Tammy S. Willett, AGNP
Adult Health Nurse Practitioner · Flint, MI
Tammy S. Willett, AGNP is an adult health nurse practitioner with a practice address in Flint, Michigan, and NPI 1568694776, issued on Aug 20, 2009. Check the license (Michigan 4704199297, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammy S. Willett
- Credential
- AGNP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License numbers
- 4704199297 MI
AP3372 AZ
SNP20012 CO
Self-reported in NPPES; status is on the state search - Practice location
- 302 Kensington Ave, Flint, MI 48503
- Phone
- (810) 762-8400
- Enumerated
- Aug 20, 2009
- Record last updated
- Dec 1, 2025
- Fax
- (810) 762-8118
- Medicare enrollment
- Enrolled (PECOS I20251216002432); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 831 in Michigan → Look up another NPI →
Also registered at 302 Kensington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tammy S. Willett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704199297Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
476 Medicare Part D claims for 182 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 15 claims were for opioids.
Most prescribed
- Levothyroxine Sodium34 claims
- Potassium Chloride26 claims
- Nystatin25 claims
- Ondansetron Odt25 claims
- Eliquis24 claims
- Pantoprazole Sodium19 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): 81.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $65.00
1 payment: education; the largest payer was Incyte Corporation. The 12,291 providers of this specialty with any payment received $946.40 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
- Cancer And Hematology Centers OF Western MI, P.C.Flint, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammy S. Willett among 831 adult health nurse practitioner records in Michigan
Tammy S. Willett, AGNP is one of 831 adult health nurse practitioner records with a practice address in Michigan. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 33% of them.
- NPI issued2009 · 33% of these records are older, 63% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2005 · median 2014 among the 406 with a school on file
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in Michigan
There are 831 adult health nurse practitioner records in Michigan.
All 831 in Michigan → Every provider in Flint → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Shauna Cooks, NURSE PRACTITIONERFlint, MI 485031356893366
- Francesca Petrilli, DNP, ARNP-BCFlint, MI 485031952354631
- Jacqueline Smiley, N.P.Flint, MI 485031386771830
- Elizabeth Vansickle, ARNPFlint, MI 485031063410009
- Ryan Wasielewski, R.N., AGPCNPFlint, MI 485031750839312
- Karen Wiltse, ANPFlint, MI 485031063767507
- Christine Cheneworth, FNP-CFlint, MI 485021619984978
- Lisa Lucas, APRN-BC, NPFlint, MI 485041275839615
Common questions
What is Tammy S. Willett, AGNP's NPI number?
Tammy S. Willett, AGNP's National Provider Identifier (NPI) is 1568694776, issued on Aug 20, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Tammy S. Willett, AGNP located?
The NPPES record lists a practice address at 302 Kensington Ave, Flint, MI, 48503. Phone: (810) 762-8400. Providers update this record themselves, so call before visiting.
How can I verify Tammy S. Willett, AGNP's license?
NPPES lists Michigan license number 4704199297, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Tammy S. Willett, AGNP prescribe under Medicare Part D?
In 2024, Tammy S. Willett, AGNP had 476 Medicare Part D claims for 182 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.
What is Tammy S. Willett, AGNP's MIPS final score?
The 2023 MIPS final score is 81.5 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.