DR. LEONARD SIMON FAGAN (M.D.) – Obstetrics & Gynecology Physician, NPI 1104812171

DR. LEONARD SIMON FAGAN (M.D.) is a healthcare provider. based in Milwaukee, Wisconsin. specializing in Obstetrics & Gynecology Physician. They hold the professional credentials M.D.. They hold a License No. 46372-020 (WI). The NPI Number for DR. LEONARD SIMON FAGAN (M.D.) is 1104812171

Main info

Male
42 Years Of Experience
Accepts Medicare Assignment
Name
DR. LEONARD SIMON FAGAN (M.D.)
NPI
1104812171
Phone
(414) 389-2233
Address
3301 W FOREST HOME AVE
Enumeration Date
23 September 2005
Last Update Date
3 October 2022

Doctor Profile

Medical School Name
RUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Secondary Phone
2626979200
Graduation Year
1984 (42 years ago)
PAC ID
1658356191
Group Practice PAC ID
6709794258
Professional Enrollment ID
I20040621000416

Contacts

FHIR Endpoint
https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
Secure Messaging
lfagan244443@direct.myadvocateaurora.org
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience82
Completeness85
Years active:20State licenses:3Other namesUpdated within 12 months

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Provider Addresses for DR. LEONARD SIMON FAGAN (M.D.)

  • 3301,3305, West Forest Home Avenue, Layton Park, Milwaukee, Milwaukee County, Wisconsin, 53215, United States

    MILWAUKEE, WI 532152843

    Phone: (414) 389-2233

    Type: Mailing

  • 74th Street, Forest Park, Kenosha, Kenosha County, Wisconsin, 53142, United States

    SUITE 200

    KENOSHA, WI 531426800

    Phone: (262) 697-9200

    Fax: (262) 697-9206

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

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: 2022-09-16

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
I20220916000974IObstetrics/GynecologyFLTBD

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 53215)

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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: 6709794258View full group profile

Reviews

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Frequently asked questions

Can I use this page to confirm DR. LEONARD SIMON FAGAN (M.D.)'s NPI?
Yes. DR. LEONARD SIMON FAGAN (M.D.) is listed with NPI 1104812171 in the public NPI dataset.
Does CMS list DR. LEONARD SIMON FAGAN (M.D.) as active?
Yes — DR. LEONARD SIMON FAGAN (M.D.) is active in the NPI listing used on this page.
What is DR. LEONARD SIMON FAGAN (M.D.)'s primary classification?
Obstetrics & Gynecology Physician is the headline specialty for DR. LEONARD SIMON FAGAN (M.D.) here. Clinical services aligned with this taxonomy classification.
What address line appears for DR. LEONARD SIMON FAGAN (M.D.)?
DR. LEONARD SIMON FAGAN (M.D.)'s geographic hint is Milwaukee, Wisconsin in our summary view.
Is specialty guaranteed by NPI alone?
Taxonomy selections describe intent; scope of practice still follows state law.

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