NPPES file of Aug 9, 2026

Elizabeth Vollmar, FNP-C

Nurse Practitioner · O Fallon, MO

Elizabeth Vollmar, FNP-C is a nurse practitioner with a practice address in O Fallon, Missouri, and NPI 1124490107, issued on Oct 29, 2015. Check the license (Missouri 2015037598, as entered in NPPES) with the Missouri board that licenses this profession; 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
1124490107
Name
Elizabeth Vollmar
Credential
FNP-C
Primary taxonomy
Nurse Practitioner 363L00000X
License number
2015037598 MO
Self-reported in NPPES; status is on the state search
Practice location
1101 Highway K, O Fallon, MO 63366
Phone
(636) 379-6363
Enumerated
Oct 29, 2015
Record last updated
Jan 18, 2024
Medicare enrollment
Enrolled (PECOS I20151218000294); accepts Medicare assignment
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 1101 Highway K

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

  1. Tanvira Alam, DOObstetrics & Gynecology Physician1265670525
  2. Samantha Branson, FNPFamily Nurse Practitioner1386186732
  3. Riley Busch, PA-CPhysician Assistant1013775238
  4. Christine Cortadillo, D.O.Obstetrics & Gynecology Physician1417186099
  5. Courtney Croy, PT, DPTPhysical Therapist1952055022
  6. Lindsay Dickerhoff, M.D.Obstetrics & Gynecology Physician1790028520

Verify Elizabeth Vollmar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 2015037598
    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
Find 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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86% fewer Medicare Part D claims than the average nurse practitioner in 2024

160 Medicare Part D claims for 61 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Elizabeth Vollmar160
  2. Specialty average1,109

Most prescribed

  1. Estradiol38 claims
  2. Medroxyprogesterone Acetate15 claims
  3. Valacyclovir13 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.

Bills Medicare through one group practice

  1. Ssm Medical Group IncO Fallon, MO

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

Elizabeth Vollmar among 1,720 nurse practitioner records in Missouri

Elizabeth Vollmar, FNP-C is one of 1,720 nurse practitioner records with a practice address in Missouri. 78% 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 40% of them.

  • NPI issued2015 · 40% of these records are older, 55% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2015 · median 2017 among the 1,080 with a school on file
  • Record last updated2024 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

36 nurse practitioner records list a practice address in O Fallon

They are 36 of the 1,225 NPPES records with a practice address in O Fallon, and 1,720 nurse practitioner records in Missouri.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Lara Burnett, FNP-BCO Fallon, MO 633661154652360
  2. Caitlin Golliver, APRN-CNPO Fallon, MO 633661821877465
  3. Dawn JohnsO Fallon, MO 633661073903241
  4. Dawn MatschinerO Fallon, MO 633661710098454
  5. Lara Penn, FNPO Fallon, MO 633661538406954
  6. Kimberly Ranck-Weiss, N.P.O Fallon, MO 633661336344274
  7. Jennifer Schallert, NPO Fallon, MO 633661932481884
  8. Sandra Scharf, N.P.O Fallon, MO 633661295920817

Common questions

What is Elizabeth Vollmar, FNP-C's NPI number?

Elizabeth Vollmar, FNP-C's National Provider Identifier (NPI) is 1124490107, issued on Oct 29, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Vollmar, FNP-C located?

The NPPES record lists a practice address at 1101 Highway K, O Fallon, MO, 63366. Phone: (636) 379-6363. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Vollmar, FNP-C's license?

NPPES lists Missouri license number 2015037598, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Elizabeth Vollmar, FNP-C prescribe under Medicare Part D?

In 2024, Elizabeth Vollmar, FNP-C had 160 Medicare Part D claims for 61 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.