Crystal Tuncay, DO
NPI 1992790414 · Internal Medicine Physician · Valparaiso, IN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Tuncay, DO is a Internal Medicine Physician provider in Valparaiso, IN (NPI 1992790414).
Provider details
- NPI number
- 1992790414
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 02003668A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,467 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 619 | $119 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 233 | $120 |
| Hemoglobin A1c Level83036 | 218 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 95 | $84 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 73 | $13 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 38 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 119 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 593 | 160 |
| Amlodipine Besylate | 345 | 93 |
| Levothyroxine Sodium | 321 | 75 |
| Montelukast Sodium | 197 | 52 |
| Rosuvastatin Calcium | 171 | 56 |
| Losartan Potassium | 171 | 50 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,319 across 107 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-12
- Last updated
- 2020-09-28
- Certified
- 2020-09-28
Frequently asked questions
- What is Crystal Tuncay's NPI number?
- Crystal Tuncay's National Provider Identifier (NPI) is 1992790414, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Tuncay's specialty?
- Crystal Tuncay is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Crystal Tuncay located?
- Crystal Tuncay's practice location on file with NPPES is 1231 Cumberland Crossing Drive, Valparaiso, IN 46383-2192.
- What is Crystal Tuncay's phone number?
- The practice phone number listed in the NPPES registry for Crystal Tuncay is (219) 548-3843.
- Does Crystal Tuncay accept Medicare?
- Crystal Tuncay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Tuncay's NPI active?
- Yes — Crystal Tuncay's NPI (1992790414) is active in the NPPES registry as of the last update on 2020-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.