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DR. LESLIE G OSHIN M.D.
NPI 1326023698
Obstetrics & Gynecology in Lake Forest, IL

Active since December 09, 2005PECOS EnrolledAccepts Medicare Assignment
93.08/100
CMS Quality Rating
900 N WESTMORELAND RD, SUITE 228, LAKE FOREST, IL 60045(847) 234-3860(847) 234-3981 Get Directions Write a Review

NPPES record last updated: February 19, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Leslie G Oshin M.d. NPPES

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

DR. LESLIE G OSHIN M.D. (NPI 1326023698) is an individual obstetrics & gynecology provider in Lake Forest, Illinois, licensed in Illinois (036-094598) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and maintains a secondary practice location in Highland Park.

NPPES Registry Identity

NPI1326023698
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. LESLIE G OSHINCredential: M.D.
Location Address900 N WESTMORELAND RD, SUITE 228Lake Forest, IL 60045-1674
Mailing Address2650 Ridge Ave Ste 1223Evanston, IL 60201-1700 · (847) 570-2040
Phone(847) 234-3860
Fax(847) 234-3981
Sole ProprietorNo
Medical School CMSChicago College Of Medicine And SurgeryGraduated 1993
Enumeration DateDecember 9, 2005
Last NPPES UpdateFebruary 19, 2021
NPPES CertifiedFebruary 19, 2021
✔ NPI 1326023698 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in IL · 036-094598
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
900 N WESTMORELAND RD, Lake Forest, IL 60045
Open in Google Maps ↗

Secondary Practice Location 1

Location 1757 Park Ave W Ste 2800Highland Park, IL 60035-2557 · Phone (847) 432-1558

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.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

Dr. Leslie G Oshin M.d. 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 ID2769531243
PECOS Enrollment IDI20100913000870
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 6

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.

Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
64 services64 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.
58 services56 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.
44 services42 patients
Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
32 services32 patients
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory Q0091
A Papanicolaou smear, often called a Pap smear, is a test to check for changes in cells. A small sample is gently collected from the lower region and sent to a lab for examination. This helps in early detection of potential health issues.
12 services12 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Northshore University Healthsystem - Evanston Hospital

Acute Care Hospitals · Evanston, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140010
Location2650 Ridge AveEvanston, IL 60201 · Cook County
Emergency services Birthing friendly

Swedish Hospital

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140114
Location5145 N California AveChicago, IL 60625 · Cook County
Emergency services Birthing friendly

Northwestern Lake Forest Hospital

Acute Care Hospitals · Lake Forest, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140130
Location1000 N Westmoreland RoadLake Forest, IL 60045 · Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60045 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.08/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.79
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

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

LAKE SHORE PEDIATRICS, LTD
Pediatrics
900 N WESTMORELAND RD, SUITE 106
LAKE FOREST, IL 60045
Lake County (847) 615-4654
TANNER L COLEGROVE M.D.
Obstetrics & Gynecology
900 N WESTMORELAND RD, SUITE # 207
LAKE FOREST, IL 60045
Lake County (847) 234-9110
MELISSA HILB CPNP
Nurse Practitioner (Pediatrics)
900 N WESTMORELAND RD, SUITE 110
LAKE FOREST, IL 60045
Lake County (847) 295-1220
NORTH SHORE RHEUMATOLOGY
Internal Medicine (Rheumatology)
900 N WESTMORELAND RD, SUITE 222
LAKE FOREST, IL 60045
Lake County (847) 234-6121
DR. DENISE VERGES MD
Internal Medicine (Rheumatology)
900 N WESTMORELAND RD, SUITE 222
LAKE FOREST, IL 60045
Lake County (847) 234-6121
NORTHWESTERN MEDICAL FACULTY FOUNDATION
Optometrist
900 N WESTMORELAND RD, LOWER LEVEL 88
LAKE FOREST, IL 60045
Lake County (847) 295-0001
JHAN CARLO FONTANILLA DPT
Physical Therapist
900 N WESTMORELAND RD
LAKE FOREST, IL 60045
Lake County (847) 535-6418
DR. REBECCA E JACOBSON MD
Obstetrics & Gynecology
900 N WESTMORELAND RD, STE 228
LAKE FOREST, IL 60045
Lake County (847) 234-3860

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 Oshin's NPI number?

The NPI number for Leslie Oshin is 1326023698. It was assigned to this individual provider in the NPPES registry on December 9, 2005.

Where is Leslie Oshin located?

Leslie Oshin practices at 900 N Westmoreland Rd Suite 228, Lake Forest, IL 60045. The listed phone number is (847) 234-3860.

What is Leslie Oshin's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Leslie Oshin enrolled in Medicare?

Yes. Leslie Oshin 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 Leslie Oshin accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Leslie Oshin 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 Leslie Oshin affiliated with any hospitals?

According to CMS data, Leslie Oshin is affiliated with Northshore University Healthsystem - Evanston Hospital, Swedish Hospital and Northwestern Lake Forest Hospital.

When was this NPI record last updated?

The NPPES record for Leslie Oshin was last updated on February 19, 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.