Stephen Ierardi, MD
NPI 1548308836 · Family Medicine Physician · Laguna Hills, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Ierardi, MD is a Family Medicine Physician provider in Laguna Hills, CA (NPI 1548308836).
Provider details
- NPI number
- 1548308836
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G63246 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
4,124 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) |
|---|---|---|
| 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 | 314 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 240 | $137 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 183 | $9 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 181 | $8 |
| Liver Function Blood Test Panel80076 | 175 | $8 |
| Thyroid Hormone, T3 Measurement, Total84480 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 116 | 32 |
| Atorvastatin Calcium | 111 | 33 |
| Amlodipine Besylate | 71 | 20 |
| Rosuvastatin Calcium | 62 | 25 |
| Pantoprazole Sodium | 53 | 19 |
| Metformin Hclbrand: Metformin Hcl Er | 53 | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,713 across 115 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
Additional practice locations (1)
- 24411 Health Center DrSuite 670Laguna Hills, CA 92653-3651Phone: (949) 452-7755Fax: (949) 452-7750
Registry dates
- Enumerated
- 2007-02-01
- Last updated
- 2018-12-21
Frequently asked questions
- What is Stephen Ierardi's NPI number?
- Stephen Ierardi's National Provider Identifier (NPI) is 1548308836, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Ierardi's specialty?
- Stephen Ierardi is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Ierardi located?
- Stephen Ierardi's practice location on file with NPPES is 24422 Avenida De La Carlota Ste 272, Laguna Hills, CA 92653-3648.
- What is Stephen Ierardi's phone number?
- The practice phone number listed in the NPPES registry for Stephen Ierardi is (949) 282-6500.
- Does Stephen Ierardi accept Medicare?
- Stephen Ierardi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Ierardi's NPI active?
- Yes — Stephen Ierardi's NPI (1548308836) is active in the NPPES registry as of the last update on 2018-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.