What is Maria Bacay's specialty?

Maria Bacay (NPI 1679599070) is a Medicare-billing provider whose primary specialty is Internal Medicine in Manteca, CA.

Where does Maria Bacay practice?

Maria Bacay practices in Manteca, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1679599070.

How much does Medicare pay Maria Bacay?

Maria Bacay (NPI 1679599070) received approximately $104K in total Medicare Part B payments, serving 229 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1679599070

Maria BacayMD

PRACTICEBACAY-ARUIZA MEDICAL ASSOCIATES INCSee all providers at this practice →

Internal MedicineManteca, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,062

Unique beneficiaries

—

Total services

1,739

Distinct HCPCS

Medicare payment

$97K

Peer benchmark

Total Medicare services vs. 10,499 Internal Medicine providers in CA — top quintile (cohort median 531).

PRESCRIBING · PART D · 2024

Total Rx claims

10,922

Beneficiaries

—

Total drug cost

$1.4M

Distinct drugs

174

Brand share

23.3%

Top prescribed drugs

Levothyroxine Sodium555 claims

Atorvastatin Calcium494 claims

Amlodipine Besylate435 claims

Losartan Potassium313 claims

Metformin Hcl310 claims

QUALITY · MIPS · 2024

Final MIPS score

83.6

Quality

90.1

Cost

81.8

Improvement activities

40.0

Promoting interop.

68.0

Payment adjustment

0.36%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$1K

Payment records

By payment type

Food and Beverage$1K

Education$20

Top paying entities

Food and Beverage$1K

Education$20

REFERRAL NETWORK

Where Maria Bacay'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
Mario Sattah Diagnostic Radiology · Tracy, CA	124	251
WEST COAST CLINICAL LABORATORIES, INC.	90	185
Cassandra Mccurdy Nurse Practitioner · Manteca, CA	67	150
Wayne Tran Diagnostic Radiology · San Francisco, CA	61	128
Nidhi Gupta Diagnostic Radiology · Marquette, MI	49	83
LEGACY LABS LLC	44	59
Howard Miller Podiatry · Manteca, CA	38	120
Venkata Emani Interventional Cardiology · Stockton, CA	37	99
MALLARI HEALTHCARE, INC.	34	77
NPI 1255361630	30	68
SANDERS, DIANE	24	39
Michael Davis Pulmonary Disease · Manteca, CA	23	201

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