Elaine Majerus, MD
NPI 1326064544 · Hematology (Internal Medicine) Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elaine Majerus, MD is a Hematology (Internal Medicine) Physician provider in Saint Louis, MO (NPI 1326064544).
Provider details
- NPI number
- 1326064544
- Entity type
- Individual
- Primary specialty
- Hematology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 115350 (MO)
Specialties & taxonomies
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 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
637 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 156 | $9 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 105 | $59 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 102 | $207 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 75 | $174 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Each Additional Hour96366 | 70 | $19 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 103 | 20 |
| Hydroxyurea | 78 | 23 |
| Warfarin Sodium | 49 | — |
| Acyclovir | 46 | — |
| Rivaroxabanbrand: Xarelto | 45 | — |
| Lenalidomide | 36 | — |
| Pomalidomidebrand: Pomalyst | 36 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24,728 across 22 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
- 2006-07-14
- Last updated
- 2025-04-17
Frequently asked questions
- What is Elaine Majerus's NPI number?
- Elaine Majerus's National Provider Identifier (NPI) is 1326064544, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elaine Majerus's specialty?
- Elaine Majerus is listed in the NPPES registry with a primary specialty of Hematology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Elaine Majerus located?
- Elaine Majerus's practice location on file with NPPES is 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003.
- What is Elaine Majerus's phone number?
- The practice phone number listed in the NPPES registry for Elaine Majerus is (314) 362-7216.
- Does Elaine Majerus accept Medicare?
- Elaine Majerus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elaine Majerus's NPI active?
- Yes — Elaine Majerus's NPI (1326064544) is active in the NPPES registry as of the last update on 2025-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.