Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
MS. TRACY ANN SIEGFRIED, M.D.
ActiveMS. TRACY ANN SIEGFRIED, M.D. is a Internal Medicine healthcare provider located in LAGUNA HILLS, California. NPI 1366598591 is currently active in the NPPES registry. Verify at CMS.
Internal Medicine · LAGUNA HILLS, CA
Registration Details
- NPI Number
- 1366598591
- Provider Type
- Individual
- Gender
- Female
- NPI Issued
- Jan 29, 2007 (19.357979068229 yrs)
- Last Updated
- Nov 28, 2025
- License
-
A62919 (CA)
Practice Information
- Address
-
24331 EL TORO RD STE 330LAGUNA HILLS, CA, 926372754Browse CA providers · Browse ZIP 92637
- Phone
- 9497160833
- Fax
- 9497160830
- Primary Specialty
-
Internal Medicine
207R00000X
Other Internal Medicine Providers in LAGUNA HILLS, CA
| Name | Credential | NPI |
|---|---|---|
| DR. HUMBERTO JOSE BOCCARDO | M.D. | 1689679458 |
| DR. PIYANETR SUKHU | M.D. | 1497750269 |
| DR. ROBERT PETER LAZATIN | M.D. | 1700865755 |
| DR. ALAN Y LO | MD | 1982683637 |
| DR. ARTHUR J DAIGNEAULT | MD | 1609845361 |
| DR. CURTIS W SIU | MD | 1386613081 |
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.