DR. ROBERT J MARX MD
NPI 1073576351
General Practice in Los Gatos, CA

Active since April 08, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 05D0686959 · Waiver
14911 NATIONAL AVE, SUITE # 7, LOS GATOS, CA 95032(408) 358-3511(408) 358-0012 Get Directions Write a Review

NPPES record last updated: August 31, 2010. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Dr. Robert J Marx Md NPPES

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

DR. ROBERT J MARX MD (NPI 1073576351) is an individual general practice provider in Los Gatos, California, licensed in California (A30254) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through September 19, 2027, and is a graduate of Johns Hopkins University School Of Medicine (1975).

NPPES Registry Identity

NPI1073576351
Entity TypeIndividualMale
Primary Taxonomy208D00000X
Provider Legal NameDR. ROBERT J MARXCredential: MD
Location Address14911 NATIONAL AVE, SUITE # 7Los Gatos, CA 95032-2632
Mailing Address14911 National Ave, Suite # 7Los Gatos, CA 95032-2632 · (408) 358-3511 · Fax (408) 358-0012
Fax(408) 358-0012
Sole ProprietorYes
Medical School CMSJohns Hopkins University School Of MedicineGraduated 1975
Enumeration DateApril 8, 2006
Last NPPES UpdateAugust 31, 2010
NPI 1073576351 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License Licensed in CA · A30254
Definition

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

14911 NATIONAL AVE, Los Gatos, CA 95032

Other Identifiers 3

OtherA30254CA · State License
Medicare UPINA26022
Medicare ID-Type Unspecified00A302540CA

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

Dr. Robert J Marx 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 ID9133243983
PECOS Enrollment IDI20100831000215
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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0686959

Robert J Marx MD · Los Gatos, CA
Active · expires Sep 19, 2027
CLIA Number05D0686959
Laboratory TypePhysician Office
Certificate Effective DateSeptember 20, 2025
Certificate Expiration DateSeptember 19, 2027
Laboratory DirectorRobert J. Marx
Laboratory Phone(408) 358-3511
Laboratory LocationRobert J Marx MD14911 National Ave Suite 7, Los Gatos, CA 95032
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit, 20-29 minutes 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
410 services146 patients
Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous G0328
A fecal occult blood test is a screening tool for colorectal cancer. It checks for tiny amounts of blood in your stool that can't be seen with the naked eye. The immunoassay method can test 1-3 samples at once. This helps detect cancer early, when treatment is most effective.
97 services97 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
91 services89 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
83 services83 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
55 services55 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
55 services55 patients

Other Providers at the Same Location NPPES 13

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

Internal Medicine (Cardiovascular Disease)
14911 NATIONAL AVE, #1
LOS GATOS, CA 95032
Specialist
14911 NATIONAL AVE, SUITE 3
LOS GATOS, CA 95032
Internal Medicine
14911 NATIONAL AVE, SUITE 6
LOS GATOS, CA 95032
Internal Medicine
14911 NATIONAL AVE, SUITE 6
LOS GATOS, CA 95032
Obstetrics & Gynecology
14911 NATIONAL AVE, SUITE #4
LOS GATOS, CA 95032
Thoracic Surgery (Cardiothoracic Vascular Surgery)
14911 NATIONAL AVE, SUITE 6
LOS GATOS, CA 95032
Audiologist
14911 NATIONAL AVE, STE 2
LOS GATOS, CA 95032
Audiologist
14911 NATIONAL AVE, #2
LOS GATOS, CA 95032

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1073576351, enumerated as an "individual" on April 08, 2006.

The provider is located at 14911 NATIONAL AVE SUITE # 7 LOS GATOS, CA 95032 and the phone number is (408) 358-3511.

General Practice with taxonomy code 208D00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.