NPI registry status
Active
2026 NPPES data Surgical Physician Assistant NPI 1669418174 PA-C
Verify on CMS → Tracy Knaak, PA-C
Surgical Physician Assistant in Suffolk, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,179 in Surgical Physician Assistant, 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
85
Medicare Part D claims · 54 beneficiaries · Surgical Physician Assistant avg: 316
MIPS score
95.1/100
▲ 12 pts above national avg 83.1 · Exceptional
Industry payments
$175.36
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Tracy Knaak, PA-C reported a CMS MIPS final score of 95.1/100 - above the 83.1 national average - and filed 85 Medicare Part D claims in 2023.
- 95.1/100
- MIPS score · +12 vs avg
- 85
- Part D claims, 2023
- $175.36
- 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.
Tracy Knaak, PA-C's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
95 Top 21% higher than 79% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Tracy Knaak, PA-C sits
This provider among surgical physician assistant peers
Across the 3,708 surgical physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Tracy Knaak, PA-C writes more Part D claims than 35% of them and scores higher on MIPS quality than 80% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one surgical physician assistant peer from a representative sample of 60; the gold marker is Tracy Knaak, PA-C. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Tracy Knaak, PA-C?
High performer (top quartile)Primary specialty
Surgical Physician Assistant
Medicare Part D claims
85 73% vs specialty avg
MIPS final score
95.1/100 12 pts vs avg
Specialty distribution in Virginia
How Surgical Physician Assistant compares to other specialties among Virginia providers
Medicare quality performance, MIPS
Tracy Knaak, PA-C's 2023 MIPS final score plotted against the Surgical Physician Assistant national average
- MIPS Final Score
- 95.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Surgical Physician Assistant) - 95.1/100 vs national avg 83.1
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).
Tracy Knaak, PA-C appears in the CMS NPPES registry as a Surgical Physician Assistant provider holding PA-C credentials at 5818 HARBOUR VIEW BLVD STE 240, Suffolk, VA, 23435, with a listed phone of (757) 397-2383. NPI 1669418174 was issued on 06/22/2006.
Medicare Part D records for calendar year 2023 show 85 prescription claims written by this provider, covering 54 Medicare beneficiaries and totaling roughly $3K in drug spend, with an opioid prescribing rate of 23.5%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 95.1/100 for the 2023 performance year (Quality 86.3), compared with the national average of 83.1.
Surgical Physician Assistant is a mid-sized specialty nationwide, with 16,179 enrolled providers across 54 states and an average of 316 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 | 1669418174 |
|---|---|
| Specialty | Surgical Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 06/22/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
95.1126
Final Score
Avg: 83.1
86.3184
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Tracy Knaak, PA-C 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.
Evms Academic Physicians And Surgeons Health Services Foundation
Norfolk, VA
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 Tracy Knaak, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$175
Largest payer
Integra LifeSciences Corporation
Most common payment type
Long term medical supply or device loan
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
85
Total Claims
$3K
Total Drug Cost
54
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 112
- Total Day Supply
- 2,174
- Generic Drug Cost
- $2K
- Opioid Claims
- 20 (23.5% rate)
Patient Demographics
- Average Patient Age
- 69.1 years
- Avg HCC Risk Score
- 1.56
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 15, 65-74: 27, 75-84: N/A, 85+: N/A
Surgical Physician Assistant Overview
How Tracy Knaak, PA-C fits within the Surgical Physician Assistant landscape nationally.
16,179
Surgical Physician Assistant Providers in US
54
States with Surgical Physician Assistant
316
Avg Claims per Provider
Tracy Knaak, PA-C's 85 claims are below the specialty average of 316.
Nearby Surgical Physician Assistant Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Knaak.
Leonard Abadam
Quantico, VA
Dr. Alan Abrams
PA-C
Hampton, VA
Dr. Kathryn Adams
PA-C
Woodbridge, VA
Rebecca Adams
Roanoke, VA
Dr. Jamel Akrout
M.D.
Falls Church, VA
Compare Surgical Physician Assistant 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 Virginia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Surgical Physician Assistant 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Virginia
Frequently Asked Questions
What is Tracy Knaak, PA-C's specialty? ▼
Tracy Knaak, PA-C specializes in Surgical Physician Assistant and practices in Suffolk, Virginia. Credentials: PA-C.
How much does Tracy Knaak, PA-C prescribe under Medicare Part D? ▼
In 2023, Tracy Knaak, PA-C wrote 85 Medicare Part D claims totaling $3K in drug costs for 54 beneficiaries.
What is Tracy Knaak, PA-C's Medicare quality score? ▼
Tracy Knaak, PA-C has a CMS MIPS Final Score of 95.1/100 (Quality: 86.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Tracy Knaak, PA-C located? ▼
Tracy Knaak, PA-C is located at 5818 HARBOUR VIEW BLVD STE 240, Suffolk, VA, 23435. Phone: (757) 397-2383.
What is Tracy Knaak, PA-C's NPI number? ▼
Tracy Knaak, PA-C's National Provider Identifier (NPI) is 1669418174, issued on 06/22/2006.
Does Tracy Knaak, PA-C prescribe opioids? ▼
Yes, Tracy Knaak, PA-C had 20 opioid claims in 2023 with an opioid prescribing rate of 23.5%.
How many Surgical Physician Assistant providers are there in the US? ▼
There are 16,179 Surgical Physician Assistant providers across 54 states in the US. The average Surgical Physician Assistant provider writes 316 Medicare Part D claims per year.
Does Tracy Knaak, PA-C accept Medicare? ▼
Tracy Knaak, PA-C appears in CMS Medicare data with 85 Part D claims and 54 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tracy Knaak, PA-C's credentials? ▼
Tracy Knaak, PA-C's NPI is 1669418174 with credentials PA-C. 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.
- 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
Compiled from official public sources by the PlainDoctor editorial team.
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.