PROVIDER PROFILE · NPI 1891085049

Heather FieldsM.D.

PRACTICEMAYO CLINIC ARIZONASee all providers at this practice →

Internal MedicineScottsdale, AZI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

823

Unique beneficiaries

—

Total services

940

Distinct HCPCS

Medicare payment

$65K

Peer benchmark

Total Medicare services vs. 1,880 Internal Medicine providers in AZ — above median (cohort median 646).

PRESCRIBING · PART D · 2024

Total Rx claims

2,577

Beneficiaries

—

Total drug cost

$273K

Distinct drugs

Brand share

18.4%

Top prescribed drugs

Atorvastatin Calcium183 claims

Rosuvastatin Calcium177 claims

Levothyroxine Sodium153 claims

Losartan Potassium135 claims

Lisinopril131 claims

QUALITY · MIPS · 2024

Final MIPS score

86.5

Quality

78.3

Cost

76.6

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.48%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Heather Fields'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). 24 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MAYO CLINIC ARIZONA	241	848
BARR, KATHRYN	59	111
CHIVERS, F	45	153
Ryan Robetorye Pathology · Scottsdale, AZ	40	68
KRANSDORF, MARK	39	97
Bernadette Reidy Internal Medicine · Scottsdale, AZ	30	48
LEE, HOWARD	28	50
Komandoor Srivathsan Clinical Cardiac Electrophysiology · Phoenix, AZ	25	37
Kelley Kennedy Internal Medicine · Scottsdale, AZ	21	51
Tina Byun Internal Medicine · Scottsdale, AZ	21	24
Nirvikar Dahiya Diagnostic Radiology · Scottsdale, AZ	20	71
RUZICH, RUSSELL	19	31

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