Bobby Koshy Muthalaly, MD
NPI 1457375586ActiveIndividual· Internal Medicine, Nephrology· Tulsa, OK
Internal Medicine, Nephrology (MD) with Nephrology Associates, Inc., practicing in Tulsa, Oklahoma. 600 Medicare patients in 2024, $196,595 paid; nearly all of their 1,562 Part D prescriptions were generic (91%). Calliditas Therapeutics US Inc. was the largest of 14 companies reporting payments in 2025, $1,183 in all, mostly food and beverage. Lists Ascension St John Jane Phillips and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1457375586 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 20881 | 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 - Nephrology (OK); Practitioner - Nephrology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 600 |
|---|---|
| Services billed | 1,935 across 16 procedure codes |
| Paid by Medicare | $196,595 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,562 · 2,807 30-day fills |
|---|---|
| Patients | 293 |
| Total drug cost | $285,541 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Nephrology Associates, Inc.Tulsa, OK · 25 clinicians
Hospital affiliations
- Ascension St John Jane PhillipsBartlesville, OK
- Ascension St John Medical CenterTulsa, OK
- Cherokee Nation W W Hastings Indian HospitalTahlequah, OK
- Coffeyville Regional Medical Center, IncCoffeyville, KS
- Saint Francis Hospital MuskogeeMuskogee, OK
Other facilities
- Fmcna - Jane PhillipsDialysis facility · Bartlesville, OK
- Fmcna - North HarvardDialysis facility · Tulsa, OK
Industry payments (Open Payments)
- 2025$1,183 · 62 payments from 14 companies
- 2024$1,369 · 79 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $208.74 | 9 |
| Bayer Healthcare Pharmaceuticals Inc. | $150.42 | 10 |
| Amgen Inc. | $147.16 | 15 |
| Novartis Pharmaceuticals Corporation | $111.58 | 5 |
| Travere Therapeutics, Inc. | $111.02 | 4 |
What the 2025 payments were for
- Food and Beverage$1,151 · 61 payments
- Education$32.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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