Zavier Shawkat Ahmed, M.D.
NPI 1255677134ActiveIndividual· Internal Medicine, Nephrology· Fountain Valley, CA
Internal Medicine, Nephrology (M.D.) with Pacific Renal Care Medical Corp, practicing in Fountain Valley, California. In 2024 Medicare paid $520,595 for 743 patients, and Part D covered 421 of their prescriptions, 73% of them generic. Bayer Healthcare Pharmaceuticals Inc. was the largest of 6 companies reporting payments in 2025, $439.03 in all, mostly food and beverage. Lists Foothill Regional Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1255677134 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 20, 2012 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A135146 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 743 |
|---|---|
| Services billed | 6,928 across 8 procedure codes |
| Paid by Medicare | $520,595 |
Part D prescriptions in 2024
| Prescriptions (claims) | 421 · 785 30-day fills |
|---|---|
| Patients | 105 |
| Total drug cost | $110,958 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Pacific Renal Care Medical CorpFountain Valley, CA · 3 clinicians
Hospital affiliations
- Foothill Regional Medical CenterTustin, CA
- Garden Grove Hospital & Medical CenterGarden Grove, CA
- Huntington Beach HospitalHuntington Beach, CA
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
- Uci Health-OrangeOrange, CA
Other facilities
- Rai - Garden Grove Blvd - Garden GroveDialysis facility · Garden Grove, CA
- Rai - Hospital Circle - WestminsterDialysis facility · Westminster, CA
- Rai - New Hope - Fountain ValleyDialysis facility · Fountain Valley, CA
- Rai-Harbor Blvd - Garden GroveDialysis facility · Garden Grove, CA
Industry payments (Open Payments)
- 2025$439.03 · 13 payments from 6 companies
- 2024$443.50 · 16 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $196.37 | 3 |
| Novartis Pharmaceuticals Corporation | $91.81 | 4 |
| Astrazeneca Pharmaceuticals LP | $51.23 | 2 |
| Fresenius USA Marketing, Inc. | $43.98 | 2 |
| Amgen Inc. | $30.42 | 1 |
What the 2025 payments were for
- Food and Beverage$439.03 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 nephrologists in Fountain Valley · All nephrologists in California