Paul A. Sack, MD| Internal Medicine, Endocrinology Diabetes and Metabolism | MedStar Health
About me
Paul A. Sack, MD, has been at MedStar Union Memorial Hospital since 2005 after completing his medical training at the University of Maryland, School of Medicine. He is the Chief in the Division of Endocrinology and Metabolism at MedStar Union Memorial Hospital and Good Samaritan Hospital as well as the MedStar Regional Director for Endocrinology in Baltimore. He served as the Chief of the Medical Staff at MedStar Union Memorial Hospital from 2022-2025. He is involved in patient care, clinical research, and the education of medical students, residents, and endocrinology fellows.
Dr. Sack's clinical interests include the management of Type 1 and Type 2 Diabetes, Thyroid Disease, Adrenal Disorders, and Pituitary Diseases. He performs diagnostic thyroid and parathyroid ultrasounds and performs fine needle aspiration of thyroid nodules.
Dr. Sack previously served on the Community Leadership Board for the Maryland Chapter of the American Diabetes Association from 2017-2024. He joined the MedStar Union Memorial Hospital Board of Directors in 2026
Dr. Sack has been named a Top Doctor in Baltimore magazine for Diabetes Care in 2013, 2016, 2017, 2019, 2020, and 2021.
Clinical areas of focus
- Cushing's Syndrome Treatment
- Graves Disease
- Grave's Disease Treatment
- Hashimoto Thyroiditis
- Hormone Replacement Therapy
- Hyperparathyroidism
- Hyperthyroidism
- Hyperthyroidism Treatment
- Hypothyroidism Treatment
- Insulin Therapy For Type 1 Diabetes
- Osteoporosis
- Pioglitazone Therapy
- Subclinical Hypothyroidism
- Type 2 Diabetes Mellitus
Conditions and procedures
Conditions I treat
- Abnormal Function Study Results
- Adrenal Crisis
- Adrenal Gland Disorders (E.G. CUSHING'S SYNDROME, PHEOCHROMOCYTOMA)
- Adrenal Tumor
- Adult Osteomalacia
- Bone Density Disorder
- Cardiometabolic Disorders
- Cushing Syndrome
- Diabetes In Pregnancy
- Diabetes Insipidus
- Diabetes Mellitus Type 2
- 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
- Family History Of Malignant Neoplasm
- Gestational Diabetes
- Grave's Disease
- Hashimoto Thyroiditis
- High Blood Sugar
- High Cholesterol
- Hirsutism
- Hormonal Imbalance
- Hyperaldosteronism
- Hyperfunction Of Pituitary Gland
- Hyperparathyroidism
- Hyperthyroidism
- Hypertrichosis
- Hypocalcemia
- Hypoglycemia
- Hypoparathyroidism
- Insulin Resistance
- Lipid Disorders
- Long Term Drug Therapy
- Low Testosterone Levels
- Malignant Neoplasm Of Endocrine Glands
- Metabolic Syndrome
- Nonscarring Hair Loss
- Nontoxic Goiter
- Obesity
- Osteochondropathies
- Osteoporosis
- Ovarian Cysts
- Ovarian Dysfunction
- Personal History Of Medical Treatment
- Pituitary Adenoma
- Polycystic Ovary Syndrome
- Postmenopausal Osteoporosis
- Prediabetes
- Primary Hyperparathyroidism
- Proteinuria
- Subclinical Hypothyroidism
- Testicular Dysfunction
- Thyroid Cancer
- Thyroid Goiter
- Thyroid Nodules
- Thyrotoxic Crisis
- Type 2 Diabetes In Children
- Type 2 Diabetes Mellitus
- Vitamin Deficiency
- Zollinger
Procedures I perform
- A1c Testing
- Acromegaly Treatment
- Adrenal Hormone Deficiency Treatment
- Adrenal Tumor Treatment
- Bone Density Testing
- Continuous Glucose Monitoring System
- Cushing's Syndrome Treatment
- Dexamethasone Suppression Test
- Familial Hypocalciuric Hypercalcemia (FHH) Treatment
- Fine-Needle Aspiration Of Thyroid Nodule
- Galactorrhea Treatment
- Glucose Control Management
- Goiter Treatment
- Grave's Disease Treatment
- Growth Hormone Follow-Up
- Growth Hormone Stimulation Test
- Gynecomastia Treatment
- Hashimoto's Thyroiditis Treatment
- Hormone Replacement Therapy
- Hormone Replacement Therapy In Menopause
- Hormone Therapy For Low Testosterone
- Hyperparathyroidism-Jaw Tumor Syndrome Treatment
- Hyperprolactinemia Treatment
- Hyperthyroidism Treatment
- Hypoparathyroidism Treatment
- Hypothyroidism Treatment
- Incretin Testing
- Insulin Therapy For Type 1 Diabetes
- Mccune-Albright Syndrome Treatment
- Multiple Endocrine Neoplasia (MEN) Testing
- Myxedema Coma Treatment
- Nutrition Counseling
- Obesity Treatment
- Oral Medication Therapy For Diabetes
- Osteopenia Treatment
- Osteoporosis Prevention Treatment
- Paget's Disease Treatment
- Parathyroid Cancer Treatment
- Pheochromocytoma Treatment
- Pheochromocytoma-Paraganglioma Syndrome Treatment
- Pioglitazone Therapy
- Pituitary Apoplexy Treatment
- Pituitary Cancer Treatment
- Pituitary Hormone Deficiency Treatment
- Pituitary Tumor Treatment
- Polycystic Ovary Syndrome (PCOS) Treatment
- Prolactinoma Treatment
- Thyroid Biopsy
- Thyroid Cancer Treatment
- Thyroid Hormone Deficiency Treatment
- Thyroid Lymphoma Treatment
- Thyroid Metastasis Treatment
- Thyroid Storm Treatment
- Thyroidectomy
- Thyroiditis Treatment
- Toxic Multinodular Goiter Treatment
- Von Hippel-Lindau Disease Treatment
Insurance
MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.
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List of insurance plans we accept
- Great-West Healthcare POS/CIGNA
- Optimum Choice
- United Healthcare Community Plan - VA Medicaid MCO
- CareFirst Maryland Point of Service Plan
- Cigna Alliance Medicare (HMO)
- CareFirst FEP Blue Focus
- CIGNA HMO & Network (HMO)
- Amerigroup DC Alliance
- First Health PPO
- Kaiser Permanente Select
- Kaiser Maryland Medicaid MCO
- Choice Care Network/HUMANA (PPO)
- Aetna Classic 5000PD
- Private Fee-for-Service Plans (PFFS)
- OCI Direct (HMO)
- AMERIVANTAGE/Amerigroup Community Care
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Medicare Direct
- Aetna Classic 3500
- CIGNA HMO Open Access
- TRICARE for Life East
- IH-Open POS II
- WellPoint Maryland - Maryland Health Choice
- Aetna Basic
- IH-EPO Plus
- BlueChoice Open Access
- Optimum Choice Preferred (POS)
- Choice Fund PPO
- Healthy Blue (HMO, POS)
- Sentara Health
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Geisinger Medicare Advantage
- Coventry Health Care of Virginia
- IH-Network Only Plus
- M.D. IPA (HMO)
- Advantra Platinum (PPO)
- CareFirst Federal Employee Program (Std. & Basic PPO)
- IH-Open Network Only Plus
- Anthem Federal Employee Program Basic
- United Healthcare Select HMO - EPO/NPP
- Humana Medicare Advantage - HMO Open Access
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- CIGNA PPO Plus
- Johns Hopkins Advantage MD PPO
- Maryland Physicians Care MCO
- M.D. IPA Preferred (POS)
- NYC Medicare Advantage Plus
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Aetna Traditional Choice (PPO)
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Aetna Advantage 5750
- IH-HMO
- DC/MD SHOP QHP Small Business Plans
- Aetna Better Health of MD
- United Healthcare Navigate Cardiac Global
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Medicare FFS
- Anthem BCBS Medi Blue Dual Adv
- Core Essential (HMO)
- Aetna Classic 5000
- Cigna Preferred Medicare (HMO)
- United Healthcare Choice Cardiac Global
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- CareFirst Community Health Plan of MD
- Amerigroup DC Healthy Families
- Kaiser Permanente Signature - Added Choice
- Kaiser Permanente Select - Added Choice
- Health Services for Children with Special Needs
- United Healthcare Select Plus (POS)
- MedStar Family Choice DC Healthcare Alliance
- Aetna Signature Administrator PPO/TPA
- CareFirst MedStar Select PPO
- CareFirst Dual Prime HMO-SNP
- CIGNA Connect EPO
- UnitedHealthcare and AARP Medicare Complete Plans
- CareFirst Blue Preferred PPO
- Alterwood Advanatge HMO & DSNP Plans
- Aetna Medicare Advantage HMO & PPO Plans
- Cigna Achieve Medicare (HMO C-SNP)
- Kaiser Permanente Medicare Plus
- MedStar Family Choice - Maryland Health Choice
- IH-Indemnity
- Anthem BCBS Medi Blue SNP
- Aetna Open Choice (PPO)
- United HealthCare Community Plan - Maryland Health Choice Program
- Optima Family Care MCO - VA Medicaid MCO
- Cigna TotalCare (HMO D-SNP)
- Mamsi Life & Health (Indem./PPO)
- Anthem BCBS of VA HealthKeepers (HMO)
- Aetna Managed Choice (POS)
- CareFirst Administrators
- Select HMO/HealthFund/Health Network
- Aetna Better Health of VA
- Cigna True Choice Medicare (PPO)
- Tricare Reserve Select
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Options PPO Cardiac Global
- Kaiser Permanente Flexible Choice 3-tier POS
- United Healthcare Choice Plus
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- CareFirst Blue Choice Opt Out Open Access
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Aetna HMO
- IH-Open HMO
- Aetna Managed Choice Open Access (POS)
- CIGNA POS/Network POS
- CareFirst NASCO
- Aetna Elect Choice/ Open Access (POS)
- Choice POS II
- CareFirst (NCA) Indemnity
- Employee Health Plan
- Navigate
- HumanaChoice Honor's plan PPO
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Magellan Complete Care of VA - VA Medicaid MCO
- Humana Gold Plus HMO
- CIGNA PPO
- Aetna Premier 200PD
- United Healthcare Choice
- UnitedHealthcare Individual Exchange Plans
- CareFirst Maryland Indemnity or PPO
- Aetna Advantage 6350PD
- Blue Choice Advantage
- Uniformed Services Family Health Plan
- Kaiser Permanente Select Cardiac Global
- HealthyBlue PPO
- Coventry of Delaware HMO/PPO
- CareFirst BlueChoice HMO
- Police and Fire Clinic
- AmeriHealth Caritas DC Healthy Families
- Aetna Medicare Advantage PFFS Plan
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Network OA
- Aetna Student Health Insurance
- Anthem BCBS Medi Blue Plus
- CIGNA SureFit (HMO)
- MedStar Family Choice DC Healthy Families
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Anthem BCBS of VA HealthKeepers Plus
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Priority Partners - Maryland Health Choice
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- IH-Open EPO Plus
- Aetna Worker's Compensation Network
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Humana Medicare Advantage - PPO
- TriWest Healthcare Alliance
- Aetna Advantage 6350
- Cigna True Choice Plus Medicare (PPO)
- Johns Hopkins Advantage MD PLUS PPO
- Erickson Advantage Plans
- UHC Passport
- TRICARE East Select
- CIGNA EPO
- Beech Street PPO
- POS OA
- Kaiser Permanente Medicare Advantage Signature and Select
- MultiPlan, Inc
- IH-PPO
- Johns Hopkins Advantage MD HMO
- HumanaChoice PPO
- CareFirst EPO
- IH-POS Plus
- Coventry Health Care National Network PPO
- Anthem Federal Employee Program Standard
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- CareFirst MedStar PPO
- Aetna VA Exchange
- United Student Resources
- IH-Open POS Plus
- IH-POS
- Aetna Quality Point of Service (POS)
- TRICARE East Prime
- First Health PPO
- Choice POS
- Jai Medical Systems - Maryland Health Choice
- Choice POS II Open Access
- Kaiser Permanente Signature
- Private Health Care Systems (PPO)
- United Healthcare Options (PPO)
- CIGNA Indemnity
- HighMark
- OA Plus
- Veterans Affairs Community Care Network
- Lasso Healthcare - Medicare Medical Savings Account
- IH-Open HMO Option
- AmeriHealth Caritas DC Healthcare Alliance
- United Healthcare Choice Plus Cardiac Global
- CareFirst Group Medicare Advantage
- Medicare Advantage - Advantra Value (PPO)
- United Medicare Private Fee-for-Service (PFFS) plans
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- CareFirst Blue Card Program
Videos
Education
Board Certification: American Board of Internal Medicine, Internal Medicine
Fellowship: University of Maryland Medical Center (2005)
Residency: University of Maryland Medical Center (2003)
Medical School: University of Maryland School of Medicine (2000)
Awards
- 2013, 2016, 2017, 2019, 2020, 2021 Top Doctor, Baltimore magazine
Hospital affiliations
News and publications
- Damcott CM, Sack P, Shuldiner AR. The genetics of obesity. Endocrinology & Metabolism Clinics of North America. 32(4):761-86, 2003 Dec.
- Streeten ES, Mohamed A, Ghandi A, Orwig D, Sack P, Sterling R, Pellegrini VD. The Inpatient Consultation Approach to Osteoporosis Treatment in Patients with Fracture. Is Automatic Consultation Needed? The Journal of Bone and Joint Surgery. 88:1968-1974, 2006.
- Post W, Shen H, Damcott C, Arking DE, Kao WHL, Sack PA, Ryan KA, Chakravarti A, Mitchell BD, Shuldiner AR. Associations between Genetic Variants in the NOS1AP (CAPON) Gene and Cardiac Repolarization in the Old Order Amish. Human Heredity. 64: 214-219, 2007.
- Roy-Gagnon MH. Weir MR. Sorkin JD. Ryan KA. Sack PA. Hines S. Bielak LF. Peyser PA. Post W. Mitchell BD. Shuldiner AR. Douglas JA. Genetic influences on blood pressure response to the cold pressor test: results from the Heredity and Phenotype Intervention Heart Study. [Journal Article. Research Support, N.I.H., Extramural. Research Support, Non-U.S. Gov't. Research Support, U.S. Gov't, Non-P.H.S.] Journal of Hypertension. 26(4):729-36, 2008 Apr.
- Mitchell BD. McArdle PF. Shen H. Rampersaud E. Pollin TI. Bielak LF. Jaquish C. Douglas JA. Roy-Gagnon MH. Sack P. Naglieri R. Hines S. Horenstein RB. Chang YP. Post W. Ryan KA. Brereton NH. Pakyz RE. Sorkin J. Damcott CM. O'Connell JR. Mangano C. Corretti M. Vogel R. Herzog W. Weir MR. Peyser PA. Shuldiner AR. The genetic response to short-term interventions affecting cardiovascular function: rationale and design of the Heredity and Phenotype Intervention (HAPI) Heart Study. [Journal Article. Research Support, N.I.H., Extramural. Research Support, Non-U.S. Gov't] American Heart Journal. 155(5):823-8, 2008 May.
- Evadnie Rampersaud, MSPH, PhD; Braxton D. Mitchell, PhD; Toni I. Pollin, PhD; Mao Fu, PhD; Haiqing Shen, PhD; Jeffery R. O’Connell, PhD; Julie L. Ducharme, MD; Scott Hines, MD; Paul Sack, MD; Rosalie Naglieri, MD; Alan R. Shuldiner, MD; Soren Snitker, MD, PhD. Physical Activity and the Association of Common FTO Gene Variants With Body Mass Index and Obesity. Arch Intern Med. 2008;168(16):1791-1797.
- Streeten EA. McBride D. Puffenberger E. Hoffman ME. Pollin TI. Donnelly P. Sack P. Morton H. Osteoporosis-pseudoglioma syndrome: description of 9 new cases and beneficial response to Bisphosphonates. Bone. 43(3):584-90, 2008 Sep.
- Shen H. Herzog W. Drolet M. Pakyz R. Newcomer S. Sack P. Karon H. Ryan KA. Zhao Y. Shi X. Mitchell BD. Shuldiner AR. Aspirin Resistance in healthy drug-naive men versus women (from the Heredity and Phenotype Intervention Heart Study). American Journal of Cardiology. 104(4):606-12, 2009 Aug 15.
- Elena Forouhar and Paul Sack. Non-traditional therapies for diabetes: Fact or Fiction? Journal of Community Hospital Internal Medicine Perspectives. 2(2), 2012 July 16.
- Elena Forouhar and Paul Sack. Non-traditional therapies for diabetes: Fact or Fiction? Journal of Community Hospital Internal Medicine Perspectives. 2(2), 2012 July 16.