What is Sonia Mahmood's NPI number?

Sonia Mahmood's National Provider Identifier (NPI) is 1003273434, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sonia Mahmood's specialty?

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

Where is Sonia Mahmood located?

Sonia Mahmood's practice location on file with NPPES is 255 N Mclean Blvd, South Elgin, IL 60177-1800.

What is Sonia Mahmood's phone number?

The practice phone number listed in the NPPES registry for Sonia Mahmood is (866) 389-2727.

Does Sonia Mahmood accept Medicare?

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

Is Sonia Mahmood's NPI active?

Yes — Sonia Mahmood's NPI (1003273434) is active in the NPPES registry as of the last update on 2024-10-28.

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Sonia Mahmood, FNP-C

NPI 1003273434 · Family Nurse Practitioner · South Elgin, IL

Sonia Mahmood, FNP-C is a Family Nurse Practitioner provider in South Elgin, IL (NPI 1003273434).

Provider details

NPI number: 1003273434
Entity type: Individual
Primary specialty: Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Credential: FNP-C
Sex: Female
Sole proprietor: No
License: 041392408 (IL)

Practice location

255 N Mclean Blvd

South Elgin, IL 60177-1800

Phone: (866) 389-2727

Approximate (ZIP-level) locationGet directions

More IL providers

Mailing address

530 Randall Rd

South Elgin, IL 60177-3315

Specialties & taxonomies

Family Nurse PractitionerPrimary363LF0000XLicense 209013138 (IL)
Physician Assistants & Advanced Practice Nursing Providers
Registered Nurse163W00000XLicense 041392408 (IL)
Nursing Service 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: 2016-01-14
Last updated: 2024-10-28
Certified: 2024-10-28

Frequently asked questions

What is Sonia Mahmood's NPI number?: Sonia Mahmood's National Provider Identifier (NPI) is 1003273434, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Sonia Mahmood's specialty?: Sonia Mahmood is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
Where is Sonia Mahmood located?: Sonia Mahmood's practice location on file with NPPES is 255 N Mclean Blvd, South Elgin, IL 60177-1800.
What is Sonia Mahmood's phone number?: The practice phone number listed in the NPPES registry for Sonia Mahmood is (866) 389-2727.
Does Sonia Mahmood accept Medicare?: Sonia Mahmood is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Sonia Mahmood's NPI active?: Yes — Sonia Mahmood's NPI (1003273434) is active in the NPPES registry as of the last update on 2024-10-28.

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