DR. ANDRES EDUARDO MENDEZ-HERNANDEZ M.D.
NPI 1487006813
Internal Medicine - Hematology & Oncology in Stanford, CA

Q: What is Andres Mendez-hernandez's NPI number?

The NPI number for Andres Mendez-hernandez is 1487006813. It was assigned to this individual provider in the NPPES registry on July 11, 2016.

Q: What is Andres Mendez-hernandez's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Active since July 11, 2016PECOS EnrolledAccepts Medicare Assignment

300 PASTEUR DR, STANFORD, CA 94305(650) 723-0822 Get Directions Write a Review

NPPES record last updated: August 11, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 11, 2023, Jul 10, 2020, Jun 23, 2020 and 1 more (4 updates tracked since 2016).

On this page

About Dr. Andres Eduardo Mendez-hernandez M.d. NPPES

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

DR. ANDRES EDUARDO MENDEZ-HERNANDEZ M.D. (NPI 1487006813) is an individual hematology & oncology provider in Stanford, California, licensed in California (A188614) and active in the NPI registry since July 2016. He is enrolled in Medicare PECOS, is affiliated with Sioux Center Health, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1487006813

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. ANDRES EDUARDO MENDEZ-HERNANDEZCredential: M.D.

Location Address300 PASTEUR DRStanford, CA 94305-2200

Mailing Address300 Pasteur Dr Rm H0101Stanford, CA 94305-2200 · (650) 723-0822

Phone(650) 723-0822

Sole ProprietorNo

Medical School CMSOtherGraduated 2011

Enumeration DateJuly 11, 2016

Last NPPES UpdateAugust 11, 20234 updates tracked since enumeration

NPPES CertifiedJuly 13, 2023

✔ NPI 1487006813 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in CA · A188614

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedInternal MedicineTaxonomy 207R00000X · License 125068361 (IL)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License RS2020-0510 (NM)

300 PASTEUR DR, Stanford, CA 94305

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Secondary Practice Locations 2

Location 1Msc (Internal M) 1 University Of New Mexico AlbuquerqueAlbuquerque, NM 87131-0001 · Phone (505) 272-4661 · Fax (505) 272-4628

Location 21901 W Harrison StChicago, IL 60612-3714 · Phone (312) 864-6000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Sunflower Health Plan, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Andres Eduardo Mendez-hernandez M.d. 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 ID4385937804

PECOS Enrollment IDI20240919000962

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 Andres Mendez-hernandez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Avera Mckennan

1,234 mi

Multi-Specialty

100 MAC LN
Pierre, SD 57501

Reassigned Medicare billing, South Dakota enrollment
1,277 clinicians in this Medicare group

NPI 1780829283 (605) 224-5901

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 3

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.

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

45 services45 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

26 services12 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

23 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Sioux Center Health

Critical Access Hospitals · Sioux Center, IA

OwnershipVoluntary non-profit - Private

CMS Certification Number161346

Location1101 9th Street SESioux Center, IA 51250 · Sioux County

Emergency services

Avera Marshall Regional Medical Ctr

Critical Access Hospitals · Marshall, MN

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number241359

Location300 South Bruce StreetMarshall, MN 56258 · Lyon County

Emergency services

Avera St Mary's Hospital

Acute Care Hospitals · Pierre, SD

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number430015

Location801 E SiouxPierre, SD 57501 · Hughes County

Emergency services Birthing friendly

Avera Mckennan Hospital & University Health Center

Acute Care Hospitals · Sioux Falls, SD

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number430016

Location1325 S Cliff AveSioux Falls, SD 57117 · Minnehaha County

Emergency services Birthing friendly

Avera Queen Of Peace

Critical Access Hospitals · Mitchell, SD

OwnershipVoluntary non-profit - Private

CMS Certification Number431340

Location525 N FosterMitchell, SD 57301 · Davison 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

$206.04 typical visit price

range $70.37 – $206.04

Typical copayment $51.51 (range $17.59 – $51.51)

Most-billed visit code 99205

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 Andres Mendez-hernandez's NPI number?

The NPI number for Andres Mendez-hernandez is 1487006813. It was assigned to this individual provider in the NPPES registry on July 11, 2016.

Where is Andres Mendez-hernandez located?

Andres Mendez-hernandez practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-0822.

What is Andres Mendez-hernandez's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Andres Mendez-hernandez enrolled in Medicare?

Yes. Andres Mendez-hernandez 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.

Which organization bills Medicare for Andres Mendez-hernandez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andres Mendez-hernandez reassigns Medicare benefits to Avera Mckennan (Pierre, SD). 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 Andres Mendez-hernandez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Andres Mendez-hernandez accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Avera Health Plans and Wellmark Health Plan of Iowa, Inc. and 1 other insurer list Andres Mendez-hernandez as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Andres Mendez-hernandez affiliated with any hospitals?

According to CMS data, Andres Mendez-hernandez is affiliated with Sioux Center Health, Avera Marshall Regional Medical Ctr, Avera St Mary's Hospital, Avera Mckennan Hospital & University Health Center and Avera Queen Of Peace.

When was this NPI record last updated?

The NPPES record for Andres Mendez-hernandez was last updated on August 11, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.