NPPES file of Aug 9, 2026

Rachel Marie Mast, D.O.

Internal Medicine Physician · Beavercreek, OH

Rachel Marie Mast, D.O. is an internal medicine physician with a practice address in Beavercreek, Ohio, and NPI 1952552812, issued on Oct 8, 2008. Check the license (Ohio 34010242, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1952552812
Name
Rachel Marie Mast
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
34010242 OH
Self-reported in NPPES; status is on the state search
Practice location
2633 Commons Blvd Ste 120, Beavercreek, OH 45431
Phone
(937) 429-0607
Enumerated
Oct 8, 2008
Record last updated
Nov 21, 2024
Fax
(937) 702-9041
Medicare enrollment
Enrolled (PECOS I20110909002523); accepts Medicare assignment
Medical or professional school
Ohio University, College Of Osteopathic Medicine, 2007
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 2633 Commons Blvd Ste 120

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

  1. Opeyemi Alli, MDInternal Medicine Physician1770986465
  2. Jenna Ballou, FNPFamily Nurse Practitioner1306450176
  3. Rebecca Cherry, MDFamily Medicine Physician1285622043
  4. Arthur Jonas, M.D.Family Medicine Physician1306847223
  5. Catherine Sargent, DOFamily Medicine Physician1811995277
  6. Nicole ViolaStudent in an Organized Health Care Education/Training Program1639874324

Verify Rachel Marie Mast in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 34010242
    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 Ohio 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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95% fewer Medicare Part D claims than the average internal medicine physician in 2024

143 Medicare Part D claims for 61 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Rachel Mast143
  2. Specialty average3,176

Most prescribed

  1. Amoxicillin-Clavulanate Potass13 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.

Bills Medicare through 2 group practices

  1. Dayton Osteopathic HospitalDayton, OH
  2. Internal Medicine Care, IncBeavercreek, OH

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

15 internal medicine physician records list a practice address in Beavercreek

They are 15 of the 1,162 NPPES records with a practice address in Beavercreek, and 5,277 internal medicine physician records in Ohio.

Other internal medicine physician records in Ohio

  1. Evan Abalos, D.O.Toledo, OH1194163089
  2. Susan Abbott, MDCincinnati, OH1568414290
  3. Walid Abboud, MDCleveland, OH1245295559
  4. Joelle Abdallah, MDColumbus, OH1912577651
  5. Mandi Abdel Ahad, DOCleveland, OH1235870551
  6. Saaid Abdel-Ghani, M.D.Columbus, OH1598926529
  7. Bahaa Abdelghaffar, MDCleveland, OH1265954275
  8. John Abdelnour, MDCleveland, OH1114656931
  9. Ahmad Abdelrahman, MDToledo, OH1134859192
  10. Nawal Abdi, MDCleveland, OH1154002582

Common questions

What is Rachel Marie Mast, D.O.'s NPI number?

Rachel Marie Mast, D.O.'s National Provider Identifier (NPI) is 1952552812, issued on Oct 8, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Rachel Marie Mast, D.O. located?

The NPPES record lists a practice address at 2633 Commons Blvd Ste 120, Beavercreek, OH, 45431. Phone: (937) 429-0607. Providers update this record themselves, so call before visiting.

How can I verify Rachel Marie Mast, D.O.'s license?

NPPES lists Ohio license number 34010242, 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 Rachel Marie Mast, D.O. prescribe under Medicare Part D?

In 2024, Rachel Marie Mast, D.O. had 143 Medicare Part D claims for 61 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.