What is Tammy Chavarria's NPI number?

Tammy Chavarria's National Provider Identifier (NPI) is 1043677529, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Tammy Chavarria's specialty?

Tammy Chavarria is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).

Where is Tammy Chavarria located?

Tammy Chavarria's practice location on file with NPPES is 2 Transam Plaza Dr Ste 400, Oakbrook Terrace, IL 60181-4808.

What is Tammy Chavarria's phone number?

The practice phone number listed in the NPPES registry for Tammy Chavarria is (630) 545-3766.

Does Tammy Chavarria accept Medicare?

Tammy Chavarria is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Tammy Chavarria's NPI active?

Yes — Tammy Chavarria's NPI (1043677529) is active in the NPPES registry as of the last update on 2021-01-06.

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Tammy Chavarria

NPI 1043677529 · Nurse Practitioner · Oakbrook Terrace, IL

Tammy Chavarria is a Nurse Practitioner provider in Oakbrook Terrace, IL (NPI 1043677529).

Provider details

NPI number: 1043677529
Entity type: Individual
Primary specialty: Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Sex: Female
Sole proprietor: No
License: 041303804 (IL)

Practice location

2 Transam Plaza Dr Ste 400

Oakbrook Terrace, IL 60181-4808

Phone: (630) 545-3766

Fax: (630) 933-7392

Street-level locationGet directions

More IL providers

Mailing address

2 Transam Plaza Dr Ste 400

Oakbrook Terrace, IL 60181-4808

Specialties & taxonomies

Nurse PractitionerPrimary363L00000XLicense 209005920 (IL)
Physician Assistants & Advanced Practice Nursing Providers
Ambulatory Women's Health Care Registered Nurse163WW0101XLicense 041303804 (IL)
Nursing Service Providers
Ambulatory Women's Health Care Registered Nurse163WW0101XLicense 28172884A (IN)
Nursing Service Providers
Women's Health Nurse Practitioner363LW0102XLicense 71002390A (IN)
Physician Assistants & Advanced Practice Nursing Providers
Women's Health Nurse Practitioner363LW0102XLicense 209005920 (IL)
Physician Assistants & Advanced Practice Nursing Providers

Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(73/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
10 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2016-01-28
Last updated: 2021-01-06
Certified: 2021-01-06

Frequently asked questions

What is Tammy Chavarria's NPI number?: Tammy Chavarria's National Provider Identifier (NPI) is 1043677529, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Tammy Chavarria's specialty?: Tammy Chavarria is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
Where is Tammy Chavarria located?: Tammy Chavarria's practice location on file with NPPES is 2 Transam Plaza Dr Ste 400, Oakbrook Terrace, IL 60181-4808.
What is Tammy Chavarria's phone number?: The practice phone number listed in the NPPES registry for Tammy Chavarria is (630) 545-3766.
Does Tammy Chavarria accept Medicare?: Tammy Chavarria is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Tammy Chavarria's NPI active?: Yes — Tammy Chavarria's NPI (1043677529) is active in the NPPES registry as of the last update on 2021-01-06.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions