Timothy Irwin, M.D.
NPI 1063622801 · Cardiovascular Disease Physician · Yankton, SD
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Irwin, M.D. is a Cardiovascular Disease Physician provider in Yankton, SD (NPI 1063622801).
Provider details
- NPI number
- 1063622801
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 8218 (SD)
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
19 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
10,942 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,515 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 1,233 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,122 | $123 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 904 | $92 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 793 | $8 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 978 | 191 |
| Atorvastatin Calcium | 611 | 156 |
| Metoprolol Succinate | 536 | 163 |
| Rosuvastatin Calcium | 509 | 154 |
| Warfarin Sodium | 392 | 60 |
| Spironolactone | 347 | 112 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$128 across 4 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
- 2007-05-23
- Last updated
- 2022-05-19
- Certified
- 2020-06-26
Frequently asked questions
- What is Timothy Irwin's NPI number?
- Timothy Irwin's National Provider Identifier (NPI) is 1063622801, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Irwin's specialty?
- Timothy Irwin is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Irwin located?
- Timothy Irwin's practice location on file with NPPES is 1104 W 8th St, Yankton, SD 57078-3306.
- What is Timothy Irwin's phone number?
- The practice phone number listed in the NPPES registry for Timothy Irwin is (605) 665-7841.
- Does Timothy Irwin accept Medicare?
- Timothy Irwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Irwin's NPI active?
- Yes — Timothy Irwin's NPI (1063622801) is active in the NPPES registry as of the last update on 2022-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.