MAX A CAYO (MD, PHD) – Student in an Organized Health Care Education/Training Program, NPI 1083106975

MAX A CAYO (MD, PHD) is a healthcare provider. based in Milwaukee, Wisconsin. specializing in GENERAL SURGERY. They hold the professional credentials MD, PHD. The NPI Number for MAX A CAYO (MD, PHD) is 1083106975

Main info

Male
8 Years Of Experience
Accepts Medicare Assignment
Name
MAX A CAYO (MD, PHD)
NPI
1083106975
Phone
(414) 793-7040
Address
4773 N OAKLAND AVE
Enumeration Date
6 June 2018
Last Update Date
6 June 2018

Doctor Profile

Medical School Name
MEDICAL COLLEGE OF WISCONSIN
Secondary Phone
9708249411
Graduation Year
2018 (8 years ago)
PAC ID
4587917620
Group Practice PAC ID
1254231533
Professional Enrollment ID
I20260212000369
Address ID
CO816258750CR750XXLOOP300
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience21
Completeness75
Years active:8State licenses:0Digital endpointsOther names

2,644 GENERAL SURGERY in TX

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Provider Addresses for MAX A CAYO (MD, PHD)

  • 4773, North Oakland Avenue, Whitefish Bay, Milwaukee County, Wisconsin, 53211, United States

    MILWAUKEE, WI 532111234

    Phone: (414) 793-7040

    Type: Mailing

  • Baylor University Medical Center, 3500, Gaston Avenue, Old East Dallas, Dallas, TX, Dallas, Dallas County, Texas, 75246, United States

    DALLAS, TX 752462017

    Phone: (214) 820-2361

    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 $30.

Total Amount is formed as General ($30) + Research ($0) + Ownership ($0) = $30.

Last reported payment date: 2023-11-09 • Largest payer in this snapshot: Dilon Technologies, Inc. ($30).

Total Amount

$30

General + Research + Ownership

Payments

1

Total payment records

General Amount

$30

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-11-09

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Dilon Technologies, Inc.$30
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: 2026-02-12

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
I20260212000369IGeneral SurgeryCOTBD

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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 53211)

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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: 1254231533View full group profile
NameSpecialtyState
Physician AssistantCO
Physician AssistantCO
-CO
-CO
Physician AssistantNV
Clinical Social WorkerCO
Family PracticeCO
-CO
Physician AssistantOK
Family PracticeCO

Reviews

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Frequently asked questions

What number should I use to identify MAX A CAYO (MD, PHD) for billing?
Administrative and clinical systems typically use NPI 1083106975 for MAX A CAYO (MD, PHD).
Is MAX A CAYO (MD, PHD) currently accepting referrals based on NPI status?
Registry metadata lists MAX A CAYO (MD, PHD) as active.
How should patients interpret MAX A CAYO (MD, PHD)'s specialty?
The extract shows Student in an Organized Health Care Education/Training Program for MAX A CAYO (MD, PHD). Clinical services aligned with this taxonomy classification.
Is MAX A CAYO (MD, PHD) tied to Milwaukee, Wisconsin?
If you are local to Milwaukee, Wisconsin, MAX A CAYO (MD, PHD) may be relevant to your search.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.

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