DR. NICHOLAS RAUL LOPEZ M.D.
NPI 1932231503
Emergency Medicine in Napa, CA

Q: What is Nicholas Lopez's NPI number?

The NPI number for Nicholas Lopez is 1932231503. It was assigned to this individual provider in the NPPES registry on March 9, 2007.

Q: What is Nicholas Lopez's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Nicholas Lopez was last updated on January 7, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.

Active since March 09, 2007PECOS Enrolled

80.67/100

CMS Quality Rating

1000 TRANCAS ST, NAPA, CA 94558(707) 252-4411 Get Directions Write a Review

NPPES record last updated: January 7, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Nicholas Raul Lopez M.d. NPPES

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

DR. NICHOLAS RAUL LOPEZ M.D. (NPI 1932231503) is an individual emergency medicine provider in Napa, California, licensed in California (A100996) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932231503

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameDR. NICHOLAS RAUL LOPEZCredential: M.D.

Location Address1000 TRANCAS STNapa, CA 94558-2906

Mailing Address741 Amherst CirSonoma, CA 95476-4107 · (707) 343-1533

Phone(707) 252-4411

Sole ProprietorNo

Enumeration DateMarch 9, 2007

Last NPPES UpdateJanuary 7, 2011

✔ NPI 1932231503 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 · A100996

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 ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1000 TRANCAS ST, Napa, CA 94558

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Other Identifiers 2

Medicare PINBW445YCA

Medicaid1932231503CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Nicholas Raul Lopez 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 Reassignment

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

Napa Valley Emergency Medical Group

Same address

Emergency Medicine

1000 TRANCAS ST
Napa, CA 94558

Reassigned Medicare billing, California enrollment
53 clinicians in this Medicare group

NPI 1467463539 (818) 340-9988

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 5

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.

310 services297 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.

210 services199 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.

152 services149 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.

78 services77 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.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94558 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

$98.97 typical visit price

range $65.08 – $192.16

Typical copayment $24.74 (range $16.27 – $48.04)

Most-billed visit code 99203

Established Patient

$113.15 typical visit price

range $21.86 – $157.83

Typical copayment $28.28 (range $5.46 – $39.45)

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.

80.67/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

70.08

Improvement Activities

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.

ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC

General Acute Care Hospital

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 252-4411

MICHAEL V. WAGNER MD

Obstetrics & Gynecology

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 252-4411

ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC

General Acute Care Hospital

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 252-4411

ALYSSA MARIE CHIONGLO PHARMD, BCPS

Pharmacist

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 257-4048

VINEYARD PATHOLOGY ASSOCIATES INC

Pathology (Anatomic Pathology & Clinical Pathology)

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 257-4076

AMIR BEHZAD RAZAVI M.D.

Hospitalist

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 251-3518

M. ATCHISON CRNA INC, A PROFESSIONAL NURSING CORP.

Nurse Anesthetist, Certified Registered

1000 TRANCAS ST, QUEEN OF THE VALLEY HOSPITAL
NAPA, CA 94558

Napa County (707) 228-2901

LAWRENCE THOMPSON MD

Pathology (Anatomic Pathology & Clinical Pathology)

1000 TRANCAS ST
NAPA, CA 94558

Napa County (707) 252-4411

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 Nicholas Lopez's NPI number?

The NPI number for Nicholas Lopez is 1932231503. It was assigned to this individual provider in the NPPES registry on March 9, 2007.

Where is Nicholas Lopez located?

Nicholas Lopez practices at 1000 Trancas St, Napa, CA 94558. The listed phone number is (707) 252-4411.

What is Nicholas Lopez's specialty?

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

Is Nicholas Lopez enrolled in Medicare?

Yes. Nicholas Lopez is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Nicholas Lopez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Lopez reassigns Medicare benefits to Napa Valley Emergency Medical Group (Napa, 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 Nicholas Lopez'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 Nicholas Lopez was last updated on January 7, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.