Caitlin Coleen Walker, MD
NPI 1225534761ActiveIndividual· Obstetrics & Gynecology· Chandler, AZ
Obstetrics & Gynecology (MD) in Chandler, Arizona, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 2018). Mostly services rather than prescriptions: Medicare paid $2,859 for 18 patients in 2024, with only 42 Part D claims. Hologic Sales and Service, LLC was the largest of 18 companies reporting payments in 2025, $855.52 in all, mostly food and beverage.
Overview
| NPI | 1225534761 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 3, 2018 |
| Last updated in NPPES | Aug 22, 2022 |
| Certified by provider | Aug 22, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 66035 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 18 |
|---|---|
| Services billed | 36 across 15 procedure codes |
| Paid by Medicare | $2,859 |
Part D prescriptions in 2024
| Prescriptions (claims) | 42 · 87 30-day fills |
|---|---|
| Total drug cost | $1,932 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Lilac Healthcare LLCChandler, AZ · 23 clinicians
Industry payments (Open Payments)
- 2025$855.52 · 38 payments from 18 companies
- 2024$1,163 · 44 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Hologic Sales and Service, LLC | $166.06 | 10 |
| Glaxosmithkline, LLC. | $111.96 | 2 |
| Biogen, Inc. | $85.67 | 3 |
| Astellas Pharma US Inc | $78.21 | 3 |
| Medtronic, Inc. | $63.76 | 2 |
What the 2025 payments were for
- Food and Beverage$855.52 · 38 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other OB-GYNs in Chandler
- 1043285885
- 1285607333
- 1295971117
- 1336213248
- 1376707638
- 1427030469
- 1508276585
- 1578054987
- 1700076635
- 1750791752
- 1790762094
- 1912941360