Crystal Ilke Tuncay, DO
Crystal Ilke Tuncay is an Internal Medicine specialist based in Valparaiso, IN with over 19 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: EMERGENCY MEDICINE
Crystal Ilke Tuncay, DO specializes in internal medicine, serving patients in Valparaiso, IN in group practice. She graduated from Midwestern University, Chicago College of Osteopathic Med in 2007 and has 19+ years of clinical experience. She regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data).
At a glance
- Prescribes opioids less than 39% of reporting doctors in Indiana
- Uses generic medications more than 48% of reporting doctors in Indiana
- Virtual visits available — no app or travel required
Older · 2063dNPPES updated 2020-09-28 · verify NPI on CMS · Verify license at Indiana Medical Licensing Board
Contact & Location
Practice Location
1231 Cumberland Crossing Drive, Valparaiso, IN 46383-2192
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better2.2%
Indiana avg: 5.8 · US avg: 5.1
✓ Higher than most doctors nationally(-2.9 pts)
2.2% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better87.2%
Indiana avg: 83.4 · US avg: 82.8
✓ Higher than most doctors nationally(+4.4 pts)
Typical range among reporting doctors in IndianaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
390
Unique beneficiaries
Standard volumePrescription Recipients
538
Patients prescribed
Prescriptions Written
6,587
Total claims
Total Medicare drug cost: $775k
Percentile rankings compared against 557 reporting peers in Indiana.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-2%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+8%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-2%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-4%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-6%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$2.3k received from industry
107 transactions reported in 2024 ·Moderate tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Crystal Ilke Tuncay's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2007
Midwestern University, Chicago College of Osteopathic Med
Board certified · Sep 27, 2020
Self-reported via NPPES
19 years in practice
Experienced
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.
Taxonomy: 207R00000X
Education & Training
Midwestern University, Chicago College of Osteopathic Med (Class of 2007)
Mailing address
2022 Kelle Dr, Chesterton, IN 46304-8708
Differs from practice location
Virtual Internal Medicine Care With Crystal Ilke Tuncay
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Crystal Ilke Tuncay for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Valparaiso required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Crystal Ilke Tuncay
NPI records show Dr. Tuncay as active with telehealth listed in Valparaiso, IN. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (219) 548-3843.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Crystal Ilke Tuncay
Practice Location
1231 Cumberland Crossing Drive, Valparaiso, IN 46383-2192
Mailing Address
2022 Kelle Dr, Chesterton, IN 46304-8708
This is a provider directory. Contact the office directly to schedule appointments.
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