Teresa E. Shields-Szabo, MD
Family Medicine Physician · Foothill Ranch, CA
Teresa E. Shields-Szabo, MD is a family medicine physician with a practice address in Foothill Ranch, California, and NPI 1578677985, issued on Aug 19, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Teresa E. Shields-Szabo
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 39601 CO
Self-reported in NPPES; status is on the state search - Practice location
- 26795 Portola Pkwy, Foothill Ranch, CA 92610
- Phone
- (949) 829-9403
- Enumerated
- Aug 19, 2006
- Record last updated
- Nov 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (949) 829-9422
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 26795 Portola Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nancy Armanious, MDFamily Medicine Physician1952898744
- Phillip Cecchini, M.DFamily Medicine Physician1467480194
- Michael Stouder, M.D.Family Medicine Physician1669575866
- Justin Zubak, MDFamily Medicine Physician1831888338
Verify Teresa E. Shields-Szabo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average family medicine physician in 2024
1,436 Medicare Part D claims for 240 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium172 claims
- Atorvastatin Calcium132 claims
- Rosuvastatin Calcium71 claims
- Losartan Potassium67 claims
- Lisinopril66 claims
- Amlodipine Besylate62 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Teresa E. Shields-Szabo among 17,133 family medicine physician records in California
Teresa E. Shields-Szabo, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 family medicine physician records list a practice address in Foothill Ranch
They are 16 of the 169 NPPES records with a practice address in Foothill Ranch, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Foothill Ranch → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Nancy Armanious, MDFoothill Ranch, CA 926101952898744
- Glen Barbee, MDFoothill Ranch, CA 926101710035761
- Cherrie Bravo, MDFoothill Ranch, CA 926101962937177
- Phillip Cecchini, M.DFoothill Ranch, CA 926101467480194
- Michael Huang, M.D.Foothill Ranch, CA 926101295899045
- Benjamin Leong, M.D.Foothill Ranch, CA 926101184042202
- Shobha Rani Mahesh, M.D.Foothill Ranch, CA 926101992935068
- Ali Mor, M.D.Foothill Ranch, CA 926101184848418
Common questions
What is Teresa E. Shields-Szabo, MD's NPI number?
Teresa E. Shields-Szabo, MD's National Provider Identifier (NPI) is 1578677985, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Teresa E. Shields-Szabo, MD located?
The NPPES record lists a practice address at 26795 Portola Pkwy, Foothill Ranch, CA, 92610. Phone: (949) 829-9403. Providers update this record themselves, so call before visiting.
How can I verify Teresa E. Shields-Szabo, MD's license?
Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Teresa E. Shields-Szabo, MD prescribe under Medicare Part D?
In 2024, Teresa E. Shields-Szabo, MD had 1,436 Medicare Part D claims for 240 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.