Katharine Danielle Harper, MBBCH MD| Orthopedic Surgery, Hip And Knee Orthopedic Surgery | MedStar Health
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Katharine Danielle Harper

Katharine Danielle Harper, MBBCH MD
Provider is directly employed by MedStar Health

4.9 out of 5 (288 reviews)

Specialties: Orthopedic Surgery, Hip And Knee Orthopedic Surgery

Languages: English

About me

Dr. Harper is a board certified, fellowship trained orthopedic surgeon who specializes in joint replacements of the hip and knee. Her expertise spans the full spectrum of care for joint replacements, including:

  • Osteoarthritis of the hip and knee
  • Hip and knee pain
  • Simple primary hip and knee replacements
  • Same day surgery and early recovery hip and knee surgery
  • Complex revisions
  • Multiple revised joints
  • Fractures and infections that occur around a replacement hip or knee joint

She has special expertise in the management of hip abductor muscle injuries in patients with and without hip replacements, having assisted in developing surgical techniques and the classification of this injury.

She takes the time to thoroughly discuss treatment options, surgical approach, and post-operative recovery so each patient is optimized for success. When making medical decisions, Dr. Harper serves as a guide for her patients and allows them to ask any questions they may have to feel comfortable with their decision. She takes pride in being available for her patients whenever an issue or question may arise.

Dr. Harper earned her medical degree at the Royal College of Surgeons in Dublin, Ireland and completed her residency in orthopedic surgery at Temple University Hospital in Philadelphia. She completed a fellowship in adult reconstruction at Houston Methodist Hospital.

Dr. Harper is an active researcher who has been published in numerous peer-reviewed journals, written book chapters, and presented at national conferences. Her areas of research involve novel and innovative ways to treat infections, developing new surgical techniques to manage soft tissue complications of the hip and knee, and improving outcomes of joint replacements. She is a member of the American Academy of Orthopedic Surgeons, the Association of Women Surgeons, and the American Association of Hip and Knee Surgeons.

A former collegiate hockey player, when she’s not working Dr. Harper likes to stay in shape by hiking and cycling with her husband and young son. She also enjoys carpentry and has completed several custom cutting boards by applying some of the same skills she uses in the operating room to create beautiful works of art.

Clinical areas of focus

  • Arthritis
  • Arthroplasty
  • Avascular Necrosis Treatment
  • Custom Knee Implants
  • Hip And Knee Pain Management
  • Hip And Knee Reconstruction
  • Hip Arthritis Treatment
  • Hip Arthroplasty
  • Hip Osteoarthritis
  • Hip Pain
  • Hip Prosthesis Failure
  • Infected Hip Prosthesis
  • Infected Knee Prosthesis
  • Joint Replacement
  • Knee Implant Failure
  • Knee Pain
  • Knee Replacement
  • Osteoarthritis
  • Periprosthetic Fracture
  • Revision Of Total Hip Arthroplasty
  • Revision Of Total Knee Arthroplasty
  • Total Knee Replacement Complications
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Conditions and procedures

Conditions I treat

  • Arthritis
  • Arthropathy
  • Cartilage Damage
  • Complications Of Procedures
  • Femur (THIGH BONE) Fracture
  • Hip Bursitis
  • Hip Flexor Strain
  • Hip Fracture
  • Hip Impingement
  • Hip Implant Infection
  • Hip Joint Derangement
  • Hip Joint Dislocation
  • Hip Osteoarthritis
  • Hip Pain
  • Hip Prosthesis Failure
  • Hip Tendinitis
  • Infected Hip Prosthesis
  • Infected Knee Prosthesis
  • Infected Total Knee Replacement
  • Joint Derangement Of Knee
  • Joint Disorder
  • Joint Infection (SEPTIC ARTHRITIS)
  • Knee Bursitis
  • Knee Degenerative Joint Disease
  • Knee Fracture
  • Knee Impingement
  • Knee Implant Failure
  • Knee Implant Infection
  • Knee Pain
  • Knee Stiffness
  • Leg Length Discrepancy
  • Loosening Of Hip Prosthesis
  • Lower Leg Fracture
  • Lower Leg Injury
  • Orthopedic Implant Complications
  • Osteoarthritis
  • Osteonecrosis
  • Patellofemoral Pain Syndrome
  • Periprosthetic Fracture
  • Rheumatoid Arthritis
  • Total Knee Replacement Complications
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Procedures I perform

  • Arthrocentesis
  • Arthroplasty
  • Avascular Necrosis Treatment
  • Bone Infection Treatment
  • Bursitis Treatment
  • Conversion Of Previous Hip Surgery
  • Custom Knee Implants
  • Hip And Knee Pain Management
  • Hip And Knee Reconstruction
  • Hip Arthritis Surgery
  • Hip Arthritis Treatment
  • Hip Arthroplasty
  • Hip Joint Injection
  • Hip Joint Replacement
  • Hip Surgery
  • Intertrochanteric Fracture Treatment
  • Joint Infection Treatment
  • Joint Replacement
  • Knee Joint Resurfacing
  • Knee Pain Management
  • Knee Replacement
  • Knee Synovial Fluid Analysis
  • Knee Viscosupplementation
  • Ligament Sprain Treatment
  • Minimally Invasive Hip Replacement
  • Osteomyelitis Treatment
  • Prepatellar Bursitis Treatment
  • Reconstructive Surgery
  • Reposition Acetabulum
  • Revision Of Total Hip Arthroplasty
  • Revision Of Total Knee Arthroplasty
  • Robotic Hip Surgery
  • Total Hip Arthroplasty
  • Total Hip Replacement
  • Total Joint Replacement
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Practice locations

Distance from Change Location Enter your Location

18109 Prince Philip Dr
Ste 125
Olney, MD, 20832

301-774-8958
Get Directions

miles away

Fax 410-354-2985

18109 Prince Philip Dr
Ste 125
Olney, MD, 20832

301-774-8958
Get Directions

miles away

Fax 410-354-2985

1133 21st St NW
Bldg 2 10th Fl
Washington, DC, 20036

202-416-2000
Get Directions

miles away

Fax 202-444-7333

3305 N Leisure World Blvd
Silver Spring, MD, 20906

301-774-8958
Get Directions

miles away

Fax 410-354-2985

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.

  • List of insurance plans we accept
    • Johns Hopkins Advantage MD PPO
    • AMERIVANTAGE/Amerigroup Community Care
    • MedStar Family Choice DC Healthcare Alliance
    • IH-Open EPO Plus
    • Medicare FFS
    • IH-Network Only Plus
    • Aetna Managed Choice Open Access (POS)
    • United Healthcare Options (PPO)
    • UnitedHealthcare Individual Exchange Plans
    • HumanaChoice PPO
    • Aetna Better Health of VA
    • Choice POS
    • CareFirst Federal Employee Program (Std. & Basic PPO)
    • Aetna Traditional Choice (PPO)
    • CIGNA HMO & Network (HMO)
    • CIGNA Indemnity
    • Kaiser Permanente HMO Plus and DHMO Plus Member
    • Aetna Better Health of MD
    • Anthem BCBS Medi Blue Plus
    • Choice Care Network/HUMANA (PPO)
    • Aetna Classic 3500
    • IH-EPO Plus
    • Police and Fire Clinic
    • UnitedHealthcare Medicare Adv. Special Needs Plans
    • United Healthcare Select HMO-EPO/NPP Cardiac Global
    • Humana Medicare Advantage - HMO Open Access
    • Network OA
    • MultiPlan, Inc
    • Aetna Quality Point of Service (POS)
    • CareFirst Dual Prime HMO-SNP
    • Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
    • Aetna Open Choice (PPO)
    • Uniformed Services Family Health Plan
    • Aetna Elect Choice/ EPO (Aetna Health Fund)
    • M.D. IPA (HMO)
    • IH-POS Plus
    • Aetna Signature Administrator PPO/TPA
    • First Health PPO
    • Healthy Blue (HMO, POS)
    • CIGNA POS/Network POS
    • TRICARE East Prime
    • Coventry Health Care National Network PPO
    • Private Health Care Systems (PPO)
    • CareFirst FEP Blue Focus
    • Kaiser Permanente Medicare Plus
    • UHC Group Medicare Advantage Plans (HMO, POS, PPO)
    • United HealthCare Community Plan - Maryland Health Choice Program
    • IH-HMO
    • TRICARE for Life East
    • Priority Partners - Maryland Health Choice
    • United Healthcare Navigate Cardiac Global
    • Aetna Managed Choice (POS)
    • Anthem BCBS of VA HealthKeepers Plus
    • HealthyBlue PPO
    • CareFirst MedStar PPO
    • First Health PPO
    • Anthem Federal Employee Program Standard
    • TRICARE East Select
    • CIGNA HMO Open Access
    • Aetna Elect Choice/ Open Access (POS)
    • UHC Passport
    • CareFirst (NCA) Indemnity
    • Magellan Complete Care of VA - VA Medicaid MCO
    • United Student Resources
    • IH-Open HMO
    • CIGNA SureFit (HMO)
    • Cigna Achieve Medicare (HMO C-SNP)
    • Cigna Alliance Medicare (HMO)
    • Kaiser Permanente Select Cardiac Global
    • UnitedHealthcare Medicare Advantage DSNP District of Columbia
    • United Medicare Private Fee-for-Service (PFFS) plans
    • Anthem Federal Employee Program Basic
    • Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
    • CareFirst NASCO
    • BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
    • United Healthcare Community Plan - VA Medicaid MCO
    • Alterwood Advanatge HMO & DSNP Plans
    • Aetna Advantage 6350
    • CareFirst Blue Choice Opt Out Open Access
    • Johns Hopkins Advantage MD HMO
    • Optimum Choice Preferred (POS)
    • Mamsi Life & Health (Indem./PPO) Cardiac Global
    • Tricare Reserve Select
    • Humana Gold Plus HMO
    • United Healthcare Choice Cardiac Global
    • CIGNA PPO
    • Coventry of Delaware HMO/PPO
    • Kaiser Permaenete Signature - Added Choice Cardiac Global
    • CareFirst MedStar Select PPO
    • Kaiser Maryland Medicaid MCO
    • Employee Health Plan
    • Erickson Advantage Plans
    • Aetna Student Health Insurance
    • CareFirst Maryland Indemnity or PPO
    • United Healthcare Choice
    • Amerigroup DC Alliance
    • United Healthcare Select Plus (POS)
    • Aetna Basic
    • Cigna TotalCare (HMO D-SNP)
    • IH-Open HMO Option
    • Aetna Worker's Compensation Network
    • Veterans Affairs Community Care Network
    • Advantra Platinum (PPO)
    • Kaiser Permanente Signature
    • CareFirst Group Medicare Advantage prescription drug benefit (PPO)
    • Blue Choice Advantage
    • Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
    • Anthem BCBS of VA Key Care POS/PPO/Indemnity
    • Cigna True Choice Medicare (PPO)
    • CareFirst BlueChoice HMO
    • CareFirst Maryland Point of Service Plan
    • CareFirst Administrators
    • United Healthcare Choice Plus
    • Maryland Physicians Care MCO
    • MedStar Family Choice - Maryland Health Choice
    • Navigate
    • Aetna Premier 200PD
    • Choice POS II
    • Humana Medicare Advantage - PPO
    • Anthem BCBS Medi Blue SNP
    • Aetna Classic 5000
    • Optimum Choice
    • HighMark
    • CIGNA PPO Plus
    • Jai Medical Systems - Maryland Health Choice
    • IH-PPO
    • United Healthcare Select HMO - EPO/NPP
    • Options PPO Cardiac Global
    • AmeriHealth Caritas DC Healthy Families
    • Cigna True Choice Plus Medicare (PPO)
    • Aetna HMO
    • M.D. IPA Preferred (POS)
    • Geisinger Medicare Advantage
    • DC/MD SHOP QHP Small Business Plans
    • Medicare Advantage - Advantra Value (PPO)
    • Private Fee-for-Service Plans (PFFS)
    • CareFirst Group Medicare Advantage
    • CIGNA Connect EPO
    • Health Services for Children with Special Needs
    • OCI Direct (HMO)
    • Select HMO/HealthFund/Health Network
    • IH-POS
    • Kaiser Permanente Flexible Choice 3-tier POS
    • WellPoint Maryland - Maryland Health Choice
    • Johns Hopkins Advantage MD PLUS PPO
    • Kaiser Permanente Select
    • United Healthcare Choice Plus Cardiac Global
    • Aetna Medicare Advantage HMO & PPO Plans
    • Amerigroup DC Healthy Families
    • Sentara Health
    • Choice Fund PPO
    • Aetna Advantage 6350PD
    • IH-Open Network Only Plus
    • Choice POS II Open Access
    • BlueChoice Open Access
    • Optima Family Care MCO - VA Medicaid MCO
    • IH-Open POS II
    • CareFirst BlueCross BlueShield Advantage Core/Enhanced
    • NYC Medicare Advantage Plus
    • Anthem BCBS of VA HealthKeepers (HMO)
    • MedStar Family Choice DC Healthy Families
    • Core Essential (HMO)
    • Aetna Advantage 5750
    • Aetna Classic 5000PD
    • UnitedHealthcare and AARP Medicare Complete Plans
    • Medicare Direct
    • IH-Open POS Plus
    • Kaiser Permanente Signature - Added Choice
    • HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
    • CareFirst Blue Preferred PPO
    • Coventry Health Care of Virginia
    • AmeriHealth Caritas DC Healthcare Alliance
    • CIGNA EPO
    • Cigna Preferred Medicare (HMO)
    • Kaiser Permanente Medicare Advantage Signature and Select
    • IH-Indemnity
    • TriWest Healthcare Alliance
    • Anthem BCBS of VA HealthKeepers (POS & POS OA)
    • Aetna Medicare Advantage PFFS Plan
    • CareFirst Blue Card Program
    • Kaiser Permanente Flexible Choice POS Cardiac Global
    • Kaiser Permanente Select - Added Choice
    • POS OA
    • Great-West Healthcare POS/CIGNA
    • Beech Street PPO
    • CareFirst EPO
    • CareFirst Blue Choice Opt Out Plus Open Access (POS)
    • OA Plus
    • Anthem BCBS Medi Blue Dual Adv
    • Lasso Healthcare - Medicare Medical Savings Account
    • Mamsi Life & Health (Indem./PPO)
    • BCBS Out-of-State Medicare Plans (Blue Advantage)
    • Aetna VA Exchange
    • CareFirst Community Health Plan of MD
    • HumanaChoice Honor's plan PPO
    • MD IPA (HMO) & MD IPA Preferred Cardiac Global

Education

Board Certification: American Board of Orthopedic Surgery, Orthopedic Surgery

Fellowship: Houston Methodist Hospital (GME) (2019)

Residency: Temple University Hospital (2018)

Ratings and reviews

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

    4.9
  • Extent to which the care provider listened to you

    4.9
  • Care provider’s discussion of any proposed treatment (options, risks, benefits, etc.)

    4.9
  • Provider included you in decisions

    4.9
  • Concern the care provider showed for your questions or worries

    4.9
  • Likelihood of recommending this care provider to others

    4.9
  • May 23, 2026

    Dr Harper listened to my concerns and explained all

  • May 23, 2026

    Dr. Harper is tops.

  • May 20, 2026

    Dr.Harper was engaging, answered all of my questions. She explained in detail all things knees and hips. I loved her bedside manner.