NPPES file of Aug 9, 2026

Liza Hillary Siegel, MD

Dermatology Physician · Saint Louis, MO

Liza Hillary Siegel, MD is a dermatology physician with a practice address in Saint Louis, Missouri, and NPI 1265812184, issued on Jun 5, 2015. Check the license (Missouri 2022009588, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265812184
Name
Liza Hillary Siegel
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
2022009588 MO
Self-reported in NPPES; status is on the state search
Practice location
1 Childrens PL, Saint Louis, MO 63110
Phone
(314) 273-3376
Enumerated
Jun 5, 2015
Record last updated
Apr 17, 2025
Fax
(314) 454-4232
Medicaid ID
200135208 MO
Medicare enrollment
Enrolled (PECOS I20240203000347); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1 Childrens PL

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mohamed Abdelbaki, MDPediatric Hematology & Oncology Physician1508021361
  2. Christi Abeln, PNPPediatric Nurse Practitioner1023034253
  3. Loren Abernathy, PNPPediatric Nurse Practitioner1215583117
  4. Freddy-May Abisamra, CGCGenetic Counselor (M.S.)1306538111
  5. Manjusha Abraham, MDPediatric Critical Care Medicine Physician1508126699
  6. Philip Abraham, MDHospitalist Physician1720309016

Verify Liza Hillary Siegel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2022009588
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $35.61

2 payments; by number, the most common kind was food and beverage; the largest payer was Krystal Biotech Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Liza Siegel$35.61
  2. Specialty average$8,544.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Washington UniversitySaint Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Liza Hillary Siegel among 278 dermatology physician records in Missouri

Liza Hillary Siegel, MD is one of 278 dermatology physician records with a practice address in Missouri. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 69% of them.

  • NPI issued2015 · 69% of these records are older, 27% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2015 · median 2008 among the 190 with a school on file
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Missouri

There are 278 dermatology physician records in Missouri.

The 8 dermatology physician records with the nearest ZIP codes

  1. Susan Bayliss, MDSaint Louis, MO 631101477571974
  2. David Berk, MDSaint Louis, MO 631101205045192
  3. Marco Costanza, MDSaint Louis, MO 631101316649783
  4. Carrie Coughlin, MDSaint Louis, MO 631101780996470
  5. Madeliene Gainers, MDSt Louis, MO 631101679779565
  6. Cory Jonak, MDSaint Louis, MO 631101962134353
  7. Paul Klekotka, MDSaint Louis, MO 631101093737132
  8. Morgan Nguyen, MDSaint Louis, MO 631101578046777

Common questions

What is Liza Hillary Siegel, MD's NPI number?

Liza Hillary Siegel, MD's National Provider Identifier (NPI) is 1265812184, issued on Jun 5, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Liza Hillary Siegel, MD located?

The NPPES record lists a practice address at 1 Childrens PL, Saint Louis, MO, 63110. Phone: (314) 273-3376. Providers update this record themselves, so call before visiting.

How can I verify Liza Hillary Siegel, MD's license?

NPPES lists Missouri license number 2022009588, 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.

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.