Ann Marie Walker, FNP-C
Family Nurse Practitioner · Westfield, IN
Ann Marie Walker, FNP-C is a family nurse practitioner with a practice address in Westfield, Indiana, and NPI 1740747435, issued on Feb 28, 2019. Check the license (Indiana 71008808A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ann Marie Walker
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 71008808A IN
Self-reported in NPPES; status is on the state search - Practice location
- 17600 Shamrock Blvd Ste 500B, Westfield, IN 46074
- Phone
- (317) 867-5263
- Enumerated
- Feb 28, 2019
- Record last updated
- Feb 28, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (317) 867-2031
- Medicare enrollment
- Enrolled (PECOS I20190314000123); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,867 in Indiana → Look up another NPI →
Also registered at 17600 Shamrock Blvd Ste 500B
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kaitlin Rothschild, PA-CPhysician Assistant1669874111
Verify Ann Marie Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 71008808ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average family nurse practitioner in 2024
350 Medicare Part D claims for 75 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium21 claims
- Omeprazole20 claims
- Albuterol Sulfate Hfa15 claims
- Rosuvastatin Calcium15 claims
- Bupropion Xl14 claims
- Lisinopril14 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 MIPS final score for 2023 (Medicare payment program): 97.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $139.91
3 payments; by number, the most common kind was food and beverage; the largest payer was Axsome Therapeutics, 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.
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
- Riverview HospitalWestfield, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann Marie Walker among 5,867 family nurse practitioner records in Indiana
Ann Marie Walker, FNP-C 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 2019, is newer than 52% of them.
- NPI issued2019 · 52% of these records are older, 41% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2018 · median 2018 among the 3,953 with a school on file
- Record last updated2019 · 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).
23 family nurse practitioner records list a practice address in Westfield
They are 23 of the 676 NPPES records with a practice address in Westfield, and 5,867 family nurse practitioner records in Indiana.
All 5,867 in Indiana → Every provider in Westfield → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Ashley Asher, RN, BS, NP-CWestfield, IN 460741396273967
- Katelyn Boone, NP-CWestfield, IN 460741881357168
- Courtney Boswell, FNPWestfield, IN 460741730650581
- Kimberly Hatchett, NPWestfield, IN 460741871551838
- Janet Hertzler, FNPWestfield, IN 460741891723409
- Jessica Larrison, NPWestfield, IN 460741336892587
- Hannah McConkey, NPWestfield, IN 460741457873945
- Diana MesehaCarmel, IN 460741992582332
Common questions
What is Ann Marie Walker, FNP-C's NPI number?
Ann Marie Walker, FNP-C's National Provider Identifier (NPI) is 1740747435, issued on Feb 28, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Ann Marie Walker, FNP-C located?
The NPPES record lists a practice address at 17600 Shamrock Blvd Ste 500B, Westfield, IN, 46074. Phone: (317) 867-5263. Providers update this record themselves, so call before visiting.
How can I verify Ann Marie Walker, FNP-C's license?
NPPES lists Indiana license number 71008808A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
How much does Ann Marie Walker, FNP-C prescribe under Medicare Part D?
In 2024, Ann Marie Walker, FNP-C had 350 Medicare Part D claims for 75 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Ann Marie Walker, FNP-C's MIPS final score?
The 2023 MIPS final score is 97.6 of 100. 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.