Tisha Joerla Mirasol Tan, M.D.
NPI 1881959872ActiveIndividual· Internal Medicine, Nephrology· Crystal Lake, IL
Internal Medicine, Nephrology (M.D.) with Kidney Care Center Elgin LLC, practicing in Crystal Lake, Illinois. 902 Medicare patients in 2024, $404,609 paid; nearly all of their 3,605 Part D prescriptions were generic (92%). Amgen Inc. was the largest of 13 companies reporting payments in 2025, $1,164 in all, mostly food and beverage. Lists Advocate Good Shepherd Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1881959872 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 6, 2012 |
| Last updated in NPPES | Sep 15, 2022 |
| Certified by provider | Sep 15, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 036137011 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 902 |
|---|---|
| Services billed | 5,350 across 26 procedure codes |
| Paid by Medicare | $404,609 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,605 · 8,366 30-day fills |
|---|---|
| Patients | 558 |
| Total drug cost | $385,416 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Kidney Care Center Elgin LLCElgin, IL · 7 clinicians
Hospital affiliations
- Advocate Good Shepherd HospitalBarrington, IL
- Advocate Sherman HospitalElgin, IL
- Northwestern Lake Forest HospitalLake Forest, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Medicine McHenryMcHenry, IL
Other facilities
- Concerto DialysisDialysis facility · Lincolnwood, IL
- Dialysis Care Center - McHenryDialysis facility · McHenry, IL
- Davita Huntley DialysisDialysis facility · Huntley, IL
- Home Dialysis Services - ElginDialysis facility · Crystal Lake, IL
Industry payments (Open Payments)
- 2025$1,164 · 49 payments from 13 companies
- 2024$1,034 · 48 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $270.11 | 14 |
| Calliditas Therapeutics US Inc. | $179.46 | 5 |
| Novartis Pharmaceuticals Corporation | $110.71 | 4 |
| Otsuka America Pharmaceutical, Inc. | $105.36 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $105.16 | 4 |
What the 2025 payments were for
- Food and Beverage$1,075 · 45 payments
- Education$88.79 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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