What is Karen Warschaw's specialty?

Karen Warschaw (NPI 1538142625) is a Medicare-billing provider whose primary specialty is Dermatology in Scottsdale, AZ.

Where does Karen Warschaw practice?

Karen Warschaw practices in Scottsdale, AZ, based on the location reported in the CMS Medicare provider datasets for NPI 1538142625.

How much does Medicare pay Karen Warschaw?

Karen Warschaw (NPI 1538142625) received approximately $543K in total Medicare Part B payments, serving 4,666 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1538142625

Karen WarschawM.D.

PRACTICERICHARD BERNERT, LLCSee all providers at this practice →

DermatologyScottsdale, AZI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

5,802

Unique beneficiaries

—

Total services

9,390

Distinct HCPCS

Medicare payment

$543K

Peer benchmark

Total Medicare services vs. 277 Dermatology providers in AZ — top quintile (cohort median 4,361).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

75.0

Quality

0.0

Cost

0.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

0.00%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Karen Warschaw'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). 65 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Kimberly Stover Nurse Practitioner · Prescott, AZ	280	442
Joseph Machuzak Dermatology · Prescott, AZ	258	494
Jesse Olmedo Dermatology · Surprise, AZ	162	310
PARDEE, SUSAN	141	254
Nicole Hoxworth Pathology · Scottsdale, AZ	125	188
Benjamin Vazquez Dermatology · Eugene, OR	125	171
Richard Bernert Pathology · Scottsdale, AZ	104	138
Lloyd Brenden Dermatology · Mesa, AZ	102	127
Jerold Powers Dermatology · Scottsdale, AZ	96	133
Lori-Ann Wilcox Dermatology · Peoria, AZ	79	119
EISENHOWER MEDICAL CENTER	68	194
Bill Halmi Dermatology · Phoenix, AZ	68	95

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