TAMMI FERGUSON, FNP
Family Nurse Practitioner in BOLIVAR, Tennessee. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
TAMMI FERGUSON, FNP filed 12,704 Medicare Part D claims in 2023 as a Family Nurse Practitioner in BOLIVAR, Tennessee, prescribing 89% generic.
- 13K
- Part D claims, 2023
- 89%
- generic prescribing
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.
TAMMI FERGUSON, FNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
12,704 Top 2% higher than 98% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about TAMMI FERGUSON, FNP?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in Tennessee
How Family Nurse Practitioner compares to other specialties among Tennessee providers
Family Nurse Practitioner share within Tennessee
Family Nurse Practitioner is one of the more visible NUCC categories in Tennessee
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Family Nurse Practitioner (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Family Nurse Practitioner ABMS/AOA estimate
Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Family Nurse Practitioner US NPIs
Specialty board-certified rate — Family Nurse Practitioner estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
TAMMI FERGUSON, FNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP credentials at 1700 W MARKET ST, BOLIVAR, TN, 38008, with a listed phone of (731) 652-5772. NPI 1023066057 was issued on 05/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FERGUSON 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 12,704 prescription claims written by this provider, covering 540 Medicare beneficiaries and totaling roughly $881K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 8.5%. 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.
Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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 | 1023066057 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | FNP |
| Gender | Female |
| NPI Issued | 05/04/2006 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm TAMMI FERGUSON, FNP's current license status, disciplinary history, and board certifications with the Tennessee Board of Medical Examiners in Tennessee before relying on this page for a clinical or care decision.
How we sourced this profile
Brand vs generic prescribing mix · Typical
11% brand-name claims vs 89% generic, on 12,704 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 20,286
- Total Day Supply
- 570,143
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $676K
- Generic Drug Cost
- $204K
- Opioid Claims
- 1,083 (8.5% rate)
- Antibiotic Claims
- 507
Patient Demographics
- Average Patient Age
- 69.3 years
- Avg HCC Risk Score
- 1.36
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 143, 65-74: 230, 75-84: 131, 85+: 36
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What TAMMI FERGUSON, FNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
865 claims
- Gabapentin
Gabapentin
600 claims
- Amlodipine Besylate
Amlodipine Besylate
417 claims
- Atorvastatin Calcium 325
Atorvastatin Calcium
325 claims
- Omeprazole 298
Omeprazole
298 claims
- Famotidine 281
Famotidine
281 claims
- Potassium Chloride 269
Potassium Chloride
269 claims
- Levocetirizine Dih… 260
Levocetirizine Dihydrochloride
260 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 865 |
| Gabapentin | 600 |
| Amlodipine Besylate | 417 |
| Atorvastatin Calcium | 325 |
| Omeprazole | 298 |
| Famotidine | 281 |
| Potassium Chloride | 269 |
| Levocetirizine Dihydrochloride | 260 |
| Levothyroxine Sodium | 246 |
| Furosemide | 242 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How TAMMI FERGUSON, FNP fits within the Family Nurse Practitioner landscape nationally.
TAMMI FERGUSON, FNP's 12,704 claims are above the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as FERGUSON.
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
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Frequently Asked Questions
What is TAMMI FERGUSON, FNP's specialty? ▼
How much does TAMMI FERGUSON, FNP prescribe under Medicare Part D? ▼
Where is TAMMI FERGUSON, FNP located? ▼
What is TAMMI FERGUSON, FNP's NPI number? ▼
Does TAMMI FERGUSON, FNP prescribe more brand-name or generic drugs? ▼
Does TAMMI FERGUSON, FNP prescribe opioids? ▼
How many Family Nurse Practitioner providers are there in the US? ▼
What drugs does TAMMI FERGUSON, FNP prescribe most often? ▼
Does TAMMI FERGUSON, FNP accept Medicare? ▼
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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.
- 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