What is Karen Leiser's specialty?

Karen Leiser (NPI 1073689055) is a Medicare-billing provider whose primary specialty is Internal Medicine in Harrison, NY.

Where does Karen Leiser practice?

Karen Leiser practices in Harrison, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1073689055.

How much does Medicare pay Karen Leiser?

Karen Leiser (NPI 1073689055) received approximately $102K in total Medicare Part B payments, serving 248 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1073689055

Karen LeiserMD

PRACTICEWHITE PLAINS PHYSICIAN SERVICESSee all providers at this practice →

Internal MedicineHarrison, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,060

Unique beneficiaries

—

Total services

1,392

Distinct HCPCS

Medicare payment

$96K

PRESCRIBING · PART D · 2024

Total Rx claims

1,946

Beneficiaries

—

Total drug cost

$44K

Distinct drugs

Brand share

9.4%

Top prescribed drugs

Atorvastatin Calcium359 claims

Losartan Potassium209 claims

Amlodipine Besylate175 claims

Rosuvastatin Calcium147 claims

Lisinopril104 claims

QUALITY · MIPS · 2024

Final MIPS score

99.2

Quality

35.0

Cost

64.8

Improvement activities

40.0

Promoting interop.

99.0

Payment adjustment

1.02%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

Home health agency

Home health agency

Hospital

Inpatient rehabilitation facility

REFERRAL NETWORK

Where Karen Leiser's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 2 inbound referrers · 19 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
WHITE PLAINS HOSPITAL MEDICAL CENTER	56	186
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	39	124

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
WHITE PLAINS HOSPITAL MEDICAL CENTER	94	314
Roger Cappucci Internal Medicine · Scarsdale, NY	33	79
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	28	86
Michael Swirsky Diagnostic Radiology · White Plains, NY	17	33
Dorian Gravenese Dermatology · Scarsdale, NY	17	32
Richard Lipset Diagnostic Radiology · White Plains, NY	15	38
Jamie Mandac Endocrinology · Scarsdale, NY	14	55
Pathology Solutions Llc Clinical Laboratory · Eatontown, NJ	14	26
Jeannette Yuen Internal Medicine · Scarsdale, NY	14	33
Peter Hobeika Diagnostic Radiology · New York, NY	14	35
Claudia Felberg Pulmonary Disease · Scarsdale, NY	14	36
Kenneth Croen Internal Medicine · Harrison, NY	13	31

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events