Sergio Antonio Hernandez, MD
Emergency Medicine Physician · Montebello, CA
Sergio Antonio Hernandez, MD is an emergency medicine physician with a practice address in Montebello, California, and NPI 1346404456, issued on Jul 17, 2008. Check the license (California A109686, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sergio Antonio Hernandez
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A109686 CA
Self-reported in NPPES; status is on the state search - Practice location
- 309 W Beverly Blvd, Montebello, CA 90640
- Phone
- (323) 726-1222
- Enumerated
- Jul 17, 2008
- Record last updated
- Apr 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110705000401); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 309 W Beverly Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anahita Abbasi, PTPhysical Therapist1962612853
- Paul Alvarez, PTAPhysical Therapy Assistant1801416672
- Micaela Arambel, PA-CPhysician Assistant1811709173
- Michelle Bensoussan, PA-CPhysician Assistant1164930228
- Edwin Bermudez Barron, PHARM.D.Emergency Medicine Pharmacist1467132308
- Michael Chai, M.D.Anesthesiology Physician1558448894
Verify Sergio Antonio Hernandez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A109686Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average emergency medicine physician in 2024
184 Medicare Part D claims for 124 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 39 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen25 claims
- Ondansetron Odt17 claims
- Acetaminophen-Codeine13 claims
- Cephalexin13 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 94.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Cep America - CaliforniaGlendora, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sergio Antonio Hernandez among 7,751 emergency medicine physician records in California
Sergio Antonio Hernandez, 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 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2008 · median 2011 among the 4,560 with a school on file
- Record last updated2016 · 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 Montebello → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Dale Knox, M.D.Montebello, CA 906401215998919
- Raul Lopez, M.D.Montebello, CA 906401124089701
- Alejandro Perez-Sandi, FNPMontebello, CA 906401407683857
- John Uphold, MDMontebello, CA 906401124016837
- Sheila Wan, MDMontebello, CA 906401508093923
- Timothy Carman, M.D.Norwalk, CA 906501669426995
- Thomas Gionis, M.D.Norwalk, CA 906501780638049
- Jung-Eun Lim, MDNorwalk, CA 906501689089195
Common questions
What is Sergio Antonio Hernandez, MD's NPI number?
Sergio Antonio Hernandez, MD's National Provider Identifier (NPI) is 1346404456, issued on Jul 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Sergio Antonio Hernandez, MD located?
The NPPES record lists a practice address at 309 W Beverly Blvd, Montebello, CA, 90640. Phone: (323) 726-1222. Providers update this record themselves, so call before visiting.
How can I verify Sergio Antonio Hernandez, MD's license?
NPPES lists California license number A109686, 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 Sergio Antonio Hernandez, MD prescribe under Medicare Part D?
In 2024, Sergio Antonio Hernandez, MD had 184 Medicare Part D claims for 124 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Sergio Antonio Hernandez, MD's MIPS final score?
The 2023 MIPS final score is 94.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.