Zavier Ahmed, M.D.
NPI 1255677134 · Nephrology Physician · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zavier Ahmed, M.D. is a Nephrology Physician provider in Fountain Valley, CA (NPI 1255677134).
Provider details
- NPI number
- 1255677134
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A135146 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
6,900 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 5,170 | $75 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 724 | $114 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 697 | $166 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 192 | $343 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 117 | $87 |
Typical Medicare-allowed amounts for these services range $75–$343 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dapagliflozin Propanediolbrand: Farxiga | 56 | 16 |
| Sodium Zirconium Cyclosilicatebrand: Lokelma | 41 | 14 |
| Lisinopril | 27 | — |
| Levofloxacin | 26 | 15 |
| Sevelamer Carbonate | 23 | — |
| Hydralazine Hcl | 22 | — |
| Amlodipine Besylate | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$444 across 15 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-12-20
- Last updated
- 2022-07-21
Frequently asked questions
- What is Zavier Ahmed's NPI number?
- Zavier Ahmed's National Provider Identifier (NPI) is 1255677134, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zavier Ahmed's specialty?
- Zavier Ahmed is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Zavier Ahmed located?
- Zavier Ahmed's practice location on file with NPPES is 11180 Warner Ave Ste 463, Fountain Valley, CA 92708-7505.
- What is Zavier Ahmed's phone number?
- The practice phone number listed in the NPPES registry for Zavier Ahmed is (714) 241-9200.
- Does Zavier Ahmed accept Medicare?
- Zavier Ahmed is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zavier Ahmed's NPI active?
- Yes — Zavier Ahmed's NPI (1255677134) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.