Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CASSIE ELAINE LEONARD MD
NPI 1144415779
Obstetrics & Gynecology in Glens Falls, NY

Active since September 06, 2007PECOS EnrolledAccepts Medicare Assignment
90 SOUTH ST, GLENS FALLS, NY 12801(518) 792-7841(518) 932-0289 Get Directions Write a Review

NPPES record last updated: October 8, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 8, 2026, Mar 13, 2026, May 27, 2025 and 3 more (6 updates tracked since 2018).

About Cassie Elaine Leonard Md NPPES

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

CASSIE ELAINE LEONARD MD (NPI 1144415779) is an individual obstetrics & gynecology provider in Glens Falls, New York, licensed in New York (293306) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS, is affiliated with Glens Falls Hospital, and maintains a secondary practice location in Warrensburg.

NPPES Registry Identity

NPI1144415779
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameCASSIE ELAINE LEONARDCredential: MD
Location Address90 SOUTH STGlens Falls, NY 12801-4328
Mailing Address9 Carey RdQueensbury, NY 12804-7880 · (518) 761-0300
Fax(518) 932-0289
Sole ProprietorNo
Medical School CMSWest Virginia University School Of MedicineGraduated 2007
Enumeration DateSeptember 6, 2007
Last NPPES UpdateOctober 8, 20266 updates tracked since enumeration
NPPES CertifiedOctober 8, 2026
✔ NPI 1144415779 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in NY · 293306
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.
90 SOUTH ST, Glens Falls, NY 12801

Secondary Practice Location 1

Location 13767 Main StreetWarrensburg, NY 12885-1890 · Phone (518) 623-2844 · Fax (518) 623-3416

Other Identifiers 1

Medicaid05212506NY

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Cassie Elaine Leonard Md 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 ID9830368521
PECOS Enrollment IDI20180719002390, I20180719002472
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 Cassie Leonard reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Federally Qualified Health Center (FQHC)
90 SOUTH ST
Glens Falls, NY 12801
  • Reassigned Medicare billing, New York enrollment
  • 197 clinicians in this Medicare group

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

Areas of Expertise CMS Part B claims 4

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.

Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 76830
An ultrasound scan of the lower abdominal region is a safe, non-invasive procedure that uses sound waves to create images of internal structures. This helps in checking the health of reproductive organs and detecting any abnormalities. The scan is done via a small probe inserted into the body.
16 services16 patients
Complete ultrasound scan of pelvis 76856
A complete ultrasound scan of the pelvis is a safe, non-invasive imaging procedure. It uses sound waves to create pictures of your lower abdomen area, helping doctors to evaluate and diagnose any potential issues. It's painless and usually takes about 30 minutes.
16 services16 patients
Screening mammography 77067
Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.
13 services13 patients
Screening 3d breast mammography 77063
Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Glens Falls Hospital

Acute Care Hospitals · Glens Falls, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330191
Location100 Park StreetGlens Falls, NY 12801 · Warren County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 12801 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
$126.40 typical visit price
range $54.87 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$68.57 typical visit price
range $17.54 – $136.14
Typical copayment $17.14 (range $4.38 – $34.03)
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.

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.

Advanced Practice Midwife
90 SOUTH ST
GLENS FALLS, NY 12801
Physician Assistant
90 SOUTH ST
GLENS FALLS, NY 12801
Advanced Practice Midwife
90 SOUTH ST
GLENS FALLS, NY 12801
Obstetrics & Gynecology
90 SOUTH ST
GLENS FALLS, NY 12801
Clinic/Center (Federally Qualified Health Center (FQHC))
90 SOUTH ST
GLENS FALLS, NY 12801
Advanced Practice Midwife
90 SOUTH ST
GLENS FALLS, NY 12801
Nurse Practitioner (Family)
90 SOUTH ST
GLENS FALLS, NY 12801
Advanced Practice Midwife
90 SOUTH ST
GLENS FALLS, NY 12801

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 Cassie Leonard's NPI number?

The NPI number for Cassie Leonard is 1144415779. It was assigned to this individual provider in the NPPES registry on September 6, 2007.

Where is Cassie Leonard located?

Cassie Leonard practices at 90 South St, Glens Falls, NY 12801. The listed phone number is (518) 792-7841.

What is Cassie Leonard's specialty?

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

Is Cassie Leonard enrolled in Medicare?

Yes. Cassie Leonard 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.

Which organization bills Medicare for Cassie Leonard's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cassie Leonard reassigns Medicare benefits to Hudson Headwaters Health Network (Glens Falls, NY). 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 Cassie Leonard's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Cassie Leonard accept?

Health plans from CareSource list Cassie Leonard 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 Cassie Leonard affiliated with any hospitals?

According to CMS data, Cassie Leonard is affiliated with Glens Falls Hospital.

When was this NPI record last updated?

The NPPES record for Cassie Leonard was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days 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.