Quick answers
- Does Marsha A. Martinson accept Medicare assignment?
- Yes. Medicare's clinician data says Marsha A. Martinson 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 Marsha A. Martinson see?
- In 2024, CMS data shows 114 Original Medicare patients and 219 services for Marsha A. Martinson. This counts Original Medicare only and measures volume, not quality.
- What is Marsha A. Martinson's NPI number?
- 1043525157. 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 Marsha A. Martinson, 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 | 114 |
|---|---|
| Services billed to Medicare | 219 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 63 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)116 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)26 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)15 services
- Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)11 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 pressure72%
- High cholesterol69%
- Diabetes44%
- Arthritis33%
- Depression25%
- Anxiety22%
Practice locations
Addresses where Marsha A. Martinson is enrolled with Medicare (CMS data updated October 2, 2026).
- 8077 Florence Ave, Suite 112Downey, CA 90240 (562) 904‑6031
Group practices
Medicare enrollment lists Marsha A. Martinson as a member of this group (CMS data updated October 2, 2026).
- Allsafe Medical Group Inc16 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Downey
Clinicians with the same Medicare primary specialty in Downey, CA — not a recommendation.
Other clinicians in Allsafe Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043525157 |
| 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
- 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