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Obstetrics/Gynecology

Jason C. Massengill, MD

Works at hospitals in Dayton, OH · Ohio

Summary

Dr. Jason C. Massengill, MD is an OB-GYN at 1 Wyoming St, Dayton, OH 45409. Phone: (937) 832-4773. Accepts Medicare assignment. In 2024, Jason C. Massengill had 13 Original Medicare patients and 45 services. NPI 1134263338. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 1 Wyoming St, Dayton, OH 45409 · Directions (2 more locations)
  • Phone: (937) 832‑4773
  • Medicare: Accepts Medicare assignment
  • Hospital: Miami Valley Hospital
  • Group practice: Premier Health Specialists Inc
  • Medical school: Uniformed Services Uhs Fe Hebert School Of Med · graduated 2003 (23 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Jason C. Massengill, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Jason C. Massengill accept Medicare assignment?
Yes. Medicare's clinician data says Jason C. Massengill accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Jason C. Massengill see?
In 2024, CMS data shows 13 Original Medicare patients and 45 services for Jason C. Massengill. This counts Original Medicare only and measures volume, not quality.
What is Jason C. Massengill's NPI number?
1134263338. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Jason C. Massengill, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients13
Services billed to Medicare45
Different services or procedures21
Participating Medicare providerYes
Average age of these patients77

Hospitals where Jason C. Massengill works

Medicare's Facility Affiliation Data lists Jason C. Massengill at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Miami Valley HospitalDayton, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360051

Practice locations

Addresses where Jason C. Massengill is enrolled with Medicare (CMS data updated October 2, 2026).

  • 1 Wyoming StDayton, OH 45409
  • 400 Sugar Camp CirOakwood, OH 45409
  • 450 N Hyatt St, Suite 304Tipp City, OH 45371 (937) 832‑4773

Group practices

Medicare enrollment lists Jason C. Massengill as a member of this group (CMS data updated October 2, 2026).

  • Premier Health Specialists Inc580 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Ohio →

Other OB-GYNs in Dayton

Clinicians with the same Medicare primary specialty in Dayton, OH — not a recommendation.

All OB-GYNs in Dayton →

Other clinicians in Premier Health Specialists Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniformed Services Uhs Fe Hebert School Of Med
Graduation year2003 (23 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134263338
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians