What is Ellen Manzullo's specialty?

Ellen Manzullo (NPI 1669577136) is a Medicare-billing provider whose primary specialty is Internal Medicine in Houston, TX.

Where does Ellen Manzullo practice?

Ellen Manzullo practices in Houston, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1669577136.

How much does Medicare pay Ellen Manzullo?

Ellen Manzullo (NPI 1669577136) received approximately $20K in total Medicare Part B payments, serving 155 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1669577136

Ellen ManzulloM.D.

PRACTICEMDACCSee all providers at this practice →

Internal MedicineHouston, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

168

Unique beneficiaries

—

Total services

210

Distinct HCPCS

Medicare payment

$18K

Peer benchmark

Total Medicare services vs. 6,183 Internal Medicine providers in TX — bottom quintile (cohort median 673).

PRESCRIBING · PART D · 2024

Total Rx claims

559

Beneficiaries

—

Total drug cost

$8K

Distinct drugs

Brand share

9.5%

Top prescribed drugs

Methylphenidate Hcl219 claims

Levothyroxine Sodium84 claims

Metformin Hcl30 claims

Lisinopril29 claims

Pantoprazole Sodium22 claims

QUALITY · MIPS · 2024

Final MIPS score

84.3

Quality

70.8

Cost

67.6

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.39%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Ellen Manzullo'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). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
UNIVERSITY OF TEXAS M. D. ANDERSON CANCER CENTER	156	539
Kaveh Karimzad Cardiology · Houston, TX	17	20
Peter Kim Cardiology · Houston, TX	14	19
Jeremy Erasmus Diagnostic Radiology · Houston, TX	11	11
Kara Thompson Cardiology · Houston, TX	11	13

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