Karen M. Ross, MD
NPI 1265400170ActiveIndividual· Internal Medicine, Geriatric Medicine· Oklahoma City, OK
Internal Medicine, Geriatric Medicine (MD) in Oklahoma City, Oklahoma, trained at University of Oklahoma College of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $674,221 for 8,722 claims, against $109,841 paid for services in 2024. Amgen Inc. was the largest of 4 companies reporting payments in 2025, $84.35 in all, mostly food and beverage.
Overview
| NPI | 1265400170 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 8, 2006 |
| Last updated in NPPES | May 21, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | 21901 | OK |
| Internal Medicine | 207R00000X | 21901 | OK |
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 - Internal Medicine (NC); Practitioner - Geriatric Medicine (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 496 |
|---|---|
| Services billed | 1,731 across 43 procedure codes |
| Paid by Medicare | $109,841 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,722 · 20,895 30-day fills |
|---|---|
| Patients | 629 |
| Total drug cost | $674,221 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Geriatric Medicine |
| Telehealth | Offers telehealth |
Medical group
- Mercy Clinic Oklahoma CommunitiesOklahoma City, OK · 649 clinicians
Hospital affiliations
- Lakeside Women's Hospital, A Member of Integris HeOklahoma City, OK
- Memorial Mission Hospital and Asheville Surgery CeAsheville, NC
- Mercy Hospital Oklahoma City, IncOklahoma City, OK
- O U Medical CenterOklahoma City, OK
- Ssm Health St Anthony Hospital - Oklahoma CityOklahoma City, OK
Other facilities
- Golden Age Home HealthHome health agency · Oklahoma City, OK
- Mercy Home HealthHome health agency · Oklahoma City, OK
- Mercy HospiceHospice · Oklahoma City, OK
Industry payments (Open Payments)
- 2025$84.35 · 5 payments from 4 companies
- 2024$15.29 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $34.47 | 2 |
| Pfizer Inc. | $21.79 | 1 |
| Abbvie Inc. | $14.30 | 1 |
| Glaxosmithkline, LLC. | $13.79 | 1 |
What the 2025 payments were for
- Food and Beverage$84.35 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 geriatricians in Oklahoma City · All geriatricians in Oklahoma