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DR. CARLOS ANTONIO RIVAS M.D.
NPI 1285066878
Internal Medicine in Redwood City, CA

Active since August 06, 2013Opted out of Medicare · through Apr 29, 2028
300 TADLEY CT, REDWOOD CITY, CA 94061(510) 437-4800 Get Directions Write a Review

NPPES record last updated: June 9, 2019. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 9, 2019, Mar 17, 2018, Dec 7, 2017 (3 updates tracked since 2017).

About Dr. Carlos Antonio Rivas M.d. NPPES

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

DR. CARLOS ANTONIO RIVAS M.D. (NPI 1285066878) is an individual internal medicine provider in Redwood City, California, licensed in California (131589) and active in the NPI registry since August 2013. He has opted out of Medicare through April 29, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1285066878
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CARLOS ANTONIO RIVASCredential: M.D.
Location Address300 TADLEY CTRedwood City, CA 94061-4305
Mailing Address300 Tadley CtRedwood City, CA 94061-4305 · (510) 437-0371
Phone(510) 437-4800
Sole ProprietorYes
Enumeration DateAugust 6, 2013
Last NPPES UpdateJune 9, 20193 updates tracked since enumeration
✔ NPI 1285066878 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · 131589
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
300 TADLEY CT, Redwood City, CA 94061
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

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Opted out of Medicare

Dr. Carlos Antonio Rivas M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 29, 2020 through April 29, 2028.

Opt-Out Effective DateApril 29, 2020
Opt-Out In Effect ThroughApril 29, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94061 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

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 Rivas's NPI number?

The NPI number for Carlos Rivas is 1285066878. It was assigned to this individual provider in the NPPES registry on August 6, 2013.

Where is Carlos Rivas located?

Carlos Rivas practices at 300 Tadley Ct, Redwood City, CA 94061. The listed phone number is (510) 437-4800.

What is Carlos Rivas's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Carlos Rivas enrolled in Medicare?

No. Carlos Rivas has opted out of Medicare through April 29, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

What insurance does Carlos Rivas accept?

Health plans from Molina Healthcare list Carlos Rivas 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.

When was this NPI record last updated?

The NPPES record for Carlos Rivas was last updated on June 9, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.