2026 NPPES data Anesthesiologist Assistant NPI 1821549247 C-AA
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ELIZABETH RIVERA, C-AA

Anesthesiologist Assistant in LOUISVILLE, Kentucky. 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.
MIPS score
86.3281/100
▲ 3 pts above national avg 83.1 · [object Object]
Industry payments
$41.46
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ELIZABETH RIVERA, C-AA is a Anesthesiologist Assistant ([object Object]) practicing in LOUISVILLE, Kentucky . Their CMS MIPS Final Score of 86.3281/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $41.46 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ELIZABETH RIVERA, C-AA reported a CMS MIPS final score of 86.3281 out of 100, above the 83.1 national average. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ELIZABETH RIVERA, C-AA at a glance

High performer (top quartile)

NPI registry status

Active

Issued 10/20/2016

NPI 1821549247

Primary specialty

Anesthesiologist Assistant

Niche

4,441 US NPIs in this specialty

MIPS final score

86.3281/100 3.228100000000012% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Kentucky

How Anesthesiologist Assistant compares to other specialties among Kentucky providers

Kentucky providers

Anesthesiologist Assistant share within Kentucky

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

Medicare quality performance — MIPS

ELIZABETH RIVERA, C-AA's 2023 MIPS final score plotted against the Anesthesiologist Assistant national average

High performer (top quartile)
MIPS Final Score
86.3281/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Anesthesiologist Assistant) — 86.3281/100 vs national avg 83.1

0%100%National avg83%86.3%
MIPS final score (Anesthesiologist Assistant) — 86.3281/100 vs national avg 83.1

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).

ELIZABETH RIVERA, C-AA is a Anesthesiologist Assistant provider practicing in LOUISVILLE, Kentucky, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: C-AA. NPI: 1821549247. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ELIZABETH RIVERA, C-AA appears in the CMS NPPES registry as a Anesthesiologist Assistant provider holding C-AA credentials at 320 WHITTINGTON PKWY STE 301, LOUISVILLE, KY, 40222, with a listed phone of (502) 625-5584. NPI 1821549247 was issued on 10/20/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RIVERA 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Anesthesiologist Assistant providers operate outside Part D entirely. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.3281/100 for the 2023 performance year (Quality 83.9154), compared with the national average of 83.1.

Anesthesiologist Assistant is a narrow specialty nationwide, with 4,441 enrolled providers across 41 states and an average of 314 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

320 WHITTINGTON PKWY STE 301
LOUISVILLE, KY 40222

Provider Details

NPI 1821549247
Specialty Anesthesiologist Assistant
Credentials C-AA
Gender Female
NPI Issued 10/20/2016

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

86.3281
Final Score
Avg: 83.1
83.9154
Quality

Reporting: Group practice

Hospital and facility affiliations

Facilities where ELIZABETH RIVERA, C-AA 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.

ASSOCIATED ANESTHESIOLOGISTS OF FORT WAYNE PC
AUBURN, IN

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 ELIZABETH RIVERA, C-AA. Source: openpaymentsdata.cms.gov.

Total received

$41

Largest payer

ATRICURE, INC.

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.

Anesthesiologist Assistant Overview

How ELIZABETH RIVERA, C-AA fits within the Anesthesiologist Assistant landscape nationally.

4,441
Anesthesiologist Assistant Providers in US
41
States with Anesthesiologist Assistant
314
Avg Claims per Provider

Nearby Anesthesiologist Assistant Providers in Kentucky

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

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

Frequently Asked Questions

What is ELIZABETH RIVERA, C-AA's specialty?
ELIZABETH RIVERA, C-AA specializes in Anesthesiologist Assistant and practices in LOUISVILLE, Kentucky. Credentials: C-AA.
What is ELIZABETH RIVERA, C-AA's Medicare quality score?
ELIZABETH RIVERA, C-AA has a CMS MIPS Final Score of 86.3281/100 (Quality: 83.9154). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ELIZABETH RIVERA, C-AA located?
ELIZABETH RIVERA, C-AA is located at 320 WHITTINGTON PKWY STE 301, LOUISVILLE, KY, 40222. Phone: (502) 625-5584.
What is ELIZABETH RIVERA, C-AA's NPI number?
ELIZABETH RIVERA, C-AA's National Provider Identifier (NPI) is 1821549247, issued on 10/20/2016.
How many Anesthesiologist Assistant providers are there in the US?
There are 4,441 Anesthesiologist Assistant providers across 41 states in the US. The average Anesthesiologist Assistant provider writes 314 Medicare Part D claims per year.
Does ELIZABETH RIVERA, C-AA accept Medicare?
ELIZABETH RIVERA, C-AA appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELIZABETH RIVERA, C-AA's credentials?
ELIZABETH RIVERA, C-AA's NPI is 1821549247 with credentials C-AA. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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