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
- United Healthcare Community Plan - VA Medicaid MCO
- Optimum Choice
- Great-West Healthcare POS/CIGNA
- Cigna Alliance Medicare (HMO)
- CareFirst Maryland Point of Service Plan
- CareFirst FEP Blue Focus
- CIGNA HMO & Network (HMO)
- Kaiser Permanente Select
- First Health PPO
- Amerigroup DC Alliance
- Kaiser Maryland Medicaid MCO
- Choice Care Network/HUMANA (PPO)
- Private Fee-for-Service Plans (PFFS)
- Aetna Classic 5000PD
- OCI Direct (HMO)
- AMERIVANTAGE/Amerigroup Community Care
- Medicare Direct
- Kaiser Permanente HMO Plus and DHMO Plus Member
- CIGNA HMO Open Access
- Aetna Classic 3500
- TRICARE for Life East
- WellPoint Maryland - Maryland Health Choice
- IH-Open POS II
- Optimum Choice Preferred (POS)
- BlueChoice Open Access
- IH-EPO Plus
- Aetna Basic
- Choice Fund PPO
- Geisinger Medicare Advantage
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Sentara Health
- Healthy Blue (HMO, POS)
- Coventry Health Care of Virginia
- M.D. IPA (HMO)
- IH-Network Only Plus
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Advantra Platinum (PPO)
- United Healthcare Select HMO - EPO/NPP
- Anthem Federal Employee Program Basic
- IH-Open Network Only Plus
- 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
- NYC Medicare Advantage Plus
- M.D. IPA Preferred (POS)
- Aetna Traditional Choice (PPO)
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Kaiser Permanente Flexible Choice POS Cardiac Global
- IH-HMO
- Aetna Advantage 5750
- DC/MD SHOP QHP Small Business Plans
- Aetna Better Health of MD
- United Healthcare Navigate Cardiac Global
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Medicare FFS
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Core Essential (HMO)
- Anthem BCBS Medi Blue Dual Adv
- 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
- CareFirst MedStar Select PPO
- Aetna Signature Administrator PPO/TPA
- CareFirst Dual Prime HMO-SNP
- UnitedHealthcare and AARP Medicare Complete Plans
- CIGNA Connect EPO
- Alterwood Advanatge HMO & DSNP Plans
- CareFirst Blue Preferred PPO
- Aetna Medicare Advantage HMO & PPO Plans
- MedStar Family Choice - Maryland Health Choice
- Kaiser Permanente Medicare Plus
- Cigna Achieve Medicare (HMO C-SNP)
- Anthem BCBS Medi Blue SNP
- IH-Indemnity
- Optima Family Care MCO - VA Medicaid MCO
- United HealthCare Community Plan - Maryland Health Choice Program
- Aetna Open Choice (PPO)
- Cigna TotalCare (HMO D-SNP)
- Mamsi Life & Health (Indem./PPO)
- Anthem BCBS of VA HealthKeepers (HMO)
- Aetna Managed Choice (POS)
- CareFirst Administrators
- Tricare Reserve Select
- Cigna True Choice Medicare (PPO)
- Aetna Better Health of VA
- Select HMO/HealthFund/Health Network
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Options PPO Cardiac Global
- United Healthcare Choice Plus
- Kaiser Permanente Flexible Choice 3-tier POS
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- CareFirst Blue Choice Opt Out Open Access
- CIGNA POS/Network POS
- Aetna Managed Choice Open Access (POS)
- IH-Open HMO
- Aetna HMO
- CareFirst NASCO
- CareFirst (NCA) Indemnity
- Choice POS II
- Aetna Elect Choice/ Open Access (POS)
- 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
- UnitedHealthcare Individual Exchange Plans
- United Healthcare Choice
- CareFirst Maryland Indemnity or PPO
- Aetna Advantage 6350PD
- Uniformed Services Family Health Plan
- Blue Choice Advantage
- Kaiser Permanente Select Cardiac Global
- HealthyBlue PPO
- Coventry of Delaware HMO/PPO
- Police and Fire Clinic
- CareFirst BlueChoice HMO
- AmeriHealth Caritas DC Healthy Families
- Network OA
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Aetna Medicare Advantage PFFS Plan
- Anthem BCBS Medi Blue Plus
- Aetna Student Health Insurance
- MedStar Family Choice DC Healthy Families
- CIGNA SureFit (HMO)
- 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
- Humana Medicare Advantage - PPO
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Aetna Worker's Compensation Network
- TriWest Healthcare Alliance
- Aetna Advantage 6350
- Johns Hopkins Advantage MD PLUS PPO
- Cigna True Choice Plus Medicare (PPO)
- UHC Passport
- Erickson Advantage Plans
- TRICARE East Select
- CIGNA EPO
- Kaiser Permanente Medicare Advantage Signature and Select
- POS OA
- Beech Street PPO
- MultiPlan, Inc
- Johns Hopkins Advantage MD HMO
- IH-PPO
- HumanaChoice PPO
- CareFirst EPO
- Coventry Health Care National Network PPO
- IH-POS Plus
- Anthem Federal Employee Program Standard
- CareFirst MedStar PPO
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- United Student Resources
- Aetna VA Exchange
- IH-Open POS Plus
- Aetna Quality Point of Service (POS)
- IH-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
- Lasso Healthcare - Medicare Medical Savings Account
- Veterans Affairs Community Care Network
- AmeriHealth Caritas DC Healthcare Alliance
- IH-Open HMO Option
- United Healthcare Choice Plus Cardiac Global
- CareFirst Group Medicare Advantage
- United Medicare Private Fee-for-Service (PFFS) plans
- Medicare Advantage - Advantra Value (PPO)
- 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.