2026 NPPES data Physician Assistant NPI 1346959574
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AMBER NIEMEYER

Physician Assistant in BRENTWOOD, Tennessee. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
137
Medicare Part D claims · 94 beneficiaries · Physician Assistant avg: 790
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

AMBER NIEMEYER filed 137 Medicare Part D claims in 2023 as a Physician Assistant in BRENTWOOD, Tennessee, prescribing 92% generic.

137
Part D claims, 2023
92%
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.

AMBER NIEMEYER's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

137 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 NIEMEYER?

Quality data not reported

NPI registry status

Active

Issued 11/16/2022

NPI 1346959574

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

137 83% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Tennessee

How Physician Assistant compares to other specialties among Tennessee providers

Tennessee providers

Physician Assistant share within Tennessee

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within Tennessee

Specialty board-certification context

Estimated specialty board-certified rate — Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

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 NIEMEYER appears in the CMS NPPES registry as a Physician Assistant provider at 641 OLD HICKORY BLVD UNIT 62, BRENTWOOD, TN, 37027, with a listed phone of (920) 979-0997. NPI 1346959574 was issued on 11/16/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NIEMEYER 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 137 prescription claims written by this provider, covering 94 Medicare beneficiaries and totaling roughly $2K in drug spend, split 8% brand-name and 92% generic by claim count. 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.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

641 OLD HICKORY BLVD UNIT 62
BRENTWOOD, TN 37027

Provider Details

NPI 1346959574
Specialty Physician Assistant
Gender Female
NPI Issued 11/16/2022

Brand vs generic prescribing mix · Generic-heavy

AMBER NIEMEYER — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 137 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.

137
Total Claims
$2K
Total Drug Cost
94
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
162
Total Day Supply
2,318
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$452
Generic Drug Cost
$2K
Antibiotic Claims
58

Patient Demographics

Average Patient Age
66.7 years
Avg HCC Risk Score
1.00
Gender Split
74% female / 26% male
Age Distribution
<65: 27, 65-74: 42, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
16
Azithromycin
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Physician Assistant Overview

How AMBER NIEMEYER fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

AMBER NIEMEYER's 137 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Tennessee

Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as NIEMEYER.

Compare Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is AMBER NIEMEYER's specialty?
AMBER NIEMEYER specializes in Physician Assistant and practices in BRENTWOOD, Tennessee.
How much does AMBER NIEMEYER prescribe under Medicare Part D?
In 2023, AMBER NIEMEYER wrote 137 Medicare Part D claims totaling $2K in drug costs for 94 beneficiaries.
Where is AMBER NIEMEYER located?
AMBER NIEMEYER is located at 641 OLD HICKORY BLVD UNIT 62, BRENTWOOD, TN, 37027. Phone: (920) 979-0997.
What is AMBER NIEMEYER's NPI number?
AMBER NIEMEYER's National Provider Identifier (NPI) is 1346959574, issued on 11/16/2022.
Does AMBER NIEMEYER prescribe more brand-name or generic drugs?
AMBER NIEMEYER's prescribing is 8% brand-name and 92% generic drugs by claim count, with $452 in brand drug costs.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does AMBER NIEMEYER prescribe most often?
Based on 2023 Medicare Part D data, AMBER NIEMEYER's most frequently prescribed drugs include Amoxicillin-Clavulanate Potass, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AMBER NIEMEYER accept Medicare?
AMBER NIEMEYER appears in CMS Medicare data with 137 Part D claims and 94 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AMBER NIEMEYER's credentials?
AMBER NIEMEYER's NPI is 1346959574. 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

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