Quick answers
- Does Francis Arenas accept Medicare assignment?
- Yes. Medicare's clinician data says Francis Arenas 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 Francis Arenas see?
- In 2024, CMS data shows 556 Original Medicare patients and 5,139 services for Francis Arenas. This counts Original Medicare only and measures volume, not quality.
- What is Francis Arenas's NPI number?
- 1275717647. 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 Francis Arenas, 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 | 556 |
|---|---|
| Services billed to Medicare | 5,139 |
| Different services or procedures | 86 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,455 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)785 services
- Blood glucose (sugar) test performed by hand-held instrument (82962)746 services
- Injection of drug or substance under skin or into muscle (96372)389 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)260 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%
- Diabetes58%
- Chronic kidney disease50%
- Arthritis46%
- Ischemic heart disease32%
Hospitals where Francis Arenas works
Medicare's Facility Affiliation Data lists Francis Arenas 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.
- Good Samaritan Hospital, LPBakersfield, CA · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 050257
Practice locations
Addresses where Francis Arenas is enrolled with Medicare (CMS data updated October 2, 2026).
- 5400 Aldrin CtBakersfield, CA 93313 (661) 735‑8867
- 5401 White LnBakersfield, CA 93309 (661) 396‑7100
Group practices
Medicare enrollment lists Francis Arenas as a member of this group (CMS data updated October 2, 2026).
- Infusion and Clinical Services Inc38 clinicians in the group
Specialties
- Internal Medicineprimary
- Family Practicealso
Other internal medicine doctors in Bakersfield
Clinicians with the same Medicare primary specialty in Bakersfield, CA — not a recommendation.
Other clinicians in Infusion and Clinical Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1275717647 |
| 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