Cassondra Majestic, M.D.
NPI 1538501705 · Emergency Medicine Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassondra Majestic, M.D. is a Emergency Medicine Physician provider in Irvine, CA (NPI 1538501705).
Provider details
- NPI number
- 1538501705
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 136050 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 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
684 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 243 | $184 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 208 | $9 |
| Critical Care, First 30-74 Minutes99291 | 161 | $227 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 49 | $127 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 12 | $187 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 11 |
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 |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 40 | 40 |
| Ondansetronbrand: Ondansetron Odt | 27 | 27 |
| Methylprednisolone | 21 | 21 |
| Cefpodoxime Proxetil | 19 | 17 |
| Cephalexin | 17 | 15 |
| Naloxone Hcl | 14 | 14 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$82 across 1 record (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
- 2013-07-29
- Last updated
- 2026-04-23
- Certified
- 2026-04-23
Frequently asked questions
- What is Cassondra Majestic's NPI number?
- Cassondra Majestic's National Provider Identifier (NPI) is 1538501705, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassondra Majestic's specialty?
- Cassondra Majestic is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cassondra Majestic located?
- Cassondra Majestic's practice location on file with NPPES is 16200 Sand Canyon Ave, Irvine, CA 92618-3714.
- What is Cassondra Majestic's phone number?
- The practice phone number listed in the NPPES registry for Cassondra Majestic is (949) 517-3010.
- Does Cassondra Majestic accept Medicare?
- Cassondra Majestic is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassondra Majestic's NPI active?
- Yes — Cassondra Majestic's NPI (1538501705) is active in the NPPES registry as of the last update on 2026-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.