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JASON ANTUNEZ M.D.
NPI 1578852877
Emergency Medicine in Merced, CA

Active since April 07, 2011PECOS Enrolled
333 MERCY AVE, MERCY MEDICAL CENTER EMERGENCY DEPARTMENT, MERCED, CA 95340(209) 564-5000 Get Directions Write a Review

NPPES record last updated: April 9, 2018. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Jason Antunez M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JASON ANTUNEZ M.D. (NPI 1578852877) is an individual emergency medicine provider in Merced, California, licensed in California (A129413) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1578852877
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameJASON ANTUNEZCredential: M.D.
Location Address333 MERCY AVE, MERCY MEDICAL CENTER EMERGENCY DEPARTMENTMerced, CA 95340-8319
Mailing Address1990 N California Blvd Ste 400Walnut Creek, CA 94596-7249 · (925) 482-8240 · Fax (925) 482-8241
Phone(209) 564-5000
Sole ProprietorYes
Enumeration DateApril 7, 2011
Last NPPES UpdateApril 9, 2018
✔ NPI 1578852877 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in CA · A129413✔ Licensed in NY · 293366
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedFamily MedicineTaxonomy 207Q00000X · License 293366 (NY)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
333 MERCY AVE, Merced, CA 95340
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jason Antunez M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Jason Antunez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

San Joaquin Emergency Medical Associates
Same address
Emergency Medicine
333 MERCY AVE
Merced, CA 95340
  • Reassigned Medicare billing, California enrollment
  • 141 clinicians in this Medicare group
NPI 1588960413 (844) 474-4019
Emergency Physician Services Of New York, P.C.
2,474 mi
Emergency Medicine
241 NORTH RD
Poughkeepsie, NY 12601
  • Reassigned Medicare billing, New York enrollment
  • 201 clinicians in this Medicare group
NPI 1093759847 (845) 483-5000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95340 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.32 typical visit price
range $58.87 – $176.60
Typical copayment $22.58 (range $14.71 – $44.15)
Most-billed visit code 99203
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALOK SHUKLA M.D.
Anesthesiology
333 MERCY AVE
MERCED, CA 95340
Merced County (209) 564-5000
DR. JOHN WILLIAM MCNEIL II M.D.
Emergency Medicine
333 MERCY AVE
MERCED, CA 95340
Merced County (209) 564-5000
MA LOVELY BATASIN DO
Emergency Medicine
333 MERCY AVE
MERCED, CA 95340
Merced County (209) 564-5000
JACOB GERALD
Physician Assistant
333 MERCY AVE
MERCED, CA 95340
Merced County (209) 564-5000
MRS. CECILIA JEANNY JANG PA-C
Physician Assistant (Medical)
333 MERCY AVE, EMERGENCY DEPARTMENT
MERCED, CA 95340
Merced County (209) 564-5153
OMAR SOHA
Family Medicine
333 MERCY AVE
MERCED, CA 95340
Merced County (209) 564-3500
DR. ANAHIT PETROSYAN M.D.
Student in an Organized Health Care Education/Training Program
333 MERCY AVE
MERCED, CA 95340
Merced County (209) 564-5000
MS. DAISEY CRUZ PA
Physician Assistant
333 MERCY AVE
MERCED, CA 95340
Merced County (209) 564-5000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jason Antunez's NPI number?

The NPI number for Jason Antunez is 1578852877. It was assigned to this individual provider in the NPPES registry on April 7, 2011.

Where is Jason Antunez located?

Jason Antunez practices at 333 Mercy Ave Mercy Medical Center Emergency Department, Merced, CA 95340. The listed phone number is (209) 564-5000.

What is Jason Antunez's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Jason Antunez enrolled in Medicare?

Yes. Jason Antunez is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Jason Antunez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jason Antunez reassigns Medicare benefits to 2 organizations: San Joaquin Emergency Medical Associates (Merced, CA) and Emergency Physician Services Of New York, P.C. (Poughkeepsie, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jason Antunez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Jason Antunez was last updated on April 9, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.