Quick answers
- Does Russell S. Montgomery accept Medicare assignment?
- Yes. Medicare's clinician data says Russell S. Montgomery 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 S. Montgomery see?
- In 2024, CMS data shows 623 Original Medicare patients and 1,227 services for Russell S. Montgomery. This counts Original Medicare only and measures volume, not quality.
- What is Russell S. Montgomery's NPI number?
- 1386624526. 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 S. Montgomery, 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 | 623 |
|---|---|
| Services billed to Medicare | 1,227 |
| Different services or procedures | 60 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Ultrasound study of arm or leg veins with compression and maneuvers (93970)151 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)130 services
- Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)126 services
- Ultrasound study of one arm or leg veins with compression and maneuvers (93971)106 services
- Fusion of lower spine bone through abdomen with partial removal of disc (22558)78 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 cholesterol75%
- Arthritis61%
- Diabetes47%
- Ischemic heart disease46%
- Chronic kidney disease42%
Hospitals where Russell S. Montgomery works
Medicare's Facility Affiliation Data lists Russell S. Montgomery 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.
- Hoag Orthopedic InstituteIrvine, CA · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 050769
- Providence St. Joseph HospitalOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050069
- Providence St. Jude Medical CenterFullerton, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050168
Practice locations
Addresses where Russell S. Montgomery is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1100 N Tustin Ave, Suite ASanta Ana, CA 92705 (714) 835‑6055
- 1310 W Stewart Dr, Suite 406Orange, CA 92868 (714) 532‑0793
- 230 S Main StOrange, CA 92868
- 3300 W Coast Hwy, Suite BNewport Beach, CA 92663 (949) 726‑9100
- 9191 Westminster, Ave 210Garden Grove, CA 92844 (714) 784‑1657
Group practices
Medicare enrollment lists Russell S. Montgomery as a member of these groups (CMS data updated October 2, 2026).
- Beverly Radiology Medical Group III328 clinicians in the group
- Southern California Vascular Associates Inc3 clinicians in the group
Specialties
- Vascular Surgeryprimary
Other vascular surgeons in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Beverly Radiology Medical Group III
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | George Washington University School Of Medicine |
| Graduation year | 1993 (33 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) | 1386624526 |
| 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