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MICHAEL A HERRERA DO
NPI 1104910744
Emergency Medicine - Emergency Medical Services in Stockton, CA

Active since October 03, 2006PECOS Enrolled
1800 NO CALIFORNIA STREET, STOCKTON, CA 95204(209) 473-6555(209) 473-6544 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Michael A Herrera Do NPPES

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

MICHAEL A HERRERA DO (NPI 1104910744) is an individual emergency medical services provider in Stockton, California, licensed in California (20A6617) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1104910744
Entity TypeIndividualMale
Primary Taxonomy207PE0004X
Provider Legal NameMICHAEL A HERRERACredential: DO
Location Address1800 NO CALIFORNIA STREETStockton, CA 95204-0000
Mailing Address3116 W March Lane, Suite 200Stockton, CA 95219-2370 · (209) 473-6555 · Fax (209) 473-6544
Phone(209) 473-6555
Fax(209) 473-6544
Sole ProprietorNo
Enumeration DateOctober 3, 2006
Last NPPES UpdateJuly 9, 2007
✔ NPI 1104910744 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency Medicine · Emergency Medical ServicesAllopathic & Osteopathic Physicians
Taxonomy Code207PE0004X
License✔ Licensed in CA · 20A6617
Definition
An emergency medicine physician who specializes in non-hospital based emergency medical services (e.g., disaster site, accident scene, transport vehicle, etc.) to provide pre-hospital assessment, treatment, and transport patients.
1800 NO CALIFORNIA STREET, Stockton, CA 95204
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Other Identifiers 2

Other20A6617CA · Osteopathic Ca License
Medicare UPING06004CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael A Herrera Do 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 Reassignment

Medicare enrollment records show Michael Herrera reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

San Francisco Physicians International Medical Group, Inc
37 mi
Emergency Medicine
6001 NORRIS CANYON RD
San Ramon, CA 94583
  • Reassigned Medicare billing, California enrollment
  • 168 clinicians in this Medicare group
NPI 1841220720 (925) 275-9200

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 95204 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 2

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

ELLISON H CORDRAY MD
Emergency Medicine (Emergency Medical Services)
1800 NO CALIFORNIA STREET
STOCKTON, CA 95204
San Joaquin County (209) 473-6555
ERNEST R ALMENDAREZ MD
Emergency Medicine (Emergency Medical Services)
1800 NO CALIFORNIA STREET
STOCKTON, CA 95204
San Joaquin County (209) 473-6555

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 Michael Herrera's NPI number?

The NPI number for Michael Herrera is 1104910744. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is Michael Herrera located?

Michael Herrera practices at 1800 No California Street, Stockton, CA 95204. The listed phone number is (209) 473-6555.

What is Michael Herrera's specialty?

The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.

Is Michael Herrera enrolled in Medicare?

Yes. Michael Herrera is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Michael Herrera's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Herrera reassigns Medicare benefits to San Francisco Physicians International Medical Group, Inc (San Ramon, CA). The 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 Michael Herrera'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 Michael Herrera was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.