NPPES file of Aug 9, 2026

Shannon L. Garrison, CRNA

Certified Registered Nurse Anesthetist · Warrenton, VA

Shannon L. Garrison, CRNA is a certified registered nurse anesthetist with a practice address in Warrenton, Virginia, and NPI 1326317660, issued on Dec 15, 2011. Check the license (Virginia 0024169896, 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
1326317660
Name
Shannon L. Garrison
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
0024169896 VA
Self-reported in NPPES; status is on the state search
Practice location
500 Hospital Dr, Warrenton, VA 20186
Phone
(540) 316-5730
Enumerated
Dec 15, 2011
Record last updated
Mar 20, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(540) 316-5701
Medicaid IDs
1366450173 VA
1326317660 VA
Medicare enrollment
Enrolled (PECOS I20120514000321); accepts Medicare assignment
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 500 Hospital Dr

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

  1. Khawaja Ahmed, M.D.Hospitalist Physician1437360542
  2. Zohayr Alshaial, M.D.Internal Medicine Physician1841245537
  3. Arij Azhar, MDCritical Care Medicine (Internal Medicine) Physician1811493299
  4. William Barker, MDEmergency Medical Services (Emergency Medicine) Physician1770599847
  5. Jennifer Benjamin, PAMedical Physician Assistant1639183593
  6. Melissa Braun, NPNeonatal Nurse Practitioner1023365335

Verify Shannon L. Garrison 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 0024169896
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 84.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score88.3
  2. Costout of 100 · 30%69.5
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $75.89

4 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 24,076 providers of this specialty with any payment received $135.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Shannon Garrison$75.89
  2. Specialty average$135.08

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

Bills Medicare through 2 group practices

  1. Mary Washington Healthcare Specialty Services, LLCFredericksburg, VA
  2. Medstream Anesthesia PLLCWarrenton, VA

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

Shannon L. Garrison among 2,122 certified registered nurse anesthetist records in Virginia

Shannon L. Garrison, CRNA is one of 2,122 certified registered nurse anesthetist records with a practice address in Virginia. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 48% of them.

  • NPI issued2011 · 48% of these records are older, 48% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2011 · median 2014 among the 1,557 with a school on file
  • Record last updated2015 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 certified registered nurse anesthetist records list a practice address in Warrenton

They are 9 of the 592 NPPES records with a practice address in Warrenton, and 2,122 certified registered nurse anesthetist records in Virginia.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Rosemary Digiacomo, CRNAWarrenton, VA 201861760560932
  2. Tara Hancock, CRNAWarrenton, VA 201861912930090
  3. Linda Land, CRNAWarrenton, VA 201861659466688
  4. Melissa Lucas, CRNAWarrenton, VA 201861952496135
  5. Drew Pinilla, CRNAWarrenton, VA 201861770543662
  6. Sanam Sikhrakar, CRNAWarrenton, VA 201861205550134
  7. Alison Turner, CRNAWarrenton, VA 201861942311048
  8. Clayton Voigt, CRNAWarrenton, VA 201861215021282

Common questions

What is Shannon L. Garrison, CRNA's NPI number?

Shannon L. Garrison, CRNA's National Provider Identifier (NPI) is 1326317660, issued on Dec 15, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Shannon L. Garrison, CRNA located?

The NPPES record lists a practice address at 500 Hospital Dr, Warrenton, VA, 20186. Phone: (540) 316-5730. Providers update this record themselves, so call before visiting.

How can I verify Shannon L. Garrison, CRNA's license?

NPPES lists Virginia license number 0024169896, as entered by the provider. Search the Virginia board that licenses this profession; the NPPES record confirms identity only.

What is Shannon L. Garrison, CRNA's MIPS final score?

The 2023 MIPS final score is 84.4 of 100, reported for the practice group. 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.