Quick answers
- Does Martin L. Koonsman Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Martin L. Koonsman Jr. 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 Martin L. Koonsman Jr. see?
- In 2024, CMS data shows 37 Original Medicare patients and 59 services for Martin L. Koonsman Jr.. This counts Original Medicare only and measures volume, not quality.
- What is Martin L. Koonsman Jr.'s NPI number?
- 1992746580. 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 Martin L. Koonsman Jr., 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 patients | 37 |
|---|---|
| Services billed to Medicare | 59 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)45 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%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)65%
- Arthritis49%
- Chronic kidney disease41%
- Diabetes32%
Hospitals where Martin L. Koonsman Jr. works
Medicare's Facility Affiliation Data lists Martin L. Koonsman Jr. 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.
- Methodist Dallas Medical CenterDallas, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450051
Practice locations
Addresses where Martin L. Koonsman Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 221 W Colorado Blvd, Suite 532Dallas, TX 75208 (214) 943‑8605
Group practices
Medicare enrollment lists Martin L. Koonsman Jr. as a member of this group (CMS data updated October 2, 2026).
- Texas Oncology PA1,014 clinicians in the group
Specialties
- Surgical Oncologyprimary
Other surgical oncologists in Dallas
Clinicians with the same Medicare primary specialty in Dallas, TX — not a recommendation.
Other clinicians in Texas Oncology PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Texas Tech University Health Science Center School Of Medicine |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992746580 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians