NPPES file of Aug 9, 2026

Jessica Lynn Underhill, DO

Family Medicine Physician · Saint Peters, MO

Jessica Lynn Underhill, DO is a family medicine physician with a practice address in Saint Peters, Missouri, and NPI 1417362880, issued on Jun 24, 2014. Check the license (Missouri 2016025180, 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
1417362880
Name
Jessica Lynn Underhill
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
2016025180 MO
Self-reported in NPPES; status is on the state search
Practice location
6994 Mexico RD, Saint Peters, MO 63376
Phone
(636) 397-3231
Enumerated
Jun 24, 2014
Record last updated
Nov 12, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170816000773); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 6994 Mexico RD

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

  1. Candace Calton, FNP-CFamily Nurse Practitioner1396568689
  2. Mark Hingst, M.D.Family Medicine Physician1053372847
  3. Cindy Myers, FNP, BCFamily Nurse Practitioner1316464001
  4. Joy Stowell, M.D.Family Medicine Physician1194740589
  5. Christine Vogel, DOFamily Medicine Physician1124461140
  6. Kay Wunderlich, FNP-CNurse Practitioner1568180289

Verify Jessica Lynn Underhill 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 2016025180
    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

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2.3 times the Medicare Part D claims of the average family medicine physician in 2024

8,071 Medicare Part D claims for 629 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 323 claims were for opioids.

  1. Jessica Underhill8,071
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium510 claims
  2. Levothyroxine Sodium418 claims
  3. Lisinopril282 claims
  4. Losartan Potassium255 claims
  5. Pantoprazole Sodium223 claims
  6. Alprazolam218 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 2 group practices

  1. Aging Well Health Care, LLCSaint Louis, MO
  2. Ssm Medical Group IncSaint Peters, MO

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

27 family medicine physician records list a practice address in Saint Peters

They are 27 of the 1,259 NPPES records with a practice address in Saint Peters, and 2,991 family medicine physician records in Missouri.

Other family medicine physician records in Missouri

  1. Mohammad Abbas, DOKirksville, MO1518537679
  2. Brandon Abbott, D.O.Kansas City, MO1356875702
  3. Ann Abbott Marin, DOArnold, MO1477132421
  4. Mohamed Abdalaziz, MDKansas City, MO1538578075
  5. Karam Abdelmasih, MD, APFestus, MO1093288508
  6. Afsheen Abdullah Patel, MDLees Summit, MO1598070377
  7. Christopher Abercrombie, DOArnold, MO1093787558
  8. Avery Abernathy, D.O.Kansas City, MO1013207836
  9. Kristia Abernathy, MDSaint Louis, MO1710545405
  10. Grant Abkemeier, DOColumbia, MO1922933712

Common questions

What is Jessica Lynn Underhill, DO's NPI number?

Jessica Lynn Underhill, DO's National Provider Identifier (NPI) is 1417362880, issued on Jun 24, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Jessica Lynn Underhill, DO located?

The NPPES record lists a practice address at 6994 Mexico RD, Saint Peters, MO, 63376. Phone: (636) 397-3231. Providers update this record themselves, so call before visiting.

How can I verify Jessica Lynn Underhill, DO's license?

NPPES lists Missouri license number 2016025180, 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 Jessica Lynn Underhill, DO prescribe under Medicare Part D?

In 2024, Jessica Lynn Underhill, DO had 8,071 Medicare Part D claims for 629 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.