Tracy Ann Siegfried, M.D.
Internal Medicine · Laguna Hills, CA
At a glance
24331 El Toro Rd Ste 330, Laguna Hills, CA 92637-2754
NPPES record updated Jul 10, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
24331 El Toro Rd Ste 330Laguna Hills, CA 92637-2754
Additional reported practice locations
24221 Calle De La LouisaSuite 400
Laguna Hills, CA 926537638
Phone: 9494658155
Fax: 9494658159
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 1994
- CMS specialties
- Internal Medicine
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Hoag Memorial Hospital Presbyterian Newport Beach, CA
- Memorialcare Saddleback Medical Center Laguna Hills, CA
- Providence Mission Hospital Mission Viejo, CA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Reported clinician measures
Measures below describe reported clinician performance in the stated period. They do not form an overall HCPList rating, and reporting differs between clinicians.
Published clinical measures
- Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)
- 27%2024Published MIPS performance rate. Lower rates indicate better performance for this inverse measure. Measure: MIPS_EC_001_overall. Collection type: EHR. Measure denominator: 77.
- Diabetes: Eye Exam
- 0%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_117_overall. Collection type: EHR. Measure denominator: 113.
- Use of High-Risk Medications in Older Adults
- 8%2024Published MIPS performance rate. Lower rates indicate better performance for this inverse measure. Measure: MIPS_EC_238_overall. Collection type: EHR. Measure denominator: 731.
See all 5 reported measures
- Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented
- 31%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_317_overall. Collection type: EHR. Measure denominator: 623.
- Closing the Referral Loop: Receipt of Specialist Report
- 5%2024Published MIPS performance rate. Higher rates indicate better performance for this measure. Measure: MIPS_EC_374_overall. Collection type: EHR. Measure denominator: 365.
Source: PY 2024 Clinician Public Reporting: MIPS Measures and Attestations · Published Sep 10, 2026.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Internal Medicine
- Taxonomy code
- 207R00000X
- Enumeration date
- Jan 29, 2007
- Record updated
- Jul 10, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207R00000X · Primary
License reported: A62919 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
24331 El Toro Rd Ste 330Laguna Hills, CA 92637-2754
- Phone
- (949) 716-0833
- Fax
- (949) 716-0830
Mailing address
23141 MOULTON PKWY STE 102LAGUNA HILLS, CA 926531241
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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