MRS. TAMMY S. ZWEERES APN
NPI 1255690574
Nurse Practitioner in Romeoville, IL

Active since May 07, 2012PECOS EnrolledAccepts Medicare Assignment
500 S WEBER RD, ROMEOVILLE, IL 60446(815) 773-7732 Get Directions Write a Review

NPPES record last updated: June 3, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 3, 2025, Aug 15, 2023, Jul 12, 2023 and 2 more (5 updates tracked since 2017).

About Mrs. Tammy S. Zweeres Apn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. TAMMY S. ZWEERES APN (NPI 1255690574) is an individual nurse practitioner in Romeoville, Illinois, licensed in Illinois (277004182) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS, is affiliated with Presence Saint Joseph Medical Center, and maintains a secondary practice location in Chicago.

NPPES Registry Identity

NPI1255690574
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMRS. TAMMY S. ZWEERESCredential: APN
Location Address500 S WEBER RDRomeoville, IL 60446-6528
Mailing Address500 S Weber RdRomeoville, IL 60446-6528 · (815) 773-7732
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateMay 7, 2012
Last NPPES UpdateJune 3, 20255 updates tracked since enumeration
NPPES CertifiedJune 3, 2025
NPI 1255690574 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License Licensed in IL · 277004182
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 209009537 (IL)
500 S WEBER RD, Romeoville, IL 60446

Secondary Practice Location 1

Location 1111 W Jackson BlvdChicago, IL 60604-3589 · Phone (888) 731-8994

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mrs. Tammy S. Zweeres Apn is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3577728203
PECOS Enrollment IDI20120703000331
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
231 services53 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
136 services60 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
28 services13 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Presence Saint Joseph Medical Center

Acute Care Hospitals · Joliet, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140007
Location333 N Madison StJoliet, IL 60435 · Will County
Emergency services Birthing friendly

Morris Hospital & Healthcare Centers

Acute Care Hospitals · Morris, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140101
Location150 W High StMorris, IL 60450 · Grundy County
Emergency services Birthing friendly

Presence Mercy Medical Center

Acute Care Hospitals · Aurora, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140174
Location1325 N Highland AvenueAurora, IL 60506 · Kane County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60446 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Family)
500 S WEBER RD
ROMEOVILLE, IL 60446
Internal Medicine (Hematology & Oncology)
500 S WEBER RD
ROMEOVILLE, IL 60446
Physician Assistant
500 S WEBER RD
ROMEOVILLE, IL 60446
Internal Medicine
500 S WEBER RD
ROMEOVILLE, IL 60446
Internal Medicine
500 S WEBER RD
ROMEOVILLE, IL 60446
Registered Nurse (Critical Care Medicine)
500 S WEBER RD
ROMEOVILLE, IL 60446
Clinic/Center (Radiology)
500 S WEBER RD
ROMEOVILLE, IL 60446

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Tammy Zweeres's NPI number?

The NPI number for Tammy Zweeres is 1255690574. It was assigned to this individual provider in the NPPES registry on May 7, 2012.

Where is Tammy Zweeres located?

Tammy Zweeres practices at 500 S Weber Rd, Romeoville, IL 60446. The listed phone number is (815) 773-7732.

What is Tammy Zweeres's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Tammy Zweeres enrolled in Medicare?

Yes. Tammy Zweeres is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Tammy Zweeres accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Tammy Zweeres as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Tammy Zweeres affiliated with any hospitals?

According to CMS data, Tammy Zweeres is affiliated with Presence Saint Joseph Medical Center, Morris Hospital & Healthcare Centers and Presence Mercy Medical Center.

When was this NPI record last updated?

The NPPES record for Tammy Zweeres was last updated on June 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.