NPPES file of Aug 9, 2026

Tammy Lynn Walker

Family Nurse Practitioner · Carlisle, IN

Tammy Lynn Walker is a family nurse practitioner with a practice address in Carlisle, Indiana, and NPI 1124808803, issued on Oct 2, 2023. Check the license (Indiana 71014487A, as entered in NPPES) with the Indiana 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
1124808803
Name
Tammy Lynn Walker
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
71014487A IN
28176873A IN
Self-reported in NPPES; status is on the state search
Practice location
405 E Harrison St, Carlisle, IN 47838
Phone
(812) 564-6050
Enumerated
Oct 2, 2023
Record last updated
Mar 21, 2025
Medicare enrollment
Enrolled (PECOS I20231121001098); 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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Verify Tammy Lynn Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Indiana board licenses this profession
    Search for license 71014487A
    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 Indiana license search

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24% fewer Medicare Part D claims than the average family nurse practitioner in 2024

986 Medicare Part D claims for 229 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Tammy Walker986
  2. Specialty average1,305

Most prescribed

  1. Omeprazole40 claims
  2. Albuterol Sulfate Hfa34 claims
  3. Levothyroxine Sodium30 claims
  4. Metformin Hcl Er28 claims
  5. Methylprednisolone26 claims
  6. Lisinopril24 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.

One hospital affiliation

  1. Sullivan County Community HospitalSullivan, IN · Critical Access Hospitals

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

Tammy Lynn Walker among 5,867 family nurse practitioner records in Indiana

Tammy Lynn Walker is one of 5,867 family nurse practitioner records with a practice address in Indiana. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 81% of them.

  • NPI issued2023 · 81% of these records are older, 12% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2023 · median 2018 among the 3,953 with a school on file
  • Record last updated2025 · 33% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Family Nurse Practitioner providers in Indiana

There are 5,867 family nurse practitioner records in Indiana.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Deborah Bedwell, APNCarlisle, IN 478381376901058
  2. Latasha Jones, FNP-CCarlisle, IN 478381184255440
  3. Kayla Kellams, MSN,FNP-CCarlisle, IN 478381730813015
  4. Nikita ChatterjeeCenterpoint, IN 478401841140498
  5. Penelope Callaway, FNP-CBrazil, IN 478341487813085
  6. Nicole CookClinton, IN 478421740520600
  7. Jennifer Gabriel, FNP-CBrazil, IN 478341801776638
  8. Marcy Gardner, NPBrazil, IN 478341629549324

Common questions

What is Tammy Lynn Walker's NPI number?

Tammy Lynn Walker's National Provider Identifier (NPI) is 1124808803, issued on Oct 2, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Tammy Lynn Walker located?

The NPPES record lists a practice address at 405 E Harrison St, Carlisle, IN, 47838. Phone: (812) 564-6050. Providers update this record themselves, so call before visiting.

How can I verify Tammy Lynn Walker's license?

NPPES lists Indiana license number 71014487A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.

How much does Tammy Lynn Walker prescribe under Medicare Part D?

In 2024, Tammy Lynn Walker had 986 Medicare Part D claims for 229 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.