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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CARLOS IVAN ENCISO LOPEZ MD
NPI 1841866399
Emergency Medicine in Stanford, CA

Active since June 03, 2021PECOS EnrolledAccepts Medicare Assignment
300 PASTEUR DR, STANFORD, CA 94305(650) 723-5948 Get Directions Write a Review

NPPES record last updated: July 29, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Jul 29, 2026, Sep 13, 2025, Jun 3, 2021 (3 updates tracked since 2021).

About Carlos Ivan Enciso Lopez Md NPPES

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

CARLOS IVAN ENCISO LOPEZ MD (NPI 1841866399) is an individual emergency medicine provider in Stanford, California, licensed in Michigan (4301512806) and active in the NPI registry since June 2021. He is enrolled in Medicare PECOS, is affiliated with Osf St Francis Hospital And Medical Group, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1841866399
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameCARLOS IVAN ENCISO LOPEZCredential: MD
Location Address300 PASTEUR DRStanford, CA 94305-2200
Mailing Address300 Pasteur DrStanford, CA 94305-2200
Phone(650) 723-5948
Sole ProprietorYes
Medical School CMSUniversity Of Washington School Of MedicineGraduated 2021
Enumeration DateJune 3, 2021
Last NPPES UpdateJuly 29, 20263 updates tracked since enumeration
NPPES CertifiedJuly 29, 2026
✔ NPI 1841866399 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 MI · 4301512806
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 ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License A203750 (CA)
300 PASTEUR DR, Stanford, CA 94305
Open in Google Maps ↗

Secondary Practice Locations 2

Location 13401 Ludington StEscanaba, MI 49829-1300 · Phone (906) 786-5707
Location 21100 Veterans BlvdRedwood City, CA 94063-2037 · Phone (650) 299-2000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Carlos Ivan Enciso Lopez Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7012318710
PECOS Enrollment IDI20241202001474, I20260423001024
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Osf St Francis Hospital And Medical Group

Critical Access Hospitals · Escanaba, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number231337
Location3401 Ludington StEscanaba, MI 49829 · Delta County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94305 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
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
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.

PRISTA CHARUWORN MD
Internal Medicine (Gastroenterology)
300 PASTEUR DR, ALWAY BUILD M211, MC 5187
STANFORD, CA 94305
Santa Clara County (650) 723-6661
ANDREW CHARLES PICEL M.D
Radiology (Vascular & Interventional Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
MATTHEW A WRIGHT M.D. PH.D.
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
DR. QUAZI ZUBAIR AL-TARIQ M.D.
Radiology (Diagnostic Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
ANGIE DEE MURKINS NP
Nurse Practitioner
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
DR. JAMSHID GHAJAR MD PHD
Neurological Surgery
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
SARA BAKHTARY M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
300 PASTEUR DR, LANE 235
STANFORD, CA 94305
Santa Clara County (650) 723-5252
YU KUANG LAI MD
Internal Medicine (Critical Care Medicine)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000

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 Carlos Enciso Lopez's NPI number?

The NPI number for Carlos Enciso Lopez is 1841866399. It was assigned to this individual provider in the NPPES registry on June 3, 2021.

Where is Carlos Enciso Lopez located?

Carlos Enciso Lopez practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-5948.

What is Carlos Enciso Lopez's specialty?

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

Is Carlos Enciso Lopez enrolled in Medicare?

Yes. Carlos Enciso Lopez is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Carlos Enciso Lopez affiliated with any hospitals?

According to CMS data, Carlos Enciso Lopez is affiliated with Osf St Francis Hospital And Medical Group.

When was this NPI record last updated?

The NPPES record for Carlos Enciso Lopez was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 days 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.