Elizabeth Maylack, D.O.
NPI 1154687077 · Family Medicine Physician · Saint Charles, MO
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth Maylack, D.O. is a Family Medicine Physician provider in Saint Charles, MO (NPI 1154687077).
Provider details
- NPI number
- 1154687077
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 036140361 (IL)
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
14 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
446 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 | 59 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 58 | $120 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 49 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 45 | $8 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 40 | $13 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 31 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 111 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 416 | 130 |
| Levothyroxine Sodium | 219 | 70 |
| Amlodipine Besylate | 182 | 62 |
| Gabapentin | 172 | 55 |
| Omeprazole | 159 | 48 |
| Losartan Potassium | 156 | 55 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$812 across 39 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
- 2012-04-04
- Last updated
- 2020-03-31
- Certified
- 2020-03-31
Frequently asked questions
- What is Elizabeth Maylack's NPI number?
- Elizabeth Maylack's National Provider Identifier (NPI) is 1154687077, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Maylack's specialty?
- Elizabeth Maylack is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Elizabeth Maylack located?
- Elizabeth Maylack's practice location on file with NPPES is 1551 Wall St Ste 400, Saint Charles, MO 63303-3541.
- What is Elizabeth Maylack's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Maylack is (636) 669-7006.
- Does Elizabeth Maylack accept Medicare?
- Elizabeth Maylack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth Maylack's NPI active?
- Yes — Elizabeth Maylack's NPI (1154687077) is active in the NPPES registry as of the last update on 2020-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.