Quick answers
- Does Kevin S. Hatfield accept Medicare assignment?
- Yes. Medicare's clinician data says Kevin S. Hatfield 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 Kevin S. Hatfield see?
- In 2024, CMS data shows 77 Original Medicare patients and 3,573 services for Kevin S. Hatfield. This counts Original Medicare only and measures volume, not quality.
- What is Kevin S. Hatfield's NPI number?
- 1588631154. 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 Kevin S. Hatfield, 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 | 77 |
|---|---|
| Services billed to Medicare | 3,573 |
| Different services or procedures | 76 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)83 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)75 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)27 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)25 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)25 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 pressure44%
- High cholesterol44%
- Arthritis29%
- Chronic kidney disease17%
- Ischemic heart disease16%
- Anxiety16%
Practice locations
Addresses where Kevin S. Hatfield is enrolled with Medicare (CMS data updated October 2, 2026).
- 509 Olive Way, 900 the Polyclinic DowntownSeattle, WA 98101 (206) 860‑4700
Group practices
Medicare enrollment lists Kevin S. Hatfield as a member of this group (CMS data updated October 2, 2026).
- The Polyclinic PLLC365 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Seattle
Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.
Other clinicians in The Polyclinic PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1588631154 |
| 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
- 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