Tammy Williams, NP-C
NPI 1437282415 · Adult Health Nurse Practitioner · Madison, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Williams, NP-C is a Adult Health Nurse Practitioner provider in Madison, FL (NPI 1437282415).
Provider details
- NPI number
- 1437282415
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- ARNP1396122 (FL)
Specialties & taxonomies
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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,413 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 797 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 623 | $111 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 503 | $79 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 132 | $16 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 81 | $12 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 146 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 776 | 240 |
| Amlodipine Besylate | 510 | 166 |
| Levothyroxine Sodium | 500 | 152 |
| Losartan Potassium | 404 | 125 |
| Lisinopril | 329 | 111 |
| Hydrochlorothiazide | 320 | 103 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$47 across 3 records (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
Registry dates
- Enumerated
- 2007-03-13
- Last updated
- 2008-08-19
Frequently asked questions
- What is Tammy Williams's NPI number?
- Tammy Williams's National Provider Identifier (NPI) is 1437282415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Williams's specialty?
- Tammy Williams is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Williams located?
- Tammy Williams's practice location on file with NPPES is 256 Sw Washington Ave, Madison, FL 32340-1982.
- What is Tammy Williams's phone number?
- The practice phone number listed in the NPPES registry for Tammy Williams is (850) 973-4590.
- Does Tammy Williams accept Medicare?
- Tammy Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Williams's NPI active?
- Yes — Tammy Williams's NPI (1437282415) is active in the NPPES registry as of the last update on 2008-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.