Akbar Nassiry, M.D., M.P.H.
NPI 1003259870 · Hospitalist Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Akbar Nassiry, M.D., M.P.H. is a Hospitalist Physician provider in Irvine, CA (NPI 1003259870).
Provider details
- NPI number
- 1003259870
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.P.H.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A125091 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 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
981 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 388 | $123 |
| Critical Care, First 30-74 Minutes99291 | 182 | $215 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 102 | $179 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 69 | $85 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 59 | $162 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 56 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 85 | 17 |
| Losartan Potassium | 69 | 18 |
| Atorvastatin Calcium | 63 | 24 |
| Glipizide | 62 | 20 |
| Tamsulosin Hcl | 51 | — |
| Levothyroxine Sodium | 43 | 12 |
| Gabapentin | 39 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-11
- Last updated
- 2020-05-29
- Certified
- 2020-05-29
Frequently asked questions
- What is Akbar Nassiry's NPI number?
- Akbar Nassiry's National Provider Identifier (NPI) is 1003259870, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Akbar Nassiry's specialty?
- Akbar Nassiry is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Akbar Nassiry located?
- Akbar Nassiry's practice location on file with NPPES is 4000 Barranca Parkway, Irvine, CA 92604-1713.
- What is Akbar Nassiry's phone number?
- The practice phone number listed in the NPPES registry for Akbar Nassiry is (949) 577-0047.
- Does Akbar Nassiry accept Medicare?
- Akbar Nassiry is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Akbar Nassiry's NPI active?
- Yes — Akbar Nassiry's NPI (1003259870) is active in the NPPES registry as of the last update on 2020-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.