Quick answers
- Does Karla P. Olmedo Gutierrez accept Medicare assignment?
- Yes. Medicare's clinician data says Karla P. Olmedo Gutierrez 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 Karla P. Olmedo Gutierrez see?
- In 2024, CMS data shows 323 Original Medicare patients and 120,089 services for Karla P. Olmedo Gutierrez. This counts Original Medicare only and measures volume, not quality.
- What is Karla P. Olmedo Gutierrez's NPI number?
- 1407210891. 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 Karla P. Olmedo Gutierrez, 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 | 323 |
|---|---|
| Services billed to Medicare | 120,089 |
| Different services or procedures | 138 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg (J1569)8,190 services
- Injection, aprepitant, 1 mg (J0185)5,980 services
- Injection, denosumab, 1 mg (J0897)3,120 services
- Injection, ondansetron hydrochloride, per 1 mg (J2405)1,308 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)966 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%
- Arthritis46%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)41%
- Diabetes40%
- Chronic kidney disease35%
Hospitals where Karla P. Olmedo Gutierrez works
Medicare's Facility Affiliation Data lists Karla P. Olmedo Gutierrez 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.
- Memorialcare Long Beach Medical CenterLong Beach, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050485
- St Mary Medical CenterLong Beach, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050191
- UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348
Practice locations
Addresses where Karla P. Olmedo Gutierrez is enrolled with Medicare (CMS data updated October 2, 2026).
- 1043 Elm Ave, Suite 104Long Beach, CA 90813 (562) 590‑0345
- 3747 Worsham Ave, Suite 101Long Beach, CA 90808 (562) 430‑5900
Group practices
Medicare enrollment lists Karla P. Olmedo Gutierrez as a member of this group (CMS data updated October 2, 2026).
- City of Hope Medical Foundation982 clinicians in the group
Specialties
- Medical Oncologyprimary
Other oncologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in City of Hope Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 (11 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) | 1407210891 |
| 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