NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1598383861 APRN
Verify on CMS → Amber Tolliver, APRN
Nurse Practitioner in Nashville, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 87,700 in 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.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
4K
Medicare Part D claims · 171 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
83%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$144.66
8 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Amber Tolliver, APRN filed 4,180 Medicare Part D claims in 2023 as a Nurse Practitioner in Nashville, Tennessee, prescribing 83% generic.
- 4K
- Part D claims, 2023
- 83%
- generic prescribing
- $144.66
- 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.
Amber Tolliver, APRN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,180 Top 8% higher than 92% 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 Amber Tolliver, APRN?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
4,180 286% vs specialty avg
Specialty distribution in Tennessee
How Nurse Practitioner compares to other specialties among Tennessee providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Nurse Practitioner. Verify directly:
How MIPS and board certification work
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).
Amber Tolliver, APRN appears in the CMS NPPES registry as a Nurse Practitioner provider holding APRN credentials at 3200 W END AVE, Nashville, TN, 37203, with a listed phone of (866) 849-0692. NPI 1598383861 was issued on 07/13/2020.
Medicare Part D records for calendar year 2023 show 4,180 prescription claims written by this provider, covering 171 Medicare beneficiaries and totaling roughly $427K in drug spend, split 16% brand-name and 83% generic by claim count, with an opioid prescribing rate of 2.8%.
Nurse Practitioner is a high-volume specialty nationwide, with 87,700 enrolled providers across 56 states and an average of 1,084 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 | 1598383861 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | APRN |
| Gender | Female |
| NPI Issued | 07/13/2020 |
Hospital and facility affiliations
Facilities where Amber Tolliver, APRN 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.
Arh Mary Breckinridge Health Services Inc
Middlesboro, KY
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 Amber Tolliver, APRN. Source: openpaymentsdata.cms.gov.
Total received
$145
Largest payer
Pacira Pharmaceuticals Incorporated
Most common payment type
Food and Beverage
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.
Brand vs generic prescribing mix · Typical
Amber Tolliver, APRN - brand share 16.0%
Nurse Practitioner average
16% brand-name claims vs 83% generic, on 4,180 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.
4,180
Total Claims
$427K
Total Drug Cost
171
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,395
- Total Day Supply
- 210,542
- Brand vs Generic
- 16% brand / 83% generic
- Brand Drug Cost
- $358K
- Generic Drug Cost
- $67K
- Opioid Claims
- 118 (2.8% rate)
- Antibiotic Claims
- 148
Patient Demographics
- Average Patient Age
- 72.0 years
- Avg HCC Risk Score
- 1.31
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 31, 65-74: 76, 75-84: 49, 85+: 15
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Amber Tolliver, APRN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lisinopril
Lisinopril
131 claims
- Atorvastatin Calcium
Atorvastatin Calcium
121 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
108 claims
- Eliquis
Eliquis
107 claims
- Amlodipine Besylate
Amlodipine Besylate
106 claims
- Hydrochlorothiazide
Hydrochlorothiazide
102 claims
- Levothyroxine Sodium
Levothyroxine Sodium
102 claims
- Pantoprazole Sodium
Pantoprazole Sodium
96 claims
| Drug | Claims |
|---|---|
| Lisinopril | 131 |
| Atorvastatin Calcium | 121 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 108 |
| Eliquis Apixaban | 107 |
| Amlodipine Besylate | 106 |
| Hydrochlorothiazide | 102 |
| Levothyroxine Sodium | 102 |
| Pantoprazole Sodium | 96 |
| Rosuvastatin Calcium | 93 |
| Furosemide | 85 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Amber Tolliver, APRN fits within the Nurse Practitioner landscape nationally.
87,700
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Amber Tolliver, APRN's 4,180 claims are above the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Tolliver.
Dr. Rochelle Aaser
APRN
Knoxville, TN
Dr. Hibo Abdi
APRN
Nashville, TN
Dr. Amed Abdullah
FNP-C
Nashville, TN
Dr. Dilmon Abdullah
NP
Antioch, TN
Dr. Tracie Abel
NP
Germantown, TN
Compare 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 Tennessee medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby 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
What is Amber Tolliver, APRN's specialty? ▼
Amber Tolliver, APRN specializes in Nurse Practitioner and practices in Nashville, Tennessee. Credentials: APRN.
How much does Amber Tolliver, APRN prescribe under Medicare Part D? ▼
In 2023, Amber Tolliver, APRN wrote 4,180 Medicare Part D claims totaling $427K in drug costs for 171 beneficiaries.
Where is Amber Tolliver, APRN located? ▼
Amber Tolliver, APRN is located at 3200 W END AVE, Nashville, TN, 37203. Phone: (866) 849-0692.
What is Amber Tolliver, APRN's NPI number? ▼
Amber Tolliver, APRN's National Provider Identifier (NPI) is 1598383861, issued on 07/13/2020.
Does Amber Tolliver, APRN prescribe more brand-name or generic drugs? ▼
Amber Tolliver, APRN's prescribing is 16% brand-name and 83% generic drugs by claim count, with $358K in brand drug costs.
Does Amber Tolliver, APRN prescribe opioids? ▼
Yes, Amber Tolliver, APRN had 118 opioid claims in 2023 with an opioid prescribing rate of 2.8%.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,700 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Amber Tolliver, APRN prescribe most often? ▼
Based on 2023 Medicare Part D data, Amber Tolliver, APRN's most frequently prescribed drugs include Lisinopril, Atorvastatin Calcium, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Amber Tolliver, APRN accept Medicare? ▼
Amber Tolliver, APRN appears in CMS Medicare data with 4,180 Part D claims and 171 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Amber Tolliver, APRN's credentials? ▼
Amber Tolliver, APRN's NPI is 1598383861 with credentials APRN. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.