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DR. ERIC M FIELDS DO
NPI 1972557502
Emergency Medicine in Ventura, CA

Active since May 19, 2006PECOS Enrolled
100/100
CMS Quality Rating
147 N BRENT ST, VENTURA, CA 93003(805) 948-8100 Get Directions Write a Review

NPPES record last updated: March 4, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Eric M Fields Do NPPES

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

DR. ERIC M FIELDS DO (NPI 1972557502) is an individual emergency medicine provider in Ventura, California, licensed in California (20A10519) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1972557502
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. ERIC M FIELDSCredential: DO
Location Address147 N BRENT STVentura, CA 93003-2854
Mailing Address1342 Ne 62nd StSeattle, WA 98115-6715
Phone(805) 948-8100
Sole ProprietorYes
Enumeration DateMay 19, 2006
Last NPPES UpdateMarch 4, 2020
NPPES CertifiedMarch 4, 2020
✔ NPI 1972557502 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · 20A10519
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 ListedEmergency Medicine · Emergency Medical ServicesTaxonomy 207PE0004X · License OP00001813 (WA)
147 N BRENT ST, Ventura, CA 93003
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Other Identifiers 1

Medicaid8323990WA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Eric M Fields 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 Eric Fields reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ventura Emergency Physicians
Same address
Emergency Medicine
147 N BRENT ST
Ventura, CA 93003
  • Reassigned Medicare billing, California enrollment
  • 28 clinicians in this Medicare group
NPI 1518298686 (805) 652-5051

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

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
451 services426 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
304 services282 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
113 services113 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
48 services48 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
23 services22 patients
Electrocardiogram (ecg) 1 to 3 leads with review by physician only 93042
An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. 1 to 3 leads or sensors are placed on your body to capture this data. A physician then reviews the results to evaluate your heart's health.
21 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93003 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
$95.28 typical visit price
range $62.32 – $185.36
Typical copayment $23.82 (range $15.58 – $46.34)
Most-billed visit code 99203
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality95.42
Improvement Activities40

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.

DR. DANIEL BLAINE ASAY M.D.
Anesthesiology
147 N BRENT ST
VENTURA, CA 93003
Ventura County (801) 722-8295
CORY ROBERT GALL DO
Student in an Organized Health Care Education/Training Program
147 N BRENT ST
VENTURA, CA 93003
Ventura County (805) 948-5672
DR. ETHAN SCOTT LIEBERMAN MD
Internal Medicine
147 N BRENT ST
VENTURA, CA 93003
Ventura County (818) 719-2706
BREANNA CAYWOOD DO
Student in an Organized Health Care Education/Training Program
147 N BRENT ST
VENTURA, CA 93003
Ventura County (805) 948-5677
SHEROSE DANIELLA RENCK M.S. CCC-SLP
Speech-Language Pathologist
147 N BRENT ST
VENTURA, CA 93003
Ventura County (805) 948-5011
SERENA GERMAIN
Physical Therapist
147 N BRENT ST
VENTURA, CA 93003
Ventura County (805) 948-5011
CHUNG NAN WANG, M.D., INC.
Anesthesiology
147 N BRENT ST
VENTURA, CA 93003
Ventura County (805) 652-5011
VIGILANT MEDICAL, INC.
Anesthesiology
147 N BRENT ST
VENTURA, CA 93003
Ventura 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 Eric Fields's NPI number?

The NPI number for Eric Fields is 1972557502. It was assigned to this individual provider in the NPPES registry on May 19, 2006.

Where is Eric Fields located?

Eric Fields practices at 147 N Brent St, Ventura, CA 93003. The listed phone number is (805) 948-8100.

What is Eric Fields's specialty?

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

Is Eric Fields enrolled in Medicare?

Yes. Eric Fields is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Eric Fields's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eric Fields reassigns Medicare benefits to Ventura Emergency Physicians (Ventura, 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 Eric Fields'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 Eric Fields was last updated on March 4, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.