Mary C. Shellnutt, APRN, AGCNS-BC
Clinical Nurse Specialist · Tyler, TX
Mary C. Shellnutt, APRN, AGCNS-BC is a clinical nurse specialist with a practice address in Tyler, Texas, and NPI 1811366552, issued on Sep 23, 2015. Check the license (Texas AP128617, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary C. Shellnutt
- Credential
- APRN, AGCNS-BC
- Primary taxonomy
- Clinical Nurse Specialist 364S00000X
- License number
- AP128617 TX
Self-reported in NPPES; status is on the state search - Practice location
- 501 Saunders Ave Ste 320, Tyler, TX 75702
- Phone
- (903) 606-5140
- Enumerated
- Sep 23, 2015
- Record last updated
- Mar 12, 2024
- Medicare enrollment
- Enrolled (PECOS I20240112001015); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical nurse specialist records → All 151 in Texas → Look up another NPI →
Also registered at 501 Saunders Ave Ste 320
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tara Peurifoy, AGACNP-BCNurse Practitioner1598586943
- Chelsea Waldron, NPNurse Practitioner1215708102
Verify Mary C. Shellnutt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license AP128617Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average clinical nurse specialist in 2024
54 Medicare Part D claims for 33 beneficiaries, against an average of 957 among the 361 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Acetaminophen-Codeine14 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: $18.34
1 payment: food and beverage; the largest payer was Avanos Medical. The 457 providers of this specialty with any payment received $871.23 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Christus Trinity ClinicTexarkana, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary C. Shellnutt among 151 clinical nurse specialist records in Texas
Mary C. Shellnutt, APRN, AGCNS-BC is one of 151 clinical nurse specialist records with a practice address in Texas. 53% 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 64% of them.
- NPI issued2015 · 64% of these records are older, 32% newer
- In a Medicare fileYes · 53% of these records are
- In the CMS Doctors and Clinicians fileYes · 36% of these records are
- Graduated2018 · median 2016 among the 54 with a school on file
- Record last updated2024 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 364S00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Nurse Specialist providers in Texas
There are 151 clinical nurse specialist records in Texas.
All 151 in Texas → Every provider in Tyler → Clinical Nurse Specialist nationwide →
The 8 clinical nurse specialist records with the nearest ZIP codes
- Liffy Cherian, MSN, APRN,AGCNS-BCDallas, TX 753901265073225
- Margaret McLean, CNS-BCDallas, TX 753901902106073
- Emily Simon, CNSDallas, TX 753901699159715
- Randall McCoy, MSN, RN, CNS-AGFort Worth, TX 761041134616733
- Charlyn WagleyFort Worth, TX 761041174249346
- Jennifer Johnson, DNP, APRN, ACNS-BCFort Worth, TX 761321417221755
- Leslie Rodriguez, RN, ACNS-BC, APRNDallas, TX 752461871849042
- Melissa Rozakis, CNSDallas, TX 752431053643726
Common questions
What is Mary C. Shellnutt, APRN, AGCNS-BC's NPI number?
Mary C. Shellnutt, APRN, AGCNS-BC's National Provider Identifier (NPI) is 1811366552, issued on Sep 23, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Mary C. Shellnutt, APRN, AGCNS-BC located?
The NPPES record lists a practice address at 501 Saunders Ave Ste 320, Tyler, TX, 75702. Phone: (903) 606-5140. Providers update this record themselves, so call before visiting.
How can I verify Mary C. Shellnutt, APRN, AGCNS-BC's license?
NPPES lists Texas license number AP128617, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Mary C. Shellnutt, APRN, AGCNS-BC prescribe under Medicare Part D?
In 2024, Mary C. Shellnutt, APRN, AGCNS-BC had 54 Medicare Part D claims for 33 beneficiaries; the average among clinical nurse specialist prescribers was 957. 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.