Tammy Willett, AGNP
Adult Health Nurse Practitioner in Flint, Michigan. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 29,492 in Adult Health Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.
What the federal data shows
Tammy Willett, AGNP reported a CMS MIPS final score of 81.5/100 — below the 83.1 national average — and filed 285 Medicare Part D claims in 2023.
- 81.5/100
- MIPS score · -2 vs avg
- 285
- Part D claims, 2023
- $65
- industry payments (Sunshine Act)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.
Tammy Willett, AGNP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure
82 36th percentile higher than 36% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Tammy Willett, AGNP sits
This provider among adult health nurse practitioner peers
Across the 4,289 adult health nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Tammy Willett, AGNP writes more Part D claims than 42% of them and scores higher on MIPS quality than 34% — placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one adult health nurse practitioner peer from a representative sample of 60; the gold marker is Tammy Willett, AGNP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Tammy Willett, AGNP?
Near national averagePrimary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in Michigan
How Adult Health Nurse Practitioner compares to other specialties among Michigan providers
Largest specialties in Michigan (% of in-state providers)
Adult Health Nurse Practitioner ranks #53 among Michigan's specialties (0.3% of in-state providers)
Each bar is a specialty's share of the Michigan provider total, by primary NUCC taxonomy. The highlighted bar is Adult Health Nurse Practitioner; the long tail of smaller specialties is omitted for legibility.
Medicare quality performance — MIPS
Tammy Willett, AGNP's 2023 MIPS final score plotted against the Adult Health Nurse Practitioner national average
- MIPS Final Score
- 81.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Adult Health Nurse Practitioner) — 81.5/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Cost dim CMS Cost category
- Specialty volume Adult Health Nurse Practitioner US NPIs
81.5/100 MIPS final score — 1.6 pts below the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: Adult Health Nurse Practitioner. Cost dim: 38.3.
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Tammy Willett, AGNP appears in the CMS NPPES registry as a Adult Health Nurse Practitioner provider holding AGNP credentials at 302 KENSINGTON AVE, Flint, MI, 48503, with a listed phone of (810) 762-8400. NPI 1568694776 was issued on 08/20/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Willett most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 285 prescription claims written by this provider, covering 144 Medicare beneficiaries and totaling roughly $231K in drug spend, with an opioid prescribing rate of 4.6%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 81.5/100 for the 2023 performance year, compared with the national average of 83.1.
Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,492 enrolled providers across 55 states and an average of 1,201 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1568694776 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | AGNP |
| Gender | Female |
| NPI Issued | 08/20/2009 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm Tammy Willett, AGNP's current license status, disciplinary history, and board certifications with the Michigan Department of Licensing and Regulatory Affairs in Michigan before relying on this page for a clinical or care decision.
How we sourced this profile
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
Reporting: Group practice
Hospital and facility affiliations
Facilities where Tammy Willett, AGNP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) — CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Tammy Willett, AGNP. Source: openpaymentsdata.cms.gov.
Total received
$65
Largest payer
Incyte Corporation
Most common payment type
Education
Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context — Michigan MI-BOM 2023 annual report
Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 — they are NOT specific to Tammy Willett, AGNP. To verify Tammy Willett, AGNP's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 402
- Total Day Supply
- 10,359
- Generic Drug Cost
- $8K
- Opioid Claims
- 13 (4.6% rate)
- Antibiotic Claims
- 19
Patient Demographics
- Average Patient Age
- 73.9 years
- Avg HCC Risk Score
- 2.64
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 11, 65-74: 62, 75-84: 60, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Tammy Willett, AGNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Letrozole
Letrozole
19 claims
- Pantoprazole Sodium
Pantoprazole Sodium
18 claims
- Eliquis
Eliquis
16 claims
- Nystatin
Nystatin
12 claims
| Drug | Claims |
|---|---|
| Letrozole | 19 |
| Pantoprazole Sodium | 18 |
| Eliquis Apixaban | 16 |
| Nystatin | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Health Nurse Practitioner Overview
How Tammy Willett, AGNP fits within the Adult Health Nurse Practitioner landscape nationally.
Tammy Willett, AGNP's 285 claims are below the specialty average of 1,201.
Nearby Adult Health Nurse Practitioner Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Willett.
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Michigan medical board — federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Adult Health Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
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Data Sources
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology