NPPES file of Aug 9, 2026

Amy Gwyn Mercer, APRN, FNP-C

Family Nurse Practitioner · Waco, TX

Amy Gwyn Mercer, APRN, FNP-C is a family nurse practitioner with a practice address in Waco, Texas, and NPI 1861902900, issued on Oct 3, 2017. Check the license (Texas AP135287, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861902900
Name
Amy Gwyn Mercer
Credential
APRN, FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP135287 TX
Self-reported in NPPES; status is on the state search
Practice location
7125 New Sanger Ave Ste A, Waco, TX 76712
Phone
(254) 399-5400
Enumerated
Oct 3, 2017
Record last updated
Nov 10, 2023
Fax
(254) 772-8669
Medicaid ID
3773202-01 TX
Medicare enrollment
Enrolled (PECOS I20171025000187); 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 7125 New Sanger Ave Ste A

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

  1. Sherwin Attai, MDInterventional Cardiology Physician1861540726
  2. Timothy Ball, MDClinical Cardiac Electrophysiology Physician1225342397
  3. Clay Barbin, M.D.Interventional Cardiology Physician1659715696
  4. Brian Barnett, M.D.Interventional Cardiology Physician1699902585
  5. Rodney Brown, M.D.Cardiovascular Disease Physician1639174337
  6. Meryl Burchardt, APRN, ACNPAcute Care Nurse Practitioner1972527257

Verify Amy Gwyn Mercer 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 AP135287
    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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3.7 times the Medicare Part D claims of the average family nurse practitioner in 2024

4,833 Medicare Part D claims for 957 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Amy Mercer4,833
  2. Specialty average1,305

Most prescribed

  1. Metoprolol Succinate437 claims
  2. Amlodipine Besylate392 claims
  3. Carvedilol382 claims
  4. Spironolactone362 claims
  5. Atorvastatin Calcium315 claims
  6. Eliquis274 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $657.29

42 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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. Amy Mercer$657.29
  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. Waco Cardiology AssociatesWaco, TX

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

Amy Gwyn Mercer among 21,242 family nurse practitioner records in Texas

Amy Gwyn Mercer, APRN, FNP-C is one of 21,242 family nurse practitioner records with a practice address in Texas. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 36% of them.

  • NPI issued2017 · 36% of these records are older, 58% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2017 · median 2018 among the 11,286 with a school on file
  • Record last updated2023 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

152 family nurse practitioner records list a practice address in Waco

They are 152 of the 3,295 NPPES records with a practice address in Waco, and 21,242 family nurse practitioner records in Texas.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Amanda Burke, FNPWaco, TX 767121942505714
  2. Constance Cass, FNPWaco, TX 767121992959217
  3. Janis Giles, FNPWaco, TX 767121871585737
  4. Vibha Goyal, MSN, APNWaco, TX 767121174754584
  5. Julie Hale, FNP-CWaco, TX 767121609905652
  6. Jean Herzog, NPWaco, TX 767121366591810
  7. Carrie Johnson, FNP-CWoodway, TX 767121316071624
  8. Jeffrey Martin, GFNPWaco, TX 767121669612412

Common questions

What is Amy Gwyn Mercer, APRN, FNP-C's NPI number?

Amy Gwyn Mercer, APRN, FNP-C's National Provider Identifier (NPI) is 1861902900, issued on Oct 3, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Amy Gwyn Mercer, APRN, FNP-C located?

The NPPES record lists a practice address at 7125 New Sanger Ave Ste A, Waco, TX, 76712. Phone: (254) 399-5400. Providers update this record themselves, so call before visiting.

How can I verify Amy Gwyn Mercer, APRN, FNP-C's license?

NPPES lists Texas license number AP135287, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Amy Gwyn Mercer, APRN, FNP-C prescribe under Medicare Part D?

In 2024, Amy Gwyn Mercer, APRN, FNP-C had 4,833 Medicare Part D claims for 957 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Amy Gwyn Mercer, APRN, FNP-C's MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.