Quick answers
- Does Adam T. Zierenberg accept Medicare assignment?
- Yes. Medicare's clinician data says Adam T. Zierenberg 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 Adam T. Zierenberg see?
- In 2024, CMS data shows 606 Original Medicare patients and 1,748 services for Adam T. Zierenberg. This counts Original Medicare only and measures volume, not quality.
- What is Adam T. Zierenberg's NPI number?
- 1821202573. 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 Adam T. Zierenberg, 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 | 606 |
|---|---|
| Services billed to Medicare | 1,748 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)412 services
- Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)228 services
- Injection of lower or sacral spine facet joint using imaging guidance, second level (64494)194 services
- Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)137 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)108 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).
- Arthritis75%
- High blood pressure70%
- High cholesterol69%
- Diabetes30%
- Ischemic heart disease26%
- Depression26%
Hospitals where Adam T. Zierenberg works
Medicare's Facility Affiliation Data lists Adam T. Zierenberg 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.
- Dayton General HospitalDayton, WA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 501302
- Providence St Mary Medical CenterWalla Walla, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500002
- St Anthony HospitalPendleton, OR · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 381319
- Wallowa Memorial HospitalEnterprise, OR · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 381306
Practice locations
Addresses where Adam T. Zierenberg is enrolled with Medicare (CMS data updated October 2, 2026).
- 380 Chase AveWalla Walla, WA 99362 (509) 897‑3333
- 401 W Poplar StWalla Walla, WA 99362 (509) 897‑3320
Group practices
Medicare enrollment lists Adam T. Zierenberg as a member of this group (CMS data updated October 2, 2026).
- Providence Health and Services - Washington270 clinicians in the group
Specialties
Find other Physical Medicine and Rehabilitation doctors in Washington →
Other rehabilitation doctors in Walla Walla
Clinicians with the same Medicare primary specialty in Walla Walla, WA — not a recommendation.
Other clinicians in Providence Health and Services - Washington
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821202573 |
| 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