Martha Maria Herrero, MD
Emergency Medicine Physician · Tustin, CA
Martha Maria Herrero, MD is an emergency medicine physician with a practice address in Tustin, California, and NPI 1932269156, issued on Dec 11, 2006. Check the license (California C51876, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Martha Maria Herrero
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- C51876 CA
70-32 NM
D7474 TX
Self-reported in NPPES; status is on the state search - Practice location
- 15143 Woodlawn Ave, Tustin, CA 92780
- Phone
- (714) 426-4500
- Enumerated
- Dec 11, 2006
- Record last updated
- Sep 15, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (714) 426-4500
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Verify Martha Maria Herrero in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C51876Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average emergency medicine physician in 2024
44 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
Martha Maria Herrero among 7,751 emergency medicine physician records in California
Martha Maria Herrero, MD is one of 7,751 emergency 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 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2014 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Tustin → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Philip Fagan, M.D.Tustin, CA 927801255335154
- Maxwell Jen, MDTustin, CA 927801154688810
- Fergus Ng, MDTustin, CA 927801700806981
- Andrew Tran, MDTustin, CA 927801669408621
- Yusaku Uchimura, MDTustin, CA 927801487670873
- Jai Ho, MDAnaheim, CA 928011396788345
- Christopher Lai, M.DAnaheim, CA 928011487670907
- Richard Oxman, M.D.Anaheim, CA 928011487704789
Common questions
What is Martha Maria Herrero, MD's NPI number?
Martha Maria Herrero, MD's National Provider Identifier (NPI) is 1932269156, issued on Dec 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Martha Maria Herrero, MD located?
The NPPES record lists a practice address at 15143 Woodlawn Ave, Tustin, CA, 92780. Phone: (714) 426-4500. Providers update this record themselves, so call before visiting.
How can I verify Martha Maria Herrero, MD's license?
NPPES lists California license number C51876, as entered by the provider. 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 Martha Maria Herrero, MD prescribe under Medicare Part D?
In 2024, Martha Maria Herrero, MD had 44 Medicare Part D claims; the average among emergency medicine physician prescribers was 226. 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.