NPPES file of Aug 9, 2026

Tracy L. Knaak, PA-C

Physician Assistant · Suffolk, VA

Tracy L. Knaak, PA-C is a physician assistant with a practice address in Suffolk, Virginia, and NPI 1669418174, issued on Jun 22, 2006. Check the license (Virginia 0110001540, as entered in NPPES) with the Virginia board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669418174
Name
Tracy L. Knaak
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
0110001540 VA
Self-reported in NPPES; status is on the state search
Practice location
5818 Harbour View Blvd Ste 240, Suffolk, VA 23435
Phone
(757) 397-2383
Enumerated
Jun 22, 2006
Record last updated
Jan 5, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(757) 673-0236
Medicare enrollment
Enrolled (PECOS I20070322000227); accepts Medicare assignment
Medical or professional school
Eastern Virginia Medical School, 2002
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5818 Harbour View Blvd Ste 240

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Raven Fulgham, FNP-CFamily Nurse Practitioner1598275687
  2. Christy Wild, PA-CPhysician Assistant1588810519

Verify Tracy L. Knaak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Virginia board licenses this profession
    Search for license 0110001540
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Virginia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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83% fewer Medicare Part D claims than the average physician assistant in 2024

143 Medicare Part D claims for 70 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 29 claims were for opioids.

  1. Tracy Knaak143
  2. Specialty average830

Most prescribed

  1. Oxycodone Hcl15 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 95.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $175.36

1 payment: long term medical supply or device loan; the largest payer was Integra LifeSciences Corporation. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tracy Knaak$175.36
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Evms Academic Physicians And Surgeons Health Services FoundationNorfolk, VA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tracy L. Knaak among 4,408 physician assistant records in Virginia

Tracy L. Knaak, PA-C is one of 4,408 physician assistant records with a practice address in Virginia. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 86% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2002 · median 2018 among the 2,885 with a school on file
  • Record last updated2021 · 33% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

57 physician assistant records list a practice address in Suffolk

They are 57 of the 1,438 NPPES records with a practice address in Suffolk, and 4,408 physician assistant records in Virginia.

The 8 physician assistant records with the nearest ZIP codes

  1. Brittani Bonner, PA-CSuffolk, VA 234351891034856
  2. David Cary, PASuffolk, VA 234351538151956
  3. Ashlee Hughes, MPA, PA-CSuffolk, VA 234351588002885
  4. Katherine Loose, PA-CSuffolk, VA 234351942614235
  5. April Lust, P.A.Suffolk, VA 234351013996222
  6. Anne Mishkofski, P.A.Suffolk, VA 234351891708715
  7. Todd Nolen, PA-CSuffolk, VA 234351952698730
  8. Michael Ratanataya, PA-CSuffolk, VA 234351336161538

Common questions

What is Tracy L. Knaak, PA-C's NPI number?

Tracy L. Knaak, PA-C's National Provider Identifier (NPI) is 1669418174, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tracy L. Knaak, PA-C located?

The NPPES record lists a practice address at 5818 Harbour View Blvd Ste 240, Suffolk, VA, 23435. Phone: (757) 397-2383. Providers update this record themselves, so call before visiting.

How can I verify Tracy L. Knaak, PA-C's license?

NPPES lists Virginia license number 0110001540, as entered by the provider. Search the Virginia board that licenses this profession; the NPPES record confirms identity only.

How much does Tracy L. Knaak, PA-C prescribe under Medicare Part D?

In 2024, Tracy L. Knaak, PA-C had 143 Medicare Part D claims for 70 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Tracy L. Knaak, PA-C's MIPS final score?

The 2023 MIPS final score is 95.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.