What is Karen Zagar's specialty?

Karen Zagar (NPI 1902889587) is a Medicare-billing provider whose primary specialty is Rheumatology in Palm Harbor, FL.

Where does Karen Zagar practice?

Karen Zagar practices in Palm Harbor, FL, based on the location reported in the CMS Medicare provider datasets for NPI 1902889587.

How much does Medicare pay Karen Zagar?

Karen Zagar (NPI 1902889587) received approximately $1.4M in total Medicare Part B payments, serving 346 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1902889587

Karen ZagarM.D.

RheumatologyPalm Harbor, FLI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,519

Unique beneficiaries

—

Total services

97,337

Distinct HCPCS

Medicare payment

$1.2M

Peer benchmark

Total Medicare services vs. 351 Rheumatology providers in FL — top quintile (cohort median 20,723).

PRESCRIBING · PART D · 2024

Total Rx claims

1,909

Beneficiaries

—

Total drug cost

$1.2M

Distinct drugs

Brand share

38.8%

Top prescribed drugs

Methotrexate Sodium326 claims

Hydroxychloroquine Sulfate203 claims

Prednisone179 claims

Tramadol Hcl168 claims

Hydrocodone/Acetaminophen86 claims

QUALITY · MIPS · 2024

Final MIPS score

73.5

Quality

43.3

Cost

0.0

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

-0.18%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$4K

Payment records

170

By payment type

Food and Beverage$4K

Top paying entities

Food and Beverage$4K

REFERRAL NETWORK

Where Karen Zagar'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). 10 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MORTON PLANT HOSPITAL ASSOCIATION INC	125	549
TRUSTEES OF MEASE HOSPITAL INC	79	288
Robert Krupa Diagnostic Radiology · Clearwater, FL	25	47
Laboratory Corporation Of America Clinical Laboratory · Tampa, FL	23	55
Beth Hanrahan Internal Medicine · Clearwater, FL	19	178
Kenneth Sabatino Cardiology · Safety Harbor, FL	17	64
Bindu Thomas Internal Medicine · Safety Harbor, FL	14	71
LOWENSTEIN, MITCHELL	13	51
TRUSTEES OF MEASE HOSPITAL INC	11	32
Gina Raptoulis Internal Medicine · Palm Harbor, FL	11	275

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

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