Katherine Tian, MD
NPI 1144888017 · Internal Medicine Physician · South Bend, IN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Tian, MD is a Internal Medicine Physician provider in South Bend, IN (NPI 1144888017).
Provider details
- NPI number
- 1144888017
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 125074042 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,047 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 462 | $118 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 369 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 243 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 240 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 237 | $13 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 236 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 115 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 486 | 156 |
| Levothyroxine Sodium | 384 | 105 |
| Lisinopril | 326 | 91 |
| Amlodipine Besylate | 291 | 92 |
| Pantoprazole Sodium | 212 | 62 |
| Losartan Potassium | 205 | 61 |
| Simvastatin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-06-05
- Last updated
- 2022-06-22
- Certified
- 2022-06-22
Frequently asked questions
- What is Katherine Tian's NPI number?
- Katherine Tian's National Provider Identifier (NPI) is 1144888017, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Tian's specialty?
- Katherine Tian is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Tian located?
- Katherine Tian's practice location on file with NPPES is 211 N Eddy St, South Bend, IN 46617-3096.
- What is Katherine Tian's phone number?
- The practice phone number listed in the NPPES registry for Katherine Tian is (574) 251-2100.
- Does Katherine Tian accept Medicare?
- Katherine Tian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Tian's NPI active?
- Yes — Katherine Tian's NPI (1144888017) is active in the NPPES registry as of the last update on 2022-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.