Dr. Theresa S. Maestas, MD
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 17100 Euclid St, Fountain Valley, CA 92708
- Practice phone
- Call (714) 966-7200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Maestas' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Theresa S. Maestas is an emergency medicine physician in Fountain Valley, California
Dr. Maestas practices in Fountain Valley, California.
Dr. Maestas' NPI, 1043242373, was assigned on July 7, 2006. Dr. Maestas graduated from UC Irvine School of Medicine in 1979. Dr. Maestas' California license number on file is G43392.
- NPI
- 1043242373NPI Registry (opens in a new tab)
- NPI enumeration date
- July 7, 2006
- NPI status
- Active
- Practice phone
- (714) 966-7200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Theresa S. Maestas' practice address is in Fountain Valley, California
Dr. Maestas' practice address in the NPI Registry is 17100 Euclid St, Fountain Valley, CA 92708. The practice phone is (714) 966-7200.
- NPI Registry address17100 Euclid St, Fountain Valley, CA 92708Phone(714) 966-7200
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Theresa S. Maestas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maestas practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Maestas' practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Theresa S. Maestas is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Maestas' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Maestas has a license on file in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Maestas
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Theresa S. Maestas' patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Dr. Maestas' median patient age at 64, with 100% women.
Dr. Maestas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Theresa S. Maestas graduated from UC Irvine School of Medicine
Dr. Maestas graduated from UC Irvine School of Medicine in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Theresa S. Maestas's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Theresa S. Maestas
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Theresa S. Maestas' NPI number?
Dr. Theresa S. Maestas' NPI number is 1043242373. It was assigned on July 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Theresa S. Maestas?
Dr. Theresa S. Maestas is an emergency medicine physician in Fountain Valley, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Theresa S. Maestas practice?
Dr. Maestas practices at 17100 Euclid St, Fountain Valley, CA 92708.
What is Dr. Theresa S. Maestas' office phone number?
The practice phone on file for Dr. Maestas is (714) 966-7200.
What is Dr. Theresa S. Maestas' medical license number?
Dr. Maestas' California license number on file is G43392.
Where did Dr. Theresa S. Maestas go to medical school?
Dr. Maestas graduated from UC Irvine School of Medicine in 1979.
How long has Dr. Theresa S. Maestas been practicing?
Dr. Maestas graduated from medical school in 1979, 47 years ago.
Selling to emergency medicine practices?
See emergency medicine physicians in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card