Quick answers
- Does Fred F. Shahan accept Medicare assignment?
- Yes. Medicare's clinician data says Fred F. Shahan 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 Fred F. Shahan see?
- In 2024, CMS data shows 1,254 Original Medicare patients and 10,696 services for Fred F. Shahan. This counts Original Medicare only and measures volume, not quality.
- What is Fred F. Shahan's NPI number?
- 1811913221. 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 Fred F. Shahan, 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 | 1,254 |
|---|---|
| Services billed to Medicare | 10,696 |
| Different services or procedures | 73 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)2,539 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)1,336 services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)1,026 services
- Destruction of precancer skin growth, 1 growth (17000)694 services
- Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks (17312)684 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 pressure71%
- Arthritis48%
- Ischemic heart disease30%
- Diabetes28%
- Chronic kidney disease24%
Practice locations
Addresses where Fred F. Shahan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1334 N Imperial AveEl Centro, CA 92243 (760) 337‑8500
- 320 Santa Fe Dr, Suite 303Encinitas, CA 92024 (760) 994‑8080
- 6367 Alvarado Ct, Suite 107San Diego, CA 92120 (619) 287‑1822
Group practices
Medicare enrollment lists Fred F. Shahan as a member of this group (CMS data updated October 2, 2026).
- Anthony Huynh Medical Group Inc5 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in El Centro
Clinicians with the same Medicare primary specialty in El Centro, CA — not a recommendation.
Other clinicians in Anthony Huynh 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, San Diego School Of Medicine |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811913221 |
| 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