NPPES file of Aug 9, 2026

Sarah Mertz, FNP

Family Nurse Practitioner · Melissa, TX

Sarah Mertz, FNP is a family nurse practitioner with a practice address in Melissa, Texas, and NPI 1316418635, issued on Dec 14, 2018. Check the license (Texas AP139433, as entered in NPPES) with the Texas 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
1316418635
Name
Sarah Mertz
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP139433 TX
Self-reported in NPPES; status is on the state search
Practice location
3591 Mckinney St Ste 400, Melissa, TX 75454
Phone
(972) 464-1611
Enumerated
Dec 14, 2018
Record last updated
Mar 30, 2026
Fax
(972) 913-6216
Medicare enrollment
Enrolled (PECOS I20190516002674); 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 3591 Mckinney St Ste 400

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

  1. Lauren Fairbanks, NPFamily Nurse Practitioner1780169953
  2. Jaime Gamboa, FNPNurse Practitioner1134631542
  3. Erin Smith, FNP-CFamily Nurse Practitioner1699238303
  4. Ryan Wolford, NPNurse Practitioner1396245320

Verify Sarah Mertz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license AP139433    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 Texas 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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94% fewer Medicare Part D claims than the average family nurse practitioner in 2024

82 Medicare Part D claims for 47 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Sarah Mertz82
  2. Specialty average1,305

Most prescribed

  1. Prednisone18 claims
  2. Azithromycin12 claims
  3. Amoxicillin-Clavulanate Potass11 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. Communitymed PLLCMelissa, TX

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

14 family nurse practitioner records list a practice address in Melissa

They are 14 of the 136 NPPES records with a practice address in Melissa, and 21,242 family nurse practitioner records in Texas.

All 14 in Melissa → All 21,242 in Texas → Every provider in Melissa →

Other family nurse practitioner records in Texas

  1. Ashley Aaron, FNPWaco, TX1053821504
  2. Christina Aaron, FNPTexarkana, TX1457787426
  3. Lori Aaron, FNP-CFrisco, TX1619387974
  4. Lauren Aase, FNPSheppard Afb, TX1578550299
  5. Olivia AbabioCypress, TX1588171995
  6. Lilian Abagwe, NPWylie, TX1396215620
  7. Vivian Abaidoo, NP-CHouston, TX1760071971
  8. Zuniley Aballe-Hernandez, FNP-CHouston, TX1952054066
  9. Jorge Abalo Redden, FNPKaty, TX1932991122
  10. Jennifer Abalos, FNPPlano, TX1841452984

Common questions

What is Sarah Mertz, FNP's NPI number?

Sarah Mertz, FNP's National Provider Identifier (NPI) is 1316418635, issued on Dec 14, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Mertz, FNP located?

The NPPES record lists a practice address at 3591 Mckinney St Ste 400, Melissa, TX, 75454. Phone: (972) 464-1611. Providers update this record themselves, so call before visiting.

How can I verify Sarah Mertz, FNP's license?

NPPES lists Texas license number AP139433, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Sarah Mertz, FNP prescribe under Medicare Part D?

In 2024, Sarah Mertz, FNP had 82 Medicare Part D claims for 47 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.