NPPES file of Aug 9, 2026

James B. Mersing, M.D.

Family Medicine Physician · Reedsville, WV

James B. Mersing, M.D. is a family medicine physician with a practice address in Reedsville, West Virginia, and NPI 1003250515, issued on Apr 26, 2013. Check the license (West Virginia 26487, as entered in NPPES) on the West Virginia Board of Medicine; 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
1003250515
Name
James B. Mersing
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
26487 WV
Self-reported in NPPES; status is on the state search
Practice location
West Preston Primary Care, 14 Comfort Dr, Reedsville, WV 26547
Phone
(304) 864-0006
Enumerated
Apr 26, 2013
Record last updated
Jul 21, 2025
Fax
(304) 864-0015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify James B. Mersing in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWest Virginia Board of Medicine
    Search for license 26487
    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
Open the West Virginia license search

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88% fewer Medicare Part D claims than the average family medicine physician in 2024

431 Medicare Part D claims for 97 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. James Mersing431
  2. Specialty average3,544

Most prescribed

  1. Lisinopril23 claims
  2. Metoprolol Succinate22 claims
  3. Atorvastatin Calcium19 claims
  4. Omeprazole19 claims
  5. Losartan Potassium16 claims
  6. Montelukast Sodium14 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): 94.1 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 score78.5
  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: $34.26

1 payment: food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Mersing$34.26
  2. Specialty average$902.55

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

James B. Mersing among 1,122 family medicine physician records in West Virginia

James B. Mersing, M.D. is one of 1,122 family medicine physician records with a practice address in West Virginia. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 73% of them.

  • NPI issued2013 · 73% of these records are older, 24% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2025 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a West Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 family medicine physician records list a practice address in Reedsville

They are 2 of the 61 NPPES records with a practice address in Reedsville, and 1,122 family medicine physician records in West Virginia.

The 8 family medicine physician records with the nearest ZIP codes

  1. Jason Statler, MDReedsville, WV 265471083009245
  2. Albert Mays, D.O.Masontown, WV 265421861786568
  3. Vicky Mays, D.O.Masontown, WV 265421710142278
  4. Gabrielle Sakellarides, D.O.Maidsville, WV 265411942644281
  5. Frederick Alcantara, M.D.Fairmont, WV 265541942493812
  6. Marilyn Bonfili, MDFairmont, WV 265541699775247
  7. Candace Chidester, MDFairmont, WV 265541225198724
  8. Lisa Flower, MDFairmont, WV 265541659394922

Common questions

What is James B. Mersing, M.D.'s NPI number?

James B. Mersing, M.D.'s National Provider Identifier (NPI) is 1003250515, issued on Apr 26, 2013. An NPI identifies a provider in billing; it is not a license.

Where is James B. Mersing, M.D. located?

The NPPES record lists a practice address at West Preston Primary Care, 14 Comfort Dr, Reedsville, WV, 26547. Phone: (304) 864-0006. Providers update this record themselves, so call before visiting.

How can I verify James B. Mersing, M.D.'s license?

NPPES lists West Virginia license number 26487, as entered by the provider. Search the West Virginia Board of Medicine at https://wvbom.wv.gov/public/search/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does James B. Mersing, M.D. prescribe under Medicare Part D?

In 2024, James B. Mersing, M.D. had 431 Medicare Part D claims for 97 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is James B. Mersing, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.1 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.