MR. BRENNAN CHESSHER (MSN, RN) – Primary Care Nurse Practitioner, NPI 1598522708

MR. BRENNAN CHESSHER (MSN, RN) is a healthcare provider. based in Chicago, Illinois. specializing in NURSE PRACTITIONER. They hold the professional credentials MSN, RN. They hold a License No. APRN11031963 (FL). The NPI Number for MR. BRENNAN CHESSHER (MSN, RN) is 1598522708

Main info

Male
Sole Proprietor
3 Years Of Experience
Accepts Medicare Assignment
Name
MR. BRENNAN CHESSHER (MSN, RN)
NPI
1598522708
Phone
(702) 899-0595
Address
PO BOX 7410884
Enumeration Date
4 March 2024
Last Update Date
3 October 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
3126350973
Graduation Year
2023 (3 years ago)
PAC ID
8123468600
Group Practice PAC ID
4486997426
Professional Enrollment ID
I20240501001226
Address ID
FL337026810ST521XXNXXX400
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience28
Completeness85
Years active:2State licenses:1Digital endpointsOther names

24,232 NURSE PRACTITIONER in FL

Provider Addresses for MR. BRENNAN CHESSHER (MSN, RN)

  • PO BOX 7410884

    CHICAGO, IL 606740884

    Phone: (702) 899-0595

    Fax: (702) 977-1496

    Type: Mailing

  • 8041 STATE ROAD 52

    HUDSON, FL 346676726

    Phone: (872) 231-3162

    Fax: (702) 977-1496

    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: 2024-05-01

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
I20240501001226INurse PractitionerFLTBD

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 60674)

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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: 4486997426View full group profile
NameSpecialtyState
-FL
Nurse PractitionerFL
Nurse PractitionerIL
Physical Medicine And RehabilitationFL
Nurse PractitionerFL
Nurse PractitionerFL
Nurse PractitionerIL
Nurse PractitionerFL
Nurse PractitionerFL
Physical Medicine And RehabilitationFL

Reviews

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Frequently asked questions

Can I cross-check MR. BRENNAN CHESSHER (MSN, RN) using NPI 1598522708?
NPI 1598522708 belongs to MR. BRENNAN CHESSHER (MSN, RN); compare other details if you need extra assurance.
Would MR. BRENNAN CHESSHER (MSN, RN) appear as active to a payer?
You can treat MR. BRENNAN CHESSHER (MSN, RN) as active for directory purposes; confirm clinical privileges separately.
What expertise is attributed to MR. BRENNAN CHESSHER (MSN, RN)?
MR. BRENNAN CHESSHER (MSN, RN)'s specialty line reads Primary Care Nurse Practitioner. Clinical services aligned with this taxonomy classification.
What locale is associated with MR. BRENNAN CHESSHER (MSN, RN)?
Directory geography for MR. BRENNAN CHESSHER (MSN, RN) centers on Chicago, Illinois.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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