PROVIDER PROFILE · NPI 1457426876

Mark FiersteinMD

Internal MedicineNew Hyde Park, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,687

Unique beneficiaries

—

Total services

2,231

Distinct HCPCS

Medicare payment

$148K

Peer benchmark

Total Medicare services vs. 7,864 Internal Medicine providers in NY — top quintile (cohort median 552).

PRESCRIBING · PART D · 2024

Total Rx claims

3,568

Beneficiaries

—

Total drug cost

$235K

Distinct drugs

Brand share

15.6%

Top prescribed drugs

Atorvastatin Calcium354 claims

Amlodipine Besylate236 claims

Rosuvastatin Calcium173 claims

Levothyroxine Sodium158 claims

Hydrochlorothiazide133 claims

QUALITY · MIPS · 2024

Final MIPS score

90.8

Quality

91.8

Cost

75.2

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.66%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Mark Fierstein'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). 7 inbound referrers · 6 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Melville, NY	168	760
Northwell Health Laboratories Clinical Laboratory · New Hyde Park, NY	21	54
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	19	36
LONG ISLAND JEWISH MEDICAL CENTER	18	40
Alan Cohen Cardiology · New Hyde Park, NY	16	51
NORTH SHORE UNIVERSITY HOSPITAL	15	30
David Fierstein Internal Medicine · New Hyde Park, NY	13	50

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Melville, NY	55	179
Northwell Health Laboratories Clinical Laboratory · New Hyde Park, NY	23	63
NORTH SHORE UNIVERSITY HOSPITAL	22	52
LONG ISLAND JEWISH MEDICAL CENTER	21	39
Alan Cohen Cardiology · New Hyde Park, NY	19	46
Barbara Hisler Dermatology · Hew Hyde Park, NY	11	17

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