What is Heather Fields's specialty?

Heather Fields (NPI 1891085049) is a Medicare-billing provider whose primary specialty is Internal Medicine in Scottsdale, AZ.

Where does Heather Fields practice?

Heather Fields practices in Scottsdale, AZ, based on the location reported in the CMS Medicare provider datasets for NPI 1891085049.

How much does Medicare pay Heather Fields?

Heather Fields (NPI 1891085049) received approximately $73K in total Medicare Part B payments, serving 409 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

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 · 2025

Total received

$15

Payment records

By payment type

Food and Beverage$15

Top paying entities

Food and Beverage$15

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events