Olga I. Diomede, MD

Medicare activity in 2024

Official CMS public-use data for Olga I. Diomede, 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. Daily hospital management of continuous spinal drug administration (01996)17 services
2. Anesthesia for other procedure on upper abdomen (00790)12 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 pressure74%
• High cholesterol73%
• Arthritis47%
• Anxiety36%
• Depression35%
• Ischemic heart disease30%

Hospitals where Olga I. Diomede works

Medicare's Facility Affiliation Data lists Olga I. Diomede 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.

• MaineHealth Maine Medical CenterPortland, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200009

Practice locations

Addresses where Olga I. Diomede is enrolled with Medicare (CMS data updated October 2, 2026).

• 22 Bramhall StPortland, ME 04102 (207) 662‑2526
• 84 Campus DrScarborough, ME 04074 (207) 396‑7000

Group practices

Medicare enrollment lists Olga I. Diomede as a member of this group (CMS data updated October 2, 2026).

• Spectrum Healthcare Partners PA308 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in Maine →

Other anesthesiologists in Portland

Clinicians with the same Medicare primary specialty in Portland, ME — not a recommendation.

• Jessica A. Hathaway, MD
• Philip J. Cook, DO
• Frederick C. Littlejohn, MD
• William Swartz, MD
• Christopher A. Faust, DO
• James M. Flowerdew, MD
• Alicia M. Leahy, MD
• Daniel A. Smith, MD

All anesthesiologists in Portland →

Other clinicians in Spectrum Healthcare Partners PA

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

• Douglas M. Dressel, MD
• Jessica A. Hathaway, MD
• Cydney J. Cox, MD
• Kamal N. Tarabine, MD
• Sharon G. Siegel, MD
• David T. Ahola, MD

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