Shirin Heydari, PA
NPI 1356977607 · Physician Assistant · Fullerton, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shirin Heydari, PA is a Physician Assistant provider in Fullerton, CA (NPI 1356977607).
Provider details
- NPI number
- 1356977607
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
226 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 72 | $84 |
| X-Ray of Lower and Sacral Spine, 2-3 Views72100 | 54 | $34 |
| Insertion of Cage Or Mesh Device to Spine Bone and Disc Space During Spine Fusion22853 | 18 | $35 |
| Partial Removal of Bone of Single Segment of Spine in Lower Back With Release of Spinal Cord And/Or Nerves During Fusion of Spine in Lower Back63052 | 16 | $35 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 16 | $69 |
| Fusion of Spine in Lower Back With Partial Removal of Spine Bone and Disc |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 78 | 33 |
| Methocarbamol | 62 | 50 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 57 | 49 |
| Celecoxib | 54 | 46 |
| Methylprednisolone | 34 | 30 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 18 | 17 |
| Oxycodone Hcl | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$585 across 14 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
- 2020-03-18
- Last updated
- 2021-11-08
- Certified
- 2021-11-08
Frequently asked questions
- What is Shirin Heydari's NPI number?
- Shirin Heydari's National Provider Identifier (NPI) is 1356977607, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shirin Heydari's specialty?
- Shirin Heydari is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Shirin Heydari located?
- Shirin Heydari's practice location on file with NPPES is 100 E Valencia Mesa Dr Ste 310, Fullerton, CA 92835-3800.
- What is Shirin Heydari's phone number?
- The practice phone number listed in the NPPES registry for Shirin Heydari is (714) 734-3120.
- Does Shirin Heydari accept Medicare?
- Shirin Heydari is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shirin Heydari's NPI active?
- Yes — Shirin Heydari's NPI (1356977607) is active in the NPPES registry as of the last update on 2021-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.