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Family Practice

Marlon D. Twyman, MD

Works at hospitals in Dayton, OH · Ohio

Summary

Dr. Marlon D. Twyman, MD is a family doctor at 1152 W 3rd St, Dayton, OH 45402. Phone: (937) 268-3483. Accepts Medicare assignment. In 2024, Marlon D. Twyman had 95 Original Medicare patients and 647 services. NPI 1336104009. 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: Family doctor (Medicare lists Family Practice)
  • Address: 1152 W 3rd St, Dayton, OH 45402 · Directions
  • Phone: (937) 268‑3483
  • Medicare: Accepts Medicare assignment
  • Hospital: Miami Valley Hospital
  • Group practice: Premier Integrated Medical Assoc Ltd
  • Medical school: University Of Toledo College Of Medicine · graduated 1984 (42 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Marlon D. Twyman, 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 Marlon D. Twyman accept Medicare assignment?
Yes. Medicare's clinician data says Marlon D. Twyman 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 Marlon D. Twyman see?
In 2024, CMS data shows 95 Original Medicare patients and 647 services for Marlon D. Twyman. This counts Original Medicare only and measures volume, not quality.
What is Marlon D. Twyman's NPI number?
1336104009. 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 Marlon D. Twyman, 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 patients95
Services billed to Medicare647
Different services or procedures26
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)173 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)168 services
  3. Insertion of needle into vein for collection of blood sample (36415)78 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)43 services
  5. Annual depression screening, 5 to 15 minutes (G0444)43 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%
  • High cholesterol75%
  • Arthritis60%
  • Chronic kidney disease42%
  • Diabetes38%
  • Depression20%

Hospitals where Marlon D. Twyman works

Medicare's Facility Affiliation Data lists Marlon D. Twyman 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 Marlon D. Twyman is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Marlon D. Twyman as a member of this group (CMS data updated October 2, 2026).

  • Premier Integrated Medical Assoc Ltd20 clinicians in the group

Specialties

Find other Family Practice doctors in Ohio →

Other family doctors in Dayton

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

All family doctors in Dayton →

Other clinicians in Premier Integrated Medical Assoc Ltd

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

Clinician information

CredentialMD
Medical schoolUniversity Of Toledo College Of Medicine
Graduation year1984 (42 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1336104009
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