NPPES file of Aug 9, 2026

Sarah Chalk, APRN, FNP-BC

Family Nurse Practitioner · Union, MO

Sarah Chalk, APRN, FNP-BC is a family nurse practitioner with a practice address in Union, Missouri, and NPI 1104590801, issued on Aug 5, 2021. Check the license (Missouri 2021027709, 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
1104590801
Name
Sarah Chalk
Credential
APRN, FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
2021027709 MO
Self-reported in NPPES; status is on the state search
Practice location
1935 Prairie Dell RD Ste 400, Union, MO 63084
Phone
(636) 649-3085
Enumerated
Aug 5, 2021
Record last updated
Jun 24, 2024
Fax
(636) 649-3087
Medicare enrollment
Enrolled (PECOS I20210928001773); 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 1935 Prairie Dell RD Ste 400

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

  1. Casey Buncher, FNP-CFamily Nurse Practitioner1891336178
  2. Gretchen Farmer, MDInternal Medicine Physician1720283450
  3. Elizabeth Hammer, M.D.Pediatrics Physician1073540886
  4. Joi Irving, M.D.Internal Medicine Physician1457508665

Verify Sarah Chalk 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 2021027709
    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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66% fewer Medicare Part D claims than the average family nurse practitioner in 2024

444 Medicare Part D claims for 119 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Sarah Chalk444
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium27 claims
  2. Levothyroxine Sodium21 claims
  3. Topiramate20 claims
  4. Fluoxetine Hcl18 claims
  5. Albuterol Sulfate Hfa17 claims
  6. Escitalopram Oxalate14 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: $737.83

39 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sarah Chalk$737.83
  2. Specialty average$650.95

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. Mercy Clinic East CommunitiesUnion, MO

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

9 family nurse practitioner records list a practice address in Union

They are 9 of the 228 NPPES records with a practice address in Union, and 5,226 family nurse practitioner records in Missouri.

Other family nurse practitioner records in Missouri

  1. Sara Abben, APRNGrandview, MO1760105274
  2. Andrea Abbott, FNP-CChesterfield, MO1588003842
  3. Dana Abdel Jawad, DNP, APRN, FNP-CKansas City, MO1245185974
  4. Zara Abdush-Shakir Bever, FNPKansas City, MO1265283923
  5. Patricia Abele, NPChesterfield, MO1265418057
  6. Abisola AbimbolaSaint Louis, MO1083440457
  7. Melissa Abramovitz, FNP-BCKansas City, MO1679170005
  8. Ana Abrudan-Danalache, FNPWillard, MO1053035394
  9. Karen Abt, FNPCape Girardeau, MO1144672577
  10. Nadeen AbusalimKansas City, MO1437030954

Common questions

What is Sarah Chalk, APRN, FNP-BC's NPI number?

Sarah Chalk, APRN, FNP-BC's National Provider Identifier (NPI) is 1104590801, issued on Aug 5, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Chalk, APRN, FNP-BC located?

The NPPES record lists a practice address at 1935 Prairie Dell RD Ste 400, Union, MO, 63084. Phone: (636) 649-3085. Providers update this record themselves, so call before visiting.

How can I verify Sarah Chalk, APRN, FNP-BC's license?

NPPES lists Missouri license number 2021027709, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Sarah Chalk, APRN, FNP-BC prescribe under Medicare Part D?

In 2024, Sarah Chalk, APRN, FNP-BC had 444 Medicare Part D claims for 119 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.