Tammy Willett, AGNP
NPI 1568694776 · Adult Health Nurse Practitioner · Flint, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Willett, AGNP is a Adult Health Nurse Practitioner provider in Flint, MI (NPI 1568694776).
Provider details
- NPI number
- 1568694776
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- AGNP
- Sex
- Female
- Sole proprietor
- No
- License
- 4704199297 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
579 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 476 | $118 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 103 | $80 |
Typical Medicare-allowed amounts for these services range $80–$118 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 34 | — |
| Potassium Chloride | 26 | 17 |
| Nystatin | 25 | 18 |
| Ondansetronbrand: Ondansetron Odt | 25 | 18 |
| Apixabanbrand: Eliquis | 24 | — |
| Pantoprazole Sodium | 19 | — |
| Hydroxyurea | 18 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$65 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 13041 N Del Webb BlvdSuite 200Sun City, AZ 85351Phone: (623) 832-0300Fax: (623) 285-2801
Registry dates
- Enumerated
- 2009-08-20
- Last updated
- 2025-12-01
- Certified
- 2025-12-01
Frequently asked questions
- What is Tammy Willett's NPI number?
- Tammy Willett's National Provider Identifier (NPI) is 1568694776, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Willett's specialty?
- Tammy Willett is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Willett located?
- Tammy Willett's practice location on file with NPPES is 302 Kensington Ave, Flint, MI 48503-2044.
- What is Tammy Willett's phone number?
- The practice phone number listed in the NPPES registry for Tammy Willett is (810) 762-8400.
- Does Tammy Willett accept Medicare?
- Tammy Willett is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Willett's NPI active?
- Yes — Tammy Willett's NPI (1568694776) is active in the NPPES registry as of the last update on 2025-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.