What is Joanna-Grace Manzano's specialty?

Joanna-Grace Manzano (NPI 1578837878) is a Medicare-billing provider whose primary specialty is Internal Medicine in Houston, TX.

Where does Joanna-Grace Manzano practice?

Joanna-Grace Manzano practices in Houston, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1578837878.

How much does Medicare pay Joanna-Grace Manzano?

Joanna-Grace Manzano (NPI 1578837878) received approximately $39K in total Medicare Part B payments, serving 126 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1578837878

Joanna-Grace ManzanoM.D.

PRACTICEMDACCSee all providers at this practice →

Internal MedicineHouston, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

166

Unique beneficiaries

—

Total services

416

Distinct HCPCS

Medicare payment

$37K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$83

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Pantoprazole Sodium11 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 Joanna-Grace Manzano'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). 25 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
UNIVERSITY OF TEXAS M. D. ANDERSON CANCER CENTER	144	526
Norman Brito-Dellan Internal Medicine · Houston, TX	43	110
Josiah Halm Hospitalist · Houston, TX	28	50
Kaveh Karimzad Cardiology · Houston, TX	24	49
Peter Kim Cardiology · Houston, TX	23	36
Ruth Lucci Internal Medicine · Houston, TX	22	51
Kara Thompson Cardiology · Houston, TX	21	31
Jayne Viets Internal Medicine · Houston, TX	19	29
Maria Cruz-Carreras Internal Medicine · Houston, TX	19	25
TARRAND, JEFFREY	19	28
Elie Mouhayar Cardiology · Houston, TX	18	38
William Murphy Diagnostic Radiology · Houston, TX	18	27

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