NPPES file of Aug 9, 2026

John Mason Erwin, CRNA

Certified Registered Nurse Anesthetist · Martinsburg, WV

John Mason Erwin, CRNA is a certified registered nurse anesthetist with a practice address in Martinsburg, West Virginia, and NPI 1386980969, issued on Dec 30, 2012. Check the license with the West 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
1386980969
Name
John Mason Erwin
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
R181627 MD
Self-reported in NPPES; status is on the state search
Practice location
1006 Tavern RD, Martinsburg, WV 25401
Phone
(304) 267-0556
Enumerated
Dec 30, 2012
Record last updated
Mar 9, 2023
Fax
(304) 267-1460
Medicare enrollment
Enrolled (PECOS I20140729002027); 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 1006 Tavern RD

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

  1. Mercedes Dockeney, CRNACertified Registered Nurse Anesthetist1457476624
  2. Thomas Downey, CRNACertified Registered Nurse Anesthetist1750377263
  3. Lindsey Evers, CRNACertified Registered Nurse Anesthetist1518323070
  4. Duong Ly, MDAnesthesiology Physician1124032917
  5. John McGuire, CRNAAnesthesiology Physician1841346954

Verify John Mason Erwin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich West Virginia board licenses this professionCheck 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 West Virginia license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 66 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 score60.1
  2. Costnot scored (reweighted)
  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: $46.42

2 payments; by number, the most common kind was food and beverage; the largest payer was Pacira Pharmaceuticals Incorporated. 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. John Erwin$46.42
  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. City Hospital IncMartinsburg, WV
  2. Meritus Medical Center IncHagerstown, MD

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

John Mason Erwin among 790 certified registered nurse anesthetist records in West Virginia

John Mason Erwin, CRNA is one of 790 certified registered nurse anesthetist records with a practice address in West 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 2012, is newer than 57% of them.

  • NPI issued2012 · 57% of these records are older, 41% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2012 · median 2012 among the 601 with a school on file
  • Record last updated2023 · 60% 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 West Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Certified Registered Nurse Anesthetist providers in West Virginia

There are 790 certified registered nurse anesthetist records in West Virginia.

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

  1. Donovan Bregg, CRNAMartinsburg, WV 254011619413531
  2. Christine Cleaves, CRNAMartinsburg, WV 254011649364159
  3. Gregory Cresswell, CRNAMartinsburg, WV 254011710547187
  4. Mercedes Dockeney, CRNAMartinsburg, WV 254011457476624
  5. Thomas Downey, CRNAMartinsburg, WV 254011750377263
  6. Lindsey Evers, CRNAMartinsburg, WV 254011518323070
  7. Donna Helmick, CRNAMartinsburg, WV 254011841616257
  8. Boaz Leung, CRNAMartinsburg, WV 254011770520967

Common questions

What is John Mason Erwin, CRNA's NPI number?

John Mason Erwin, CRNA's National Provider Identifier (NPI) is 1386980969, issued on Dec 30, 2012. An NPI identifies a provider in billing; it is not a license.

Where is John Mason Erwin, CRNA located?

The NPPES record lists a practice address at 1006 Tavern RD, Martinsburg, WV, 25401. Phone: (304) 267-0556. Providers update this record themselves, so call before visiting.

How can I verify John Mason Erwin, CRNA's license?

Search the West Virginia board that licenses this profession; the NPPES record confirms identity only.

What is John Mason Erwin, CRNA's MIPS final score?

The 2023 MIPS final score is 66 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.