Elizabeth H. Maylack, D.O.
Family Medicine Physician · Saint Charles, MO
Elizabeth H. Maylack, D.O. is a family medicine physician with a practice address in Saint Charles, Missouri, and NPI 1154687077, issued on Apr 4, 2012. Check the license (Missouri 2018020904, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Elizabeth H. Maylack
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 2018020904 MO
036140361 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1551 Wall St Ste 400, Saint Charles, MO 63303
- Phone
- (636) 669-7006
- Enumerated
- Apr 4, 2012
- Record last updated
- Mar 31, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (636) 669-7008
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,991 in Missouri → Look up another NPI →
Also registered at 1551 Wall St Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy McCory, ANPAdult Health Nurse Practitioner1205218344
Verify Elizabeth H. Maylack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2018020904Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% more Medicare Part D claims than the average family medicine physician in 2024
5,856 Medicare Part D claims for 576 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 282 claims were for opioids.
Most prescribed
- Atorvastatin Calcium416 claims
- Levothyroxine Sodium219 claims
- Amlodipine Besylate182 claims
- Gabapentin172 claims
- Omeprazole159 claims
- Losartan Potassium156 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $812.37
39 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Elizabeth H. Maylack among 2,991 family medicine physician records in Missouri
Elizabeth H. Maylack, D.O. is one of 2,991 family medicine physician records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 65% of them.
- NPI issued2012 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2020 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 family medicine physician records list a practice address in Saint Charles
They are 23 of the 1,547 NPPES records with a practice address in Saint Charles, and 2,991 family medicine physician records in Missouri.
All 2,991 in Missouri → Every provider in Saint Charles → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Pamela Buchanan, M.D.Saint Charles, MO 633031164633111
- Natan Khotianov, MDSaint Charles, MO 633031801903463
- Richard Leahy, D.O.Saint Peters, MO 633031114991643
- Haikun Li, MDSaint Charles, MO 633031437373834
- Steven Livingstone, D.O.Saint Charles, MO 633031013981109
- Ann Lottes, M.D.Saint Charles, MO 633031588015424
- Eric Martin, D.O.Saint Charles, MO 633031104276310
- Eric Nalagan, M.D.Saint Charles, MO 633031033287610
Common questions
What is Elizabeth H. Maylack, D.O.'s NPI number?
Elizabeth H. Maylack, D.O.'s National Provider Identifier (NPI) is 1154687077, issued on Apr 4, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth H. Maylack, D.O. located?
The NPPES record lists a practice address at 1551 Wall St Ste 400, Saint Charles, MO, 63303. Phone: (636) 669-7006. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth H. Maylack, D.O.'s license?
NPPES lists Missouri license number 2018020904, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Elizabeth H. Maylack, D.O. prescribe under Medicare Part D?
In 2024, Elizabeth H. Maylack, D.O. had 5,856 Medicare Part D claims for 576 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.