Kristen Irwin, M.D.
NPI 1225340987 · Internal Medicine Physician · Indianapolis, IN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kristen Irwin, M.D. is a Internal Medicine Physician provider in Indianapolis, IN (NPI 1225340987).
Provider details
- NPI number
- 1225340987
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 4301096586 (MI)
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 tenure25% of score
15 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
865 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 | 241 | $119 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 162 | $15 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 134 | $165 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 95 | $119 |
| Hemoglobin A1c Level, By Device for Home Use83037 | 60 | $10 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 103 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 347 | 105 |
| Amlodipine Besylate | 205 | 63 |
| Levothyroxine Sodium | 186 | 41 |
| Losartan Potassium | 146 | 40 |
| Alendronate Sodium | 117 | 40 |
| Omeprazole | 107 | 28 |
| Simvastatin | 95 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$341 across 19 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
- 2010-07-10
- Last updated
- 2011-06-22
Frequently asked questions
- What is Kristen Irwin's NPI number?
- Kristen Irwin's National Provider Identifier (NPI) is 1225340987, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kristen Irwin's specialty?
- Kristen Irwin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kristen Irwin located?
- Kristen Irwin's practice location on file with NPPES is 2001 W 86th St, Indianapolis, IN 46260-1902.
- What is Kristen Irwin's phone number?
- The practice phone number listed in the NPPES registry for Kristen Irwin is (317) 338-2172.
- Does Kristen Irwin accept Medicare?
- Kristen Irwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kristen Irwin's NPI active?
- Yes — Kristen Irwin's NPI (1225340987) is active in the NPPES registry as of the last update on 2011-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.