Dr. Crystal Ilke Tuncay, DO
- Medicare services, 2024
- 2,388
- Medicare patients, 2024
- 373
- Part D claims, 2024
- 6,916
- Hospital affiliations
- 7
- Industry payments
- $4,420
- Practice address
- 1231 Cumberland Crossing Dr, Valparaiso, IN 46383
- Practice phone
- Call (219) 983-6380
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Porter Physician Services
Valparaiso, Indiana
Find Dr. Tuncay's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Crystal Ilke Tuncay is an internist in Valparaiso, Indiana
Dr. Tuncay practices at Porter Physician Services in Valparaiso, Indiana.
Dr. Tuncay's NPI, 1992790414, was assigned on September 12, 2005. Dr. Tuncay graduated from Midwestern University, Chicago College of Osteopathic Med in 2007. Dr. Tuncay holds Indiana license 02003668A.
- NPI
- 1992790414NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739371964
- NPI enumeration date
- September 12, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (219) 983-6380
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Crystal Ilke Tuncay practices at Porter Physician Services in Valparaiso, Indiana
Dr. Tuncay's primary practice is Porter Physician Services, at 1231 Cumberland Crossing Dr, Valparaiso, IN 46383 in Porter County. The practice phone is (219) 983-6380.
- Porter Physician Services1231 Cumberland Crossing Dr, Valparaiso, IN 46383 · Porter CountyPhone(219) 983-6380
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Crystal Ilke Tuncay is affiliated with 11 sites of care and 2 medical groups
Dr. Tuncay's primary practice is Porter Physician Services in Valparaiso, Indiana. Dr. Tuncay is also affiliated with Northwest Health - Porter. The medical group on file is Powers Health Medical Group. Dmand AI also links Dr. Tuncay to 6 more hospitals, 1 group practice or clinic, 1 home health agency, 1 hospice and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Crystal Ilke Tuncay's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tuncay practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Porter Physician Services | Available with a free account |
| +10 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Crystal Ilke Tuncay is one of 1,987 internists in Indiana
Internal medicine is Dr. Tuncay's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tuncay is licensed in Indiana.
Specialties and state licenses
- Internal medicine, IndianaPrimary
Internists near Dr. Tuncay
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Crystal Ilke Tuncay billed Medicare for 2,388 services in 2024
CMS data shows 2,388 Medicare services from Dr. Tuncay across 18 procedure codes in 2024, for 373 Medicare patients. Medicare paid $119,621 for them.
Dr. Tuncay's Medicare services by type, 2024
- Drugs given in the office900
- Office and hospital visits853
- Other services265
- Lab and pathology250
- Tests and treatments94
- Surgery26
Where Dr. Tuncay's Medicare services took place, 2024
- In an office2,30496%
- In a facility844%
Dr. Tuncay compared with the Indiana median for internists, 2024
- Dr. Tuncay
- Indiana median
- Medicare services
- 2,388vs 5204.6 times
- Medicare patients
- 373vs 21276% above
- Part D claims
- 6,274vs 15939.5 times
Medians across 1,948 internists in Indiana with Dmand AI profiles that report each measure.
Dr. Tuncay's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tuncay and other internists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Crystal Ilke Tuncay treated 373 Medicare patients in 2024, average age 74
CMS counts 373 Medicare patients who saw Dr. Tuncay in 2024. The largest group is 65 to 74, with 192 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tuncay's median patient age at 74, with 77% women.
Dr. Tuncay's Medicare patients by age, 2024
Dr. Tuncay's Medicare patients by sex, 2024
- Women28276%
- Men9124%
Chronic conditions among Dr. Tuncay's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis43%
- Chronic kidney disease39%
- Diabetes35%
- Ischemic heart disease29%
- Anxiety27%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tuncay's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women77%
- Men23%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Crystal Ilke Tuncay wrote 6,916 Medicare Part D claims in 2024
In 2024, Dr. Tuncay wrote 6,916 Medicare Part D claims for 543 patients. 85% of them were for generic drugs. CMS names the drug for 6,274 of them, across 119 drugs with 11 or more claims each, at $735,058 in total drug cost.
Dr. Tuncay's Part D claims by kind of drug, 2024
- Generic5,872 claims85%
- Brand-name955 claims14%
- Other89 claims1%
Dr. Tuncay's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Tuncay's Part D claims, 2024
- Opioids2%131 of 6,916 claims
- Antibiotics2%149 of 6,916 claims
- Antipsychotics, patients 65 and over0%27 of 6,916 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Crystal Ilke Tuncay offers telehealth to Medicare patients
Dr. Tuncay accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tuncay as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Crystal Ilke Tuncay received $4,420 in industry payments from 2024 to 2025
CMS Open Payments shows 205 general payments to Dr. Tuncay from 34 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $729.
General payments to Dr. Tuncay by program year, 2024 to 2025
Companies that paid Dr. Tuncay the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Crystal Ilke Tuncay graduated from Midwestern University, Chicago College of Osteopathic Med
Dr. Tuncay graduated from Midwestern University, Chicago College of Osteopathic Med in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Crystal Ilke Tuncay's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Crystal Ilke Tuncay
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Crystal Ilke Tuncay's NPI number?
Dr. Crystal Ilke Tuncay's NPI number is 1992790414. It was assigned on September 12, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Crystal Ilke Tuncay?
Dr. Crystal Ilke Tuncay is an internist in Valparaiso, Indiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Crystal Ilke Tuncay practice?
Dr. Tuncay practices at 1231 Cumberland Crossing Dr, Valparaiso, IN 46383. Dr. Tuncay's primary practice is Porter Physician Services in Valparaiso, Indiana. Dmand AI also links Dr. Tuncay to 6 hospitals, 1 group practice or clinic, 1 home health agency, 1 hospice and 1 medical group.
What is Dr. Crystal Ilke Tuncay's office phone number?
The practice phone on file for Dr. Tuncay is (219) 983-6380.
What is Dr. Crystal Ilke Tuncay's medical license number?
Dr. Tuncay holds Indiana license 02003668A.
Which hospitals is Dr. Crystal Ilke Tuncay affiliated with?
Dr. Tuncay is affiliated with Northwest Health - Porter. Dmand AI links Dr. Tuncay to 6 more hospitals.
What medical group is Dr. Crystal Ilke Tuncay part of?
Dr. Tuncay is linked to Powers Health Medical Group. Dmand AI links Dr. Tuncay to 1 more medical group.
Does Dr. Crystal Ilke Tuncay accept Medicare?
Yes. CMS data shows Dr. Tuncay billed Medicare for 2,388 services in 2024, and Dr. Tuncay accepts Medicare assignment.
Does Dr. Crystal Ilke Tuncay offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tuncay as offering telehealth services.
How many Medicare patients does Dr. Crystal Ilke Tuncay see?
CMS counts 373 Medicare patients who saw Dr. Tuncay in 2024, with an average age of 74.
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What services does Dr. Crystal Ilke Tuncay bill to Medicare?
In 2024, Dr. Tuncay's most billed Medicare services were injected or infused drug (J0897), office visit, established patient (99214) and medicare service (G0439).
Where did Dr. Crystal Ilke Tuncay go to medical school?
Dr. Tuncay graduated from Midwestern University, Chicago College of Osteopathic Med in 2007.
What drugs does Dr. Crystal Ilke Tuncay prescribe most?
In 2024 Medicare Part D data, Dr. Tuncay's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. Crystal Ilke Tuncay received payments from drug or device companies?
CMS Open Payments shows $4,420 in general payments to Dr. Tuncay from 34 companies from 2024 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Crystal Ilke Tuncay been practicing?
Dr. Tuncay graduated from medical school in 2007, 19 years ago.
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