Tammy Jean Williams, ARNP

  • Lake Butler, FL
  • Family nurse practitioner
NPI1285877258PAC ID0749467959
Medicare services, 2024
46
Medicare patients, 2024
42
Part D claims, 2024
1,298
Industry payments
$1,703
Affiliated sites
1
Practice address
675 E Main St, Lake Butler, FL 32054
Practice phone
Call (386) 496-1328
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Lake Butler Medical Clinic Inc

Lake Butler, Florida

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Tammy Jean Williams is a family nurse practitioner in Lake Butler, Florida

Tammy Williams practices at Lake Butler Medical Clinic Inc in Lake Butler, Florida.

Tammy Williams' NPI, 1285877258, was assigned on April 7, 2009. Tammy Williams holds Florida license 2613912.

NPI and contact details
Medicare PAC ID
0749467959
NPI enumeration date
April 7, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(386) 496-1328
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
44
Medical school graduation
2008

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Tammy Jean Williams practices at Lake Butler Medical Clinic Inc in Lake Butler, Florida

Tammy Williams' primary practice is Lake Butler Medical Clinic Inc, at 675 E Main St, Lake Butler, FL 32054 in Union County. The practice phone is (386) 496-1328.

  • Lake Butler Medical Clinic Inc
    675 E Main St, Lake Butler, FL 32054 · Union CountyPhone(386) 496-1328

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Tammy Jean Williams is affiliated with 2 sites of care and 1 medical group

Tammy Williams' primary practice is Lake Butler Medical Clinic Inc in Lake Butler, Florida. The medical group on file is Lake Butler Medical Clinic. Dmand AI also links Tammy Williams to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Tammy Williams

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Tammy Jean Williams' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Tammy Williams practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Lake Butler Medical Clinic IncAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Tammy Jean Williams is one of 14,175 family nurse practitioners in Florida

Family is Tammy Williams' primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Tammy Williams is licensed in Florida.

Specialties and state licenses

  • Family nurse practitioner, FloridaPrimaryLicense 2613912 · taxonomy 363LF0000X

Clinical focus

Dmand AI lists chronic obstructive pulmonary disease (COPD), high cholesterol, tobacco use and underactive thyroid among the conditions Tammy Williams treats.

Family nurse practitioners near Tammy Williams

Counts of family nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.

14,175family nurse practitioners in Florida
6family nurse practitioners in Lake Butler

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Tammy Jean Williams billed Medicare for 46 services in 2024

CMS data shows 46 Medicare services from Tammy Williams across 2 procedure codes in 2024, all of them office visits, for 42 Medicare patients. Medicare paid $3,316 for them. Every service was in an office.

Medicare services, 202446
Medicare patients42
Paid by Medicare$3,316
Procedure codes2

Tammy Williams compared with the Florida median for family nurse practitioners, 2024

  • Tammy Williams
  • Florida median
Medicare services
46vs 30885% below
Medicare patients
42vs 11563% below
Part D claims
800vs 52552% above

Medians across 8,146 family nurse practitioners in Florida with Dmand AI profiles that report each measure.

Tammy Williams' most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Tammy Williams

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Tammy Jean Williams treated 42 Medicare patients in 2024, average age 74

CMS counts 42 Medicare patients who saw Tammy Williams in 2024. The largest group is 65 to 74, with 23 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.17, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Tammy Williams' median patient age at 70, with 61% women.

Medicare patients, 202442
Average age74
Average risk score1.17

Tammy Williams' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Tammy Williams' Medicare patients by sex, 2024

  • Women2355%
  • Men1945%

Chronic conditions among Tammy Williams' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Chronic kidney disease60%
  4. Diabetes36%
  5. Arthritis33%
  6. Heart failure31%
  7. Ischemic heart disease31%

Share of Medicare patients with each condition. A patient can have several.

Tammy Williams' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women61%
  • Men39%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Tammy Jean Williams wrote 1,298 Medicare Part D claims in 2024

In 2024, Tammy Williams wrote 1,298 Medicare Part D claims for 302 patients. 90% of them were for generic drugs. CMS names the drug for 800 of them, across 32 drugs with 11 or more claims each, at $34,737 in total drug cost.

Part D claims, 20241,298
Drugs named by CMS32
Total drug cost$34,737
Part D patients302

Tammy Williams' Part D claims by kind of drug, 2024

  • Generic1,165 claims90%
  • Brand-name and other133 claims10%

Tammy Williams' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Tammy Williams' Part D claims, 2024

  • Opioids1%15 of 1,298 claims
  • Antibiotics4%52 of 1,298 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Tammy Williams

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Tammy Jean Williams takes part in Medicare

Tammy Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

For MedTech and pharma teams

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Tammy Jean Williams received $1,703 in industry payments from 2024 to 2025

CMS Open Payments shows 74 general payments to Tammy Williams from 18 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $343.

General payments to Tammy Williams by program year, 2024 to 2025

Companies that paid Tammy Williams the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Tammy Williams

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Tammy Jean Williams's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Tammy Jean Williams

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Tammy Jean Williams' NPI number?

Tammy Jean Williams' NPI number is 1285877258. It was assigned on April 7, 2009, and it is active in the NPI Registry.

What does Tammy Jean Williams specialize in?

Tammy Jean Williams is a family nurse practitioner in Lake Butler, Florida. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).

Where does Tammy Jean Williams practice?

Tammy Williams practices at 675 E Main St, Lake Butler, FL 32054. Tammy Williams' primary practice is Lake Butler Medical Clinic Inc in Lake Butler, Florida. Dmand AI also links Tammy Williams to 1 group practice or clinic.

What is Tammy Jean Williams' office phone number?

The practice phone on file for Tammy Williams is (386) 496-1328.

What is Tammy Jean Williams' medical license number?

Tammy Williams holds Florida license 2613912.

What medical group is Tammy Jean Williams part of?

Tammy Williams is linked to Lake Butler Medical Clinic.

Does Tammy Jean Williams accept Medicare?

Yes. CMS data shows Tammy Williams billed Medicare for 46 services in 2024, and Tammy Williams accepts Medicare assignment.

How many Medicare patients does Tammy Jean Williams see?

CMS counts 42 Medicare patients who saw Tammy Williams in 2024, with an average age of 74.

What services does Tammy Jean Williams bill to Medicare?

In 2024, Tammy Williams' most billed Medicare services were office visit, established patient (99214) and office visit, established patient (99213).

What drugs does Tammy Jean Williams prescribe most?

In 2024 Medicare Part D data, Tammy Williams' most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Lisinopril.

Has Tammy Jean Williams received payments from drug or device companies?

CMS Open Payments shows $1,703 in general payments to Tammy Williams from 18 companies from 2024 to 2025. The largest total came from Gilead Sciences, Inc.

How long has Tammy Jean Williams been practicing?

Tammy Williams graduated from medical school in 2008, 18 years ago.

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