Ahmad Mahallati-Shirazi, MD
NPI 1043423775 · Nephrology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ahmad Mahallati-Shirazi, MD is a Nephrology Physician provider in Seattle, WA (NPI 1043423775).
Provider details
- NPI number
- 1043423775
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD60221637 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,750 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 346 | $9 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 228 | $17 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 193 | $123 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 166 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 152 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carvedilol | 204 | 67 |
| Amlodipine Besylate | 189 | 63 |
| Furosemide | 183 | 50 |
| Losartan Potassium | 145 | 51 |
| Lisinopril | 87 | 25 |
| Metoprolol Succinate | 82 | 23 |
| Calcitriol | 79 | 23 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-08
- Last updated
- 2013-06-25
Frequently asked questions
- What is Ahmad Mahallati-Shirazi's NPI number?
- Ahmad Mahallati-Shirazi's National Provider Identifier (NPI) is 1043423775, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ahmad Mahallati-Shirazi's specialty?
- Ahmad Mahallati-Shirazi is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Ahmad Mahallati-Shirazi located?
- Ahmad Mahallati-Shirazi's practice location on file with NPPES is 1100 9th Ave, Seattle, WA 98101-2756.
- What is Ahmad Mahallati-Shirazi's phone number?
- The practice phone number listed in the NPPES registry for Ahmad Mahallati-Shirazi is (202) 223-6673.
- Does Ahmad Mahallati-Shirazi accept Medicare?
- Ahmad Mahallati-Shirazi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ahmad Mahallati-Shirazi's NPI active?
- Yes — Ahmad Mahallati-Shirazi's NPI (1043423775) is active in the NPPES registry as of the last update on 2013-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.