Quick answers
- Does Marnie G. Lamm accept Medicare assignment?
- Yes. Medicare's clinician data says Marnie G. Lamm 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 Marnie G. Lamm see?
- In 2024, CMS data shows 313 Original Medicare patients and 584 services for Marnie G. Lamm. This counts Original Medicare only and measures volume, not quality.
- What is Marnie G. Lamm's NPI number?
- 1689992265. 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 Marnie G. Lamm, 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 | 313 |
|---|---|
| Services billed to Medicare | 584 |
| Different services or procedures | 51 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)130 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)100 services
- Automated urinalysis test (81003)48 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)48 services
- Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)36 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 cholesterol75%
- High blood pressure66%
- Arthritis53%
- Ischemic heart disease27%
- Depression24%
- Anxiety22%
Practice locations
Addresses where Marnie G. Lamm is enrolled with Medicare (CMS data updated October 2, 2026).
- 101 W Irvington RdTucson, AZ 85714 (520) 670‑3909
- 839 W Congress StTucson, AZ 85745 (520) 670‑3909
Group practices
Medicare enrollment lists Marnie G. Lamm as a member of this group (CMS data updated October 2, 2026).
- El Rio Santa Cruz Neighborhood Health Center, Inc.275 clinicians in the group
Specialties
- Family Practiceprimary
- Hospice/Palliative Carealso
Other family doctors in Tucson
Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.
Other clinicians in El Rio Santa Cruz Neighborhood Health Center, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689992265 |
| 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