CONRAD MASSIMO VIAL (M.D.) – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1083726699

CONRAD MASSIMO VIAL (M.D.) is a healthcare provider. based in Los altos, California. specializing in CARDIAC SURGERY. They hold the professional credentials M.D.. They hold a License No. A60823 (CA). The NPI Number for CONRAD MASSIMO VIAL (M.D.) is 1083726699

Main info

Male
31 Years Of Experience
Accepts Medicare Assignment
Name
CONRAD MASSIMO VIAL (M.D.)
NPI
1083726699
Phone
Not provided
Address
325 DISTEL CIR
Enumeration Date
31 August 2006
Last Update Date
18 February 2020

Doctor Profile

Medical School Name
STANFORD UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
6508535745
Graduation Year
1995 (31 years ago)
PAC ID
4183650591
Group Practice PAC ID
4284538778
Professional Enrollment ID
I20050715000897
Address ID
CA940622851RE2900XAVEX303
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience62
Completeness75
Years active:19State licenses:1Digital endpointsOther names

262 CARDIAC SURGERY in CA

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Provider Addresses for CONRAD MASSIMO VIAL (M.D.)

  • 325, Distel Circle, Los Altos, Santa Clara County, California, 94022, United States

    LOS ALTOS, CA 940221408

    Phone:

    Type: Mailing

  • Van Ness Avenue, Hayes Valley, San Francisco, California, 94102, United States

    SAN FRANCISCO, CA 941096978

    Phone: (415) 600-5780

    Fax: (650) 853-2929

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $157.

Total Amount is formed as General ($157) + Research ($0) + Ownership ($0) = $157.

Last reported payment date: 2024-10-28 • Largest payer in this snapshot: Medtronic, Inc. ($157).

Total Amount

$157

General + Research + Ownership

Payments

1

Total payment records

General Amount

$157

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-10-28

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Medtronic, Inc.$157
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-07-15

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20050715000897ICardiac SurgeryCATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99205New patient office or other outpatient visit, 60-74 minutes2424$0
33361Replacement of aortic valve through the skin and femoral artery1818$0
View full utilization report →

Insurance plans in this area (ZIP 94022)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4284538778View full group profile
NameSpecialtyState
D E R M A T O L O G YCA
A L L E R G Y/ I M M U N O L O G YCA
-CA
Hospitalist, Obstetrics/GynecologyCA
O B S T E T R I C S/ G Y N E C O L O G YOR
-CA
-CA
-CA
-CA
A N E S T H E S I O L O G YCA

Reviews

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Frequently asked questions

What number should I use to identify CONRAD MASSIMO VIAL (M.D.) for billing?
Administrative and clinical systems typically use NPI 1083726699 for CONRAD MASSIMO VIAL (M.D.).
Is CONRAD MASSIMO VIAL (M.D.) currently accepting referrals based on NPI status?
Registry metadata lists CONRAD MASSIMO VIAL (M.D.) as active.
What services align with CONRAD MASSIMO VIAL (M.D.)'s listing?
CONRAD MASSIMO VIAL (M.D.)'s public classification highlights Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician. Clinical services aligned with this taxonomy classification.
Can patients visit CONRAD MASSIMO VIAL (M.D.) in Los Altos, California?
For routing, start with Los Altos, California for CONRAD MASSIMO VIAL (M.D.), then verify phone and hours locally.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.

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