Isabel Marcano Bonilla, MD| Endocrinology Diabetes and Metabolism, Internal Medicine | MedStar Health
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Isabel Marcano Bonilla

Isabel Marcano Bonilla, MD
Provider is directly employed by MedStar Health

4.8 out of 5 (1010 reviews)

Specialties: Endocrinology Diabetes and Metabolism, Internal Medicine

Languages: Spanish, English

Clinical areas of focus

  • Glycemic Variability Assessment
  • Graves Disease
  • Hashimoto Thyroiditis
  • Hormone Replacement Therapy
  • Hyperparathyroidism
  • Osteoporosis
  • Pioglitazone Therapy
  • Pituitary Disorders
  • Polycystic Ovary Syndrome
  • Subclinical Hypothyroidism
  • Type 2 Diabetes Mellitus
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Conditions and procedures

Conditions I treat

  • Acromegaly
  • Adrenal Crisis
  • Adrenal Gland Disorder
  • Adrenal Mass
  • Adrenal Tumor
  • Benign Thyroid Nodules
  • Bone Density Disorder
  • Bone Discontinuity
  • Cardiometabolic Disorders
  • Complications Of The Puerperium
  • Congenital Adrenal Hyperplasia
  • Cushing Syndrome
  • Diabetes In Pregnancy
  • Diabetes Insipidus
  • Diabetes Mellitus Due To Underlying Condition
  • Diabetes Mellitus Type 2
  • Diabetic Ketoacidosis
  • Disorders Of Lipoprotein Metabolism And Lipidemias
  • Disorders Of Mineral Metabolism
  • Disorders Of Pancreatic Internal Secretion
  • Disorders Of Pituitary Gland
  • Disorders Of Renal Tubular Function
  • Disorders Of Thyroid
  • Drug Or Chemical Induced Diabetes Mellitus
  • Endocrine Disorders
  • Endocrine Pancreas Disorders
  • Family History Of Malignant Neoplasm
  • Gallbladder Disease
  • Gastrinoma
  • Gestational Diabetes
  • Grave's Disease
  • Hashimoto Thyroiditis
  • High Cholesterol
  • Hyperaldosteronism
  • Hyperfunction Of Pituitary Gland
  • Hyperglycemia
  • Hyperparathyroidism
  • Hyperprolactinemia
  • Hypertrichosis
  • Hypocalcemia
  • Hypoglycemia
  • Hypoparathyroidism
  • Insulin Resistance
  • Lipid Disorders
  • Long Term Drug Therapy
  • Malignant Neoplasm Of Endocrine Glands
  • Menstrual Disorders
  • Multiple Endocrine Neoplasia
  • Neonatal Hypothyroidism
  • Neoplasms Of Lymphoid, Hematopoietic And Related Tissue
  • Nonscarring Hair Loss
  • Nontoxic Goiter
  • Obesity
  • Orbit Disorders
  • Osteochondropathies
  • Osteoporosis
  • Ovarian Cysts
  • Ovarian Dysfunction
  • Panhypopituitarism
  • Parathyroid Cancer
  • Pituitary Adenoma
  • Pituitary Apoplexy
  • Pituitary Cancer
  • Pituitary Disorders
  • Polycystic Ovary Syndrome
  • Polyglandular Dysfunction
  • Postprocedural Complications
  • Prediabetes
  • Presence Of Functional Implants
  • Primary Hyperparathyroidism
  • Proteinuria
  • Subclinical Hypothyroidism
  • Testicular Dysfunction
  • Thyroid Cancer
  • Thyroid Goiter
  • Thyroid Nodules
  • Thyroid Storm
  • Thyrotoxic Crisis
  • Transitional Cell Carcinoma
  • Transitory Neonatal Electrolyte And Metabolic Disturbances
  • Type 2 Diabetes In Children
  • Type 2 Diabetes Mellitus
  • Vitamin Deficiency
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Procedures I perform

  • Adrenal Cancer Treatment
  • Adrenal Crisis Treatment
  • Adrenal Disorder Treatment
  • Adrenal Disorder Treatment With Ketoconazole
  • Adrenal Gland Disease Prevention
  • Adrenal Hormone Regulation
  • Adrenal Insufficiency Treatment
  • Adrenal Tumor Surgery With Ifs
  • Adrenal Tumor Treatment
  • Adrenal Venous Sampling
  • Adrenal Venous Sampling With Cosystropin Stimulation
  • Ammonia Level Test
  • Celiac Plexus Block
  • Cervical Lymph Node Dissection
  • Cosyntropin Stimulation Test
  • Cushing Syndrome Management
  • Dexamethasone Suppression Test
  • Embolization Of Thyroid Metastases To The Spine
  • Enterectomy
  • Enterotomy For Exploration
  • Fine-Needle Aspiration Of Thyroid Nodule
  • Glucose Control Management
  • Glycated Hemoglobin Test
  • Glycemic Variability Assessment
  • Growth Hormone Follow-Up
  • Growth Hormone Level Monitoring
  • Growth Hormone Management
  • Growth Hormone Management With Octreotide
  • Growth Hormone Screening
  • Growth Hormone Stimulation Test
  • Growth Hormone Suppression Test
  • Growth Hormone Suppression Test With Glucose
  • Hormone Imbalance Treatment
  • Hormone Level Regulation
  • Hormone Regulation With Leuprolide
  • Hormone Replacement Therapy
  • Hormone Replacement Therapy In Menopause
  • Insulin Regulation
  • Insulin Resistance Assessment
  • Nutrient Deficiency Screening
  • Parathyroid Cancer Management
  • Parathyroid Cancer Treatment
  • Parathyroid Disease Prevention
  • Parathyroid Disorder Treatment
  • Parathyroid Surgery With Minimally Invasive Technique
  • Parathyroid Tumor Surgery
  • Pioglitazone Therapy
  • Pituitary Cancer Treatment
  • Pituitary Disease Prevention
  • Pituitary Disorder Treatment
  • Pituitary Tumor Embolization
  • Pituitary Tumor Follow-Up
  • Pituitary Tumor Management
  • Pituitary Tumor Surgery
  • Pituitary Tumor Treatment
  • Pituitary Tumor Treatment With Thyroid Hormone Replacement
  • Popliteal Artery Entrapment Syndrome Treatment
  • Posterior Fossa Craniotomy
  • Selective Venous Sampling For Parathyroid Hormone
  • Testicular Ultrasound
  • Thyroid Biopsy
  • Thyroid Biopsy With Ultrasound Guidance
  • Thyroid Cancer Management
  • Thyroid Cancer Treatment
  • Thyroid Disease Management
  • Thyroid Disease Prevention
  • Thyroid Disease Treatment
  • Thyroid Fine-Needle Aspiration Biopsy
  • Thyroid Function Test With Tsh
  • Thyroid Nodule Management
  • Thyroid Nodule Treatment
  • Thyroid Remnant Ablation
  • Thyroid Scan With Uptake
  • Thyroid Ultrasound With Doppler
  • Thyroidectomy
  • Thyroid-Stimulating Hormone Follow-Up
  • Thyroid-Stimulating Hormone Suppression
  • Urea Reduction Ratio Test
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Practice locations

Distance from Change Location Enter your Location

200 E 33rd St
Ste 551
Baltimore, MD, 21218

410-554-4511
Get Directions

miles away

Fax 410-554-6490

Insurance

This list represents the major payors accepted by MedStar Health.

NOTE: Payor contracts change and not all plans associated with a payor may be covered. Payors may offer multiple plans. If you have a question related to your insurance, please contact your insurance plan directly. Contact information is located on your health insurance ID card.

*Denotes limited participation. Specific providers and practices may NOT be participating. Please contact your insurance plan directly.

  • List of insurance plans we accept
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Cigna Health Care
    • Kaiser Permanente*
    • MedStar Select (Administered by CareFirst)
    • United HealthCare
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Healthspring
    • Humana
    • Medicare & Railroad Medicare
    • United HealthCare
    • Aetna Better Health of Maryland *
    • Medical Assistance/Medicaid
    • MedStar Family Choice MD
    • Priority Partners *
    • United HealthCare Community Health Plan MD
    • Wellpoint MD
    • AmeriHealth Caritas
    • Health Services For Children With Special Needs (HSCSN)
    • Medical Assistance/Medicaid
    • MedStar Family Choice DC
    • Johns Hopkins Employer Health Programs *
    • Johns Hopkins US Family Health Plan *
    • MultiPlan
    • Private Healthcare Systems
    • Tricare/Humana Military
    • VA Community Care Network (VACCN)

Education

Board Certification: American Board of Internal Medicine, Endocrinology, Diabetes and Metabolism

Fellowship: University of Maryland Medical Center (2020)

Residency: Temple University Hospital (2018)

Medical School: University of Puerto Rico School of Medicine (2015)

Ratings and reviews

  • Explanations the care provider gave you about your problem or condition

    4.8
  • Extent to which the care provider listened to you

    4.8
  • Care provider’s discussion of any proposed treatment (options, risks, benefits, etc.)

    4.8
  • Provider included you in decisions

    4.8
  • Concern the care provider showed for your questions or worries

    4.8
  • Likelihood of recommending this care provider to others

    4.8
  • Jun 15, 2026

    Listened to my concerns

  • May 11, 2026

    Dr Marcano Bonilla is very helpful,

  • Apr 15, 2026

    Excellent