James Nassiri, MD, MA
NPI 1225164999 · Anesthesiology Physician · Glendale, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Nassiri, MD, MA is a Anesthesiology Physician provider in Glendale, CA (NPI 1225164999).
Provider details
- NPI number
- 1225164999
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MA
- Sex
- Male
- Sole proprietor
- Yes
- License
- A86743 (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
19 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
549 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 138 | $138 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 132 | $94 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 47 | $179 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 38 | $119 |
| Injection of Anesthetic And/Or Steroid Drug Into Sacral Spine Nerve Root Using Imaging Guidance, Single Level64483 | 32 | $148 |
| Injection of Lower Or Sacral Spine Facet Joint Using Imaging Guidance, Single Level |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tramadol Hcl | 75 | 13 |
| Gabapentin | 53 | 25 |
| Oxycodone Hcl | 37 | — |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 26 | 11 |
| Fentanyl | 24 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 22 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,631 across 24 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
- 2007-02-26
- Last updated
- 2010-01-07
Frequently asked questions
- What is James Nassiri's NPI number?
- James Nassiri's National Provider Identifier (NPI) is 1225164999, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Nassiri's specialty?
- James Nassiri is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is James Nassiri located?
- James Nassiri's practice location on file with NPPES is 1420 S Central Ave, Glendale, CA 91204-2508.
- What is James Nassiri's phone number?
- The practice phone number listed in the NPPES registry for James Nassiri is (818) 502-1900.
- Does James Nassiri accept Medicare?
- James Nassiri is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Nassiri's NPI active?
- Yes — James Nassiri's NPI (1225164999) is active in the NPPES registry as of the last update on 2010-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.