Quick answers
- Does Michelle B. Crosby accept Medicare assignment?
- Yes. Medicare's clinician data says Michelle B. Crosby 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 Michelle B. Crosby see?
- In 2024, CMS data shows 1,028 Original Medicare patients and 4,199 services for Michelle B. Crosby. This counts Original Medicare only and measures volume, not quality.
- What is Michelle B. Crosby's NPI number?
- 1558549303. 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 Michelle B. Crosby, 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 | 1,028 |
|---|---|
| Services billed to Medicare | 4,199 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Photography of the retina (92250)970 services
- Established patient complete exam of visual system (92014)849 services
- Imaging of optic nerve (92133)701 services
- Imaging of retina (92134)254 services
- Established patient problem focused exam of visual system (92012)175 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 pressure60%
- Arthritis48%
- Osteoporosis27%
- Ischemic heart disease25%
- Anxiety17%
Practice locations
Addresses where Michelle B. Crosby is enrolled with Medicare (CMS data updated October 2, 2026).
- 8860 Ctr Dr, Suite 300La Mesa, CA 91942
Group practices
Medicare enrollment lists Michelle B. Crosby as a member of this group (CMS data updated October 2, 2026).
- Grossmont Dermatology Medical Clinic10 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in La Mesa
Clinicians with the same Medicare primary specialty in La Mesa, CA — not a recommendation.
Other clinicians in Grossmont Dermatology Medical Clinic
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical University Of South Carolina College Of Medicine |
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558549303 |
| 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