DR. MICHAEL G OLACIREGUI (M.D.) – Internal Medicine Physician, NPI 1811094972

DR. MICHAEL G OLACIREGUI (M.D.) is a healthcare provider. based in Milwaukee, Wisconsin. specializing in INTERNAL MEDICINE. They hold the professional credentials M.D.. They hold a License No. 42851-020 (WI). The NPI Number for DR. MICHAEL G OLACIREGUI (M.D.) is 1811094972

Main info

Male
42 Years Of Experience
Accepts Medicare Assignment
Name
DR. MICHAEL G OLACIREGUI (M.D.)
NPI
1811094972
Phone
(414) 962-9070
Address
PO BOX 11430
Enumeration Date
20 September 2006
Last Update Date
8 July 2007

Doctor Profile

Medical School Name
OTHER
Secondary Phone
4146456665
Graduation Year
1984 (42 years ago)
PAC ID
0840238762
Group Practice PAC ID
5698856375
Professional Enrollment ID
I20050503000225
Address ID
WI532042267MI1238XDRXX600
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

2,941 INTERNAL MEDICINE in WI

Loading map...

Provider Addresses for DR. MICHAEL G OLACIREGUI (M.D.)

  • PO BOX 11430

    MILWAUKEE, WI 532110430

    Phone: (414) 962-9070

    Fax: (414) 962-9050

    Type: Mailing

  • 573,573A,573B, West Lincoln Avenue, Lincoln Village, Milwaukee, Milwaukee County, Wisconsin, 53207, United States

    MILWAUKEE, WI 532071141

    Phone: (414) 385-9801

    Fax: (414) 385-9803

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

CMS reports 57 Open Payments records for all available years, with a total value of $1,064.

Total Amount is formed as General ($1,064) + Research ($0) + Ownership ($0) = $1,064.

Last reported payment date: 2024-11-21 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($372).

Total Amount

$1,064

General + Research + Ownership

Payments

57

Total payment records

General Amount

$1,064

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-21

Latest reported date

Top Companies

Largest payers in this snapshot

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: 2005-05-03

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
I20050503000225IInternal MedicineWITBD

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
99215Established patient office or other outpatient visit, 40-54 minutes4012$0
82962Blood glucose (sugar) test performed by hand-held instrument3911$0
View full utilization report →

Insurance plans in this area (ZIP 53211)

Loading plans...

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: 5698856375View full group profile
NameSpecialtyState
N E U R O S U R G E R YWI
N E U R O L O G YWI
Physician AssistantWI
Internal Medicine, Pediatric MedicineWI

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What federal number belongs to DR. MICHAEL G OLACIREGUI (M.D.)?
The federal identifier for DR. MICHAEL G OLACIREGUI (M.D.) is NPI 1811094972.
Is DR. MICHAEL G OLACIREGUI (M.D.)'s NPI currently valid?
The extract we use shows DR. MICHAEL G OLACIREGUI (M.D.) as active.
What does DR. MICHAEL G OLACIREGUI (M.D.) treat or focus on?
Patients typically see DR. MICHAEL G OLACIREGUI (M.D.) under the specialty Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
Where is DR. MICHAEL G OLACIREGUI (M.D.)'s primary listing?
We display Milwaukee, Wisconsin because that is what the record indicates for DR. MICHAEL G OLACIREGUI (M.D.).
How can I contact DR. MICHAEL G OLACIREGUI (M.D.)?
Phone or fax may appear on the official NPI record when supplied — verify before relying on them.

Similar Providers

ANTHONY C DE FRANCO (M.D.)

Cardiovascular Disease Physician
9200 W WISCONSIN AVE
NPI: 1215930391

JONATHAN A ZLABEK (MD)

Internal Medicine Physician
1836, South Avenue, La Crosse, La Crosse County, Wisconsin, 54601, United States
NPI: 1881698496

MARIANA RINCON (M.D., M.P.H.)

Internal Medicine Physician
Chavez Clinic, 1032, South Cesar E Chavez Drive, Clarke Square, Milwaukee, Milwaukee County, Wisconsin, 53204, United States
NPI: 1811993330

MOISES A GARCIA (MD)

Transplant Hepatology Physician
Aurora Saint Luke's Medical Center, 2900, West Oklahoma Avenue, Southgate, Milwaukee, Milwaukee County, Wisconsin, 53215, United States
NPI: 1386640811

JULIE B SCHULLER (M.D., MPH)

Internal Medicine Physician
Chavez Clinic, 1032, South Cesar E Chavez Drive, Clarke Square, Milwaukee, Milwaukee County, Wisconsin, 53204, United States
NPI: 1184620528

DR. JOSE ALBERTO B SALAZAR (M.D.)

Internal Medicine Physician
PO BOX 78866
NPI: 1629074216

SUNITHA NAIR (MD)

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician
West Kinnickinnic River Parkway, Southgate, Milwaukee, Milwaukee County, Wisconsin, 53215, United States
NPI: 1689672933