Quick answers
- Does Christian L. Serdahl accept Medicare assignment?
- Yes. Medicare's clinician data says Christian L. Serdahl 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 Christian L. Serdahl see?
- In 2024, CMS data shows 461 Original Medicare patients and 710 services for Christian L. Serdahl. This counts Original Medicare only and measures volume, not quality.
- What is Christian L. Serdahl's NPI number?
- 1740279710. 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 Christian L. Serdahl, 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 | 461 |
|---|---|
| Services billed to Medicare | 710 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)401 services
- Photography of the retina (92250)58 services
- Imaging of optic nerve (92133)52 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)44 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)27 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 pressure72%
- Arthritis48%
- Diabetes28%
- Chronic kidney disease25%
- Osteoporosis22%
Practice locations
Addresses where Christian L. Serdahl is enrolled with Medicare (CMS data updated October 2, 2026).
- 4925 J StSacramento, CA 95819
Group practices
Medicare enrollment lists Christian L. Serdahl as a member of this group (CMS data updated October 2, 2026).
- Eye Site Sacramento Medical Group Inc.7 clinicians in the group
Specialties
- Ophthalmologyprimary
- Family Practicealso
Other ophthalmologists in Sacramento
Clinicians with the same Medicare primary specialty in Sacramento, CA — not a recommendation.
Other clinicians in Eye Site Sacramento Medical Group Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 1987 (39 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740279710 |
| 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