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DR. LESLIE SPENCER MD
NPI 1316051097
Obstetrics & Gynecology - Gynecology in Hinsdale, IL

Active since August 18, 2006PECOS Enrolled
40 S CLAY ST # 100, HINSDALE, IL 60521(630) 920-2229(630) 920-8342 Get Directions Write a Review

NPPES record last updated: February 18, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 18, 2021, Feb 4, 2019 (2 updates tracked since 2019).

About Dr. Leslie Spencer Md NPPES

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

DR. LESLIE SPENCER MD (NPI 1316051097) is an individual gynecology provider in Hinsdale, Illinois, licensed in Illinois (03691693) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1316051097
Entity TypeIndividualFemale
Primary Taxonomy207VG0400X
Provider Legal NameDR. LESLIE SPENCERCredential: MD
Location Address40 S CLAY ST # 100Hinsdale, IL 60521-3257
Mailing Address1860 Paysphere CirChicago, IL 60674-0018
Phone(630) 920-2229
Fax(630) 920-8342
Sole ProprietorNo
Enumeration DateAugust 18, 2006
Last NPPES UpdateFebruary 18, 20212 updates tracked since enumeration
NPPES CertifiedFebruary 18, 2021
✔ NPI 1316051097 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207VG0400X
License✔ Licensed in IL · 03691693
Definition
A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions. Source: National Uniform Claim Committee
40 S CLAY ST # 100, Hinsdale, IL 60521
Open in Google Maps ↗

Other Identifiers 2

Medicaid036091693IL
OtherP00631958IL · Rr Medicare

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Leslie Spencer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Leslie Spencer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dupage Medical Group Ltd
4.4 mi
Multi-Specialty
1100 W 31ST ST, STE 300
Downers Grove, IL 60515
  • Reassigned Medicare billing, Illinois enrollment
  • 1,061 clinicians in this Medicare group
NPI 1801833983 (630) 469-9200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60521 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
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
Established Patient
$74.38 typical visit price
range $19.15 – $147.12
Typical copayment $18.59 (range $4.78 – $36.78)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Leslie Spencer's NPI number?

The NPI number for Leslie Spencer is 1316051097. It was assigned to this individual provider in the NPPES registry on August 18, 2006.

Where is Leslie Spencer located?

Leslie Spencer practices at 40 S Clay St # 100, Hinsdale, IL 60521. The listed phone number is (630) 920-2229.

What is Leslie Spencer's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.

Is Leslie Spencer enrolled in Medicare?

Yes. Leslie Spencer is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Leslie Spencer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leslie Spencer reassigns Medicare benefits to Dupage Medical Group Ltd (Downers Grove, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Leslie Spencer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Leslie Spencer was last updated on February 18, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.