What is Ann Haas's specialty?

Ann Haas (NPI 1538270707) is a Medicare-billing provider whose primary specialty is Micrographic Dermatologic Surgery in Sacramento, CA.

Where does Ann Haas practice?

Ann Haas practices in Sacramento, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1538270707.

How much does Medicare pay Ann Haas?

Ann Haas (NPI 1538270707) received approximately $305K in total Medicare Part B payments, serving 331 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1538270707

Ann HaasM.D.

Micrographic Dermatologic SurgerySacramento, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

629

Unique beneficiaries

—

Total services

753

Distinct HCPCS

Medicare payment

$268K

Peer benchmark

Total Medicare services vs. 33 Micrographic Dermatologic Surgery providers in CA — below median (cohort median 2,594).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$56

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Cephalexin11 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Ann Haas'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). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
David Guillen Dermatology · Gastonia, NC	86	139
PASHAEI, SHAYESTEH	75	148
Mary Markiewitz Physician Assistant · Sacramento, CA	55	77
GHISELLI, ROBERT	49	82

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