What is Frederick Fellin's specialty?

Frederick Fellin (NPI 1679684476) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Philadelphia, PA.

Where does Frederick Fellin practice?

Frederick Fellin practices in Philadelphia, PA, based on the location reported in the CMS Medicare provider datasets for NPI 1679684476.

How much does Medicare pay Frederick Fellin?

Frederick Fellin (NPI 1679684476) received approximately $46K in total Medicare Part B payments, serving 294 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1679684476

Frederick FellinMD

Hematology-OncologyPhiladelphia, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

432

Unique beneficiaries

—

Total services

624

Distinct HCPCS

Medicare payment

$44K

Peer benchmark

Total Medicare services vs. 417 Hematology-Oncology providers in PA — below median (cohort median 753).

PRESCRIBING · PART D · 2024

Total Rx claims

588

Beneficiaries

—

Total drug cost

$3.2M

Distinct drugs

Brand share

37.1%

Top prescribed drugs

Anastrozole144 claims

Palbociclib66 claims

Tamoxifen Citrate41 claims

Ibrutinib36 claims

Osimertinib Mesylate35 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 Frederick Fellin'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). 30 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
CHHS HOSPITAL COMPANY LLC	168	1,195
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	112	563
THOMAS JEFFERSON UNIVERSITY HOSPITALS INC	111	611
Trey Kamplain Diagnostic Radiology · Philadelphia, PA	63	254
Joseph Tropea Hematology · Philadelphia, PA	60	810
Scott Marlowe Diagnostic Radiology · Lewistown, PA	52	188
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	48	132
Joseph Anthony De Jesus Diagnostic Radiology · Salem, NJ	43	120
Craig Taylor Diagnostic Radiology · Salem, NJ	36	135
Leonard Gordon Diagnostic Radiology · Salem, NJ	34	146
EINSTEIN MEDICAL CENTER MONTGOMERY	33	128
Saum Shamimi-Noori Cardiology · Philadelphia, PA	30	68

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