Quick answers
- Does Russell A. Riehl accept Medicare assignment?
- Yes. Medicare's clinician data says Russell A. Riehl 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 Russell A. Riehl see?
- In 2024, CMS data shows 339 Original Medicare patients and 650 services for Russell A. Riehl. This counts Original Medicare only and measures volume, not quality.
- What is Russell A. Riehl's NPI number?
- 1891144317. 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 Russell A. Riehl, 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 | 339 |
|---|---|
| Services billed to Medicare | 650 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)273 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)82 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)42 services
- Heart muscle strain imaging (93356)41 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)24 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 cholesterol73%
- Arthritis46%
- Atrial fibrillation40%
- Ischemic heart disease37%
- Chronic kidney disease32%
Hospitals where Russell A. Riehl works
Medicare's Facility Affiliation Data lists Russell A. Riehl 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
- MaineHealth Pen Bay HospitalRockport, ME · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 200063
- MaineHealth Waldo HospitalBelfast, ME · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 201312
Practice locations
Addresses where Russell A. Riehl is enrolled with Medicare (CMS data updated October 2, 2026).
- 116 Northport Ave, 218 Wcmp PulmonologyBelfast, ME 04915 (207) 505‑4674
- 22 Bramhall StPortland, ME 04102
- 4 Glen Cove Dr, Suite 205Rockport, ME 04856 (207) 921‑5700
- 6 Glen Cove DrRockport, ME 04856
Group practices
Medicare enrollment lists Russell A. Riehl as a member of this group (CMS data updated October 2, 2026).
- MaineHealth2,633 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Maine →
Other cardiologists in Maine
Clinicians with the same Medicare primary specialty in Maine — not a recommendation.
Other clinicians in MaineHealth
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tulane University School Of Medicine |
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891144317 |
| 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