, unspecified
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
Also known as:
- Anemia
- Iron Deficiency Anemia
- Iron
- Low Red Blood Cell Count
- Low Hemoglobin
- Iron deficiency
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
ICD-10 Codes:
- D649: Anemia, unspecified
- D509: Iron deficiency anemia, unspecified
Also known as:
- Hypothyroidism
- Congenital hypothyroidism
- Hypothyroidism (Underactive Thyroid)
- Underactive Thyroid
- Low Thyroid Function
ICD-10 Codes:
- E039: Hypothyroidism, unspecified
Also known as:
- Other Specific B Vitamin Deficiency
- B Vitamins
- Malnutrition
- Specific B Vitamin Shortage
- Less Common B Vitamin Deficiency
- Rare B Vitamin Deficiency
ICD-10 Codes:
- E538: Deficiency of other specified B group vitamins
Also known as:
- High Blood Pressure Heart and Kidney Disease
- Chronic Kidney Disease
- High Blood Pressure
- Hypertensive Cardiorenal Disease
- Heart and Kidney Problems from High Blood Pressure
ICD-10 Codes:
- I1310: Hypertensive heart and chronic kidney disease without heart failure, with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
Also known as:
- Hardening of Heart Arteries from Fatty Deposits
- Atherosclerosis
- Coronary Artery Disease
- Coronary atherosclerosis
- Plaque buildup in heart arteries
- Lipid-rich plaque in coronary arteries
ICD-10 Codes:
- I2583: Coronary atherosclerosis due to lipid rich plaque
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:
- Mild Intermittent Asthma
- Asthma
- Occasional Asthma
- Mild Asthma Attacks
- Infrequent Asthma
ICD-10 Codes:
- J4520: Mild intermittent asthma, uncomplicated
Also known as:
- Prediabetes
- Insulin Resistance & Prediabetes
- Borderline diabetes
- Insulin resistance
- High blood sugar (not yet diabetes)
ICD-10 Codes:
- R7303: Prediabetes
Which procedures does Dr. Diaz-Johnson perform as a Internist?
As a Internist, procedures performed by an Dr. Nereida Diaz-Johnson may include:
- Ambulatory Care Consultation
- Annual Check Up
- Annual Physical
- Aromatherapy
- Bladder and Bowel Management
- Blood Pressure Testing
- Bowel and Bladder Management
- Certified Medical Examination for Commercial Driver / Vessel Master
For detailed information, please contact Dr. Diaz-Johnson's office.
Does Dr. Diaz-Johnson accept my insurance?
Dr. Diaz-Johnson accepts most major insurance plans. Important: Please call our office at (908) 688-5000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Diaz-Johnson accept in Union, NJ?
Dr. Diaz-Johnson in Union, NJ accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Assurant
Carepoint Health
Cigna
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Highmark Inc.
Horizon BlueCross BlueShield
Independence Blue Cross
Medicaid
UnitedHealthcare
View All Insurances
Where is Dr. Diaz-Johnson's office located?
Dr. Nereida Diaz-Johnson's Primary Practice
2333 Morris Ave Ste A109
Union, NJ 07083
(908) 688-5000
What is Dr. Diaz-Johnson's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Diaz-Johnson's National Provider Identifier (NPI) number is 1013939917.
What common questions do patients ask about Dr. Diaz-Johnson?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Diaz-Johnson
What is Dr. Nereida Diaz-Johnson's specialty?
Dr. Diaz-Johnson is a Internist near Union, NJ.
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.
Contact Dr. Diaz-Johnson to book an appointment today.Is this Dr. Nereida Diaz-Johnson affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Diaz-Johnson is affiliated with Overlook Medical Center, Hunterdon Medical Center, Morristown 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
Where can I learn more about Internist?
Explore Internist with 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 Nereida Diaz-Johnson accepting new patients in Union, NJ?
Yes, Dr. Nereida Diaz-Johnson is accepting new patients at this time.
Does Dr. Nereida Diaz-Johnson offer online booking?
Please contact Dr. Diaz-Johnson's office at (908) 688-5000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Nereida Diaz-Johnson?
Please contact Dr. Diaz-Johnson's office at (908) 688-5000 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Nereida Diaz-Johnson have?
Dr. Nereida Diaz-Johnson is certified by the American Board of Internal Medicine.
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