What is John Ambrose's specialty?

John Ambrose (NPI 1598795429) is a Medicare-billing provider whose primary specialty is Cardiology in Fresno, CA.

Where does John Ambrose practice?

John Ambrose practices in Fresno, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1598795429.

How much does Medicare pay John Ambrose?

John Ambrose (NPI 1598795429) received approximately $74K in total Medicare Part B payments, serving 3,228 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1598795429

John AmbroseMD

CardiologyFresno, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

3,480

Unique beneficiaries

—

Total services

4,678

Distinct HCPCS

Medicare payment

$73K

Peer benchmark

Total Medicare services vs. 1,869 Cardiology providers in CA — above median (cohort median 2,371).

PRESCRIBING · PART D · 2024

Total Rx claims

1,065

Beneficiaries

—

Total drug cost

$139K

Distinct drugs

Brand share

20.5%

Top prescribed drugs

Atorvastatin Calcium131 claims

Rosuvastatin Calcium112 claims

Metoprolol Succinate84 claims

Furosemide63 claims

Spironolactone59 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$132

Payment records

By payment type

Food and Beverage$132

Top paying entities

Food and Beverage$132

REFERRAL NETWORK

Where John Ambrose'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). 136 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
FRESNO COMMUNITY HOSPITAL AND MEDICAL CENTER	1,266	2,412
Bipin Joshi Cardiology · Fresno, CA	240	340
Unilab Corporation Clinical Laboratory · West Hills, CA	169	362
Ronald Thant Diagnostic Radiology · Chicago, IL	158	250
Sundararajan Srikanth Interventional Cardiology · Pomona, CA	139	261
Charles Sohn Cardiology · Fresno, CA	136	174
Teresa Daniele Cardiology · Fresno, CA	129	209
Mouatou Mouanoutoua Interventional Cardiology · Fresno, CA	128	209
SAINT AGNES MEDICAL CENTER	119	167
William Carson Diagnostic Radiology · San Diego, CA	112	155
Gabriela Tarau Diagnostic Radiology · Glenwood Springs, CO	112	182
Martin Rindahl Interventional Radiology · Clovis, CA	111	168

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