Karla L. Houston-Gray, MD
NPI 1003801085ActiveIndividual· Internal Medicine· Kansas City, MO
Internal Medicine (MD) in Kansas City, Missouri, trained at Tulane University School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $1,476,845 for 13,256 claims, against $37,557 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 37 companies reporting payments in 2025, $3,977 in all, mostly food and beverage.
Overview
| NPI | 1003801085 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 15, 2005 |
| Last updated in NPPES | May 7, 2026 |
| Certified by provider | May 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD 109234 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 145 |
|---|---|
| Services billed | 544 across 23 procedure codes |
| Paid by Medicare | $37,557 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13,256 · 26,314 30-day fills |
|---|---|
| Patients | 741 |
| Total drug cost | $1,476,845 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Internal Medicine |
Medical groups
- Ability KcKansas City, MO · 167 clinicians
- Prime Healthcare Kansas City - Physician Services LLCKansas City, MO · 75 clinicians
Hospital affiliations
- Research Medical CenterKansas City, MO
- St Joseph Medical CenterKansas City, MO
- St Lukes Hospital of Kansas CityKansas City, MO
Other facilities
- Ahc Home Health of Kansas City DBA Advanced Home Health CareHome health agency · Overland Park, KS
- HCA Midwest Healthcare at HomeHome health agency · Kansas City, MO
Industry payments (Open Payments)
- 2025$3,977 · 188 payments from 37 companies
- 2024$3,868 · 203 payments from 34 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $763.34 | 41 |
| Novo Nordisk Inc | $421.62 | 11 |
| Lilly USA, LLC | $323.61 | 11 |
| Regeneron Healthcare Solutions, Inc. | $275.57 | 11 |
| Genzyme Corporation | $241.93 | 9 |
What the 2025 payments were for
- Food and Beverage$3,962 · 187 payments
- Education$14.70 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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