DR. GARY S. LEISEROWITZ (M.D.) – Gynecologic Oncology Physician, NPI 1871575142
Gynecologic Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
181 GYNECOLOGICAL ONCOLOGY in CA
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Provider Addresses for DR. GARY S. LEISEROWITZ (M.D.)
Lawrence J. Ellison Ambulatory Care Center, 4860, Y Street, Sacramento, Sacramento County, California, 95817, United States
OB/GYN, SUITE 2500
SACRAMENTO, CA 958172307
Phone: (916) 734-6930
Fax: (916) 734-6666
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $40.
Total Amount is formed as General ($40) + Research ($0) + Ownership ($0) = $40.
Last reported payment date: 2024-03-16 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($40).
Total Amount
$40
General + Research + Ownership
Payments
1
Total payment records
General Amount
$40
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $40 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2008-12-11
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20081211000026 | I | Gynecological Oncology | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 74 | 54 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 60 | 19 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 20 | 20 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 18 | 17 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 14 | 14 | $0 |
Insurance plans in this area (ZIP 95817)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | NY | |
| - | PA | |
| - | CA | |
| Certified Registered Nurse Anesthetist (Crna) | CA | |
| Physician Assistant | IL | |
| Internal Medicine, Hospice/Palliative Care | CA | |
| Family Practice | CA | |
| - | CA | |
| - | CA | |
| - | CA |
Reviews
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