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Psychiatry

John R. Weiffenbach Iv, MD

Works at hospitals in Dayton, OH · Ohio

Summary

Dr. John R. Weiffenbach Iv, MD is a psychiatrist at 1 Wyoming St, Dayton, OH 45409. Phone: (937) 832-4773. Accepts Medicare assignment. In 2024, John R. Weiffenbach Iv had 86 Original Medicare patients and 236 services. NPI 1316293277. 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: Psychiatrist (Medicare lists Psychiatry)
  • Address: 1 Wyoming St, Dayton, OH 45409 · Directions (3 more locations)
  • Phone: (937) 832‑4773
  • Medicare: Accepts Medicare assignment
  • Hospital: Miami Valley Hospital
  • Group practice: Premier Health Specialists Inc
  • Medical school: Wright State University Boonshoft School Of Medicine · graduated 2012 (14 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about John R. Weiffenbach Iv, 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 John R. Weiffenbach Iv accept Medicare assignment?
Yes. Medicare's clinician data says John R. Weiffenbach Iv 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 John R. Weiffenbach Iv see?
In 2024, CMS data shows 86 Original Medicare patients and 236 services for John R. Weiffenbach Iv. This counts Original Medicare only and measures volume, not quality.
What is John R. Weiffenbach Iv's NPI number?
1316293277. 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 John R. Weiffenbach Iv, 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 patients86
Services billed to Medicare236
Different services or procedures9
Participating Medicare providerYes
Average age of these patients64

Most frequent services

  1. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)94 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)68 services
  3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)58 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • Anxiety75%
  • Depression73%
  • High cholesterol69%
  • Alzheimer's disease or dementia48%
  • Arthritis40%

Hospitals where John R. Weiffenbach Iv works

Medicare's Facility Affiliation Data lists John R. Weiffenbach Iv 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 John R. Weiffenbach Iv is enrolled with Medicare (CMS data updated October 2, 2026).

  • 1 Wyoming StDayton, OH 45409
  • 2400 Miami Valley DrCenterville, OH 45459
  • 450 N Hyatt St, Suite 304Tipp City, OH 45371 (937) 832‑4773
  • 9000 N Main StEnglewood, OH 45415

Group practices

Medicare enrollment lists John R. Weiffenbach Iv as a member of this group (CMS data updated October 2, 2026).

  • Premier Health Specialists Inc580 clinicians in the group

Specialties

Find other Psychiatry doctors in Ohio →

Other psychiatrists in Dayton

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

All psychiatrists 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 schoolWright State University Boonshoft School Of Medicine
Graduation year2012 (14 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1316293277
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