Meredith Jo Mason, MD
Emergency Medicine Physician · Marietta, OH
Meredith Jo Mason, MD is an emergency medicine physician with a practice address in Marietta, Ohio, and NPI 1457663791, issued on Jul 1, 2010. Check the license (Ohio 350123041, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Meredith Jo Mason
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 350123041 OH
24808 WV
Self-reported in NPPES; status is on the state search - Practice location
- 401 Matthew St, Marietta, OH 45750
- Phone
- (740) 376-1939
- Enumerated
- Jul 1, 2010
- Record last updated
- Nov 12, 2025
- Fax
- (740) 374-1693
- Medicare enrollment
- Enrolled (PECOS I20140522001528); accepts Medicare assignment
- Medical or professional school
- West Virginia University School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,002 in Ohio → Look up another NPI →
Also registered at 401 Matthew St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Corey Alley, MDInternal Medicine Physician1366020968
- Shannon Altazan, DOEmergency Medicine Physician1477057883
- Megan Amos, CRNACertified Registered Nurse Anesthetist1801380084
- Michael Archer, DOEmergency Medicine Physician1982349288
Verify Meredith Jo Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 350123041Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% more Medicare Part D claims than the average emergency medicine physician in 2024
262 Medicare Part D claims for 154 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 13 claims were for opioids.
Most prescribed
- Cephalexin30 claims
- Ondansetron Odt30 claims
- Prednisone26 claims
- Albuterol Sulfate Hfa14 claims
- Hydrocodone-Acetaminophen11 claims
- Methocarbamol11 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.
Industry payments in 2024: $18.30
1 payment: food and beverage; the largest payer was Abbvie Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Marietta Memorial HospitalMarietta, OH · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Meredith Jo Mason among 3,002 emergency medicine physician records in Ohio
Meredith Jo Mason, MD is one of 3,002 emergency medicine physician records with a practice address in Ohio. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 51% of them.
- NPI issued2010 · 51% of these records are older, 47% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2010 · median 2013 among the 1,720 with a school on file
- Record last updated2025 · 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 207P00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
56 emergency medicine physician records list a practice address in Marietta
They are 56 of the 1,141 NPPES records with a practice address in Marietta, and 3,002 emergency medicine physician records in Ohio.
All 3,002 in Ohio → Every provider in Marietta → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Linette Archer, MDMarietta, OH 457501811913742
- Thomas Brandes, DOMarietta, OH 457501265446454
- Dan Breece, DOMarietta, OH 457501215916275
- Jalaj Chandna, MDMarietta, OH 457501710963947
- Carol Dawson, D.O.Marietta, OH 457501417959016
- Mario Estolano, MDMarietta, OH 457501881655546
- Gayle Galan, MDMarietta, OH 457501134133747
- Gary Gelesh, DOMarietta, OH 457501730169822
Common questions
What is Meredith Jo Mason, MD's NPI number?
Meredith Jo Mason, MD's National Provider Identifier (NPI) is 1457663791, issued on Jul 1, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Meredith Jo Mason, MD located?
The NPPES record lists a practice address at 401 Matthew St, Marietta, OH, 45750. Phone: (740) 376-1939. Providers update this record themselves, so call before visiting.
How can I verify Meredith Jo Mason, MD's license?
NPPES lists Ohio license number 350123041, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Meredith Jo Mason, MD prescribe under Medicare Part D?
In 2024, Meredith Jo Mason, MD had 262 Medicare Part D claims for 154 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
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.