Naomi R. Sullivan, MD

Medicare activity in 2024

Official CMS public-use data for Naomi R. Sullivan, 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.

Most frequent services

1. Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) (J0717)74,462 services
2. Unclassified biologics (J3590)34,394 services
3. Injection, tocilizumab, 1 mg (J3262)25,424 services
4. Injection, infliximab, excludes biosimilar, 10 mg (J1745)23,497 services
5. Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) (J0129)18,726 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 pressure62%
• High cholesterol60%
• Osteoporosis32%
• Ischemic heart disease22%
• Depression22%

Hospitals where Naomi R. Sullivan works

Medicare's Facility Affiliation Data lists Naomi R. Sullivan 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.

• Island HospitalAnacortes, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500007
• PeaceHealth Peace Island Medical CenterFriday Harbor, WA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 501340
• PeaceHealth St Joseph Medical CenterBellingham, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 500030
• PeaceHealth United General Medical CenterSedro Woolley, WA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 501329

Practice locations

Addresses where Naomi R. Sullivan is enrolled with Medicare (CMS data updated October 2, 2026).

• 470 Birchwood Ave, Suite CBellingham, WA 98225 (360) 734‑5754

Specialties

• Rheumatologyprimary
• Internal Medicinealso

Find other Rheumatology doctors in Washington →

Other rheumatologists in Washington

Clinicians with the same Medicare primary specialty in Washington — not a recommendation.

• Su Yin, MD
• Sarah Chung, MD
• Namrata Singh, MD
• Frederick A. Jensen, MD
• Ingeborg A. Sacksen, MD
• Eric C. Mueller, MD
• Charmi Shah, MD
• Deepa Gali, MD

All rheumatologists in Washington →

Clinician information

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