What is Amballur John's specialty?

Amballur John (NPI 1932156130) is a Medicare-billing provider whose primary specialty is Anesthesiology in Baltimore, MD.

Where does Amballur John practice?

Amballur John practices in Baltimore, MD, based on the location reported in the CMS Medicare provider datasets for NPI 1932156130.

How much does Medicare pay Amballur John?

Amballur John (NPI 1932156130) received approximately $31K in total Medicare Part B payments, serving 210 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1932156130

Amballur JohnM.D.

PRACTICEJOHNS HOPKINS BAYVIEWSee all providers at this practice →

AnesthesiologyBaltimore, MDI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$9K

Peer benchmark

Total Medicare services vs. 814 Anesthesiology providers in MD — above median (cohort median 223).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

83.3

Quality

73.9

Cost

70.5

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.35%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Amballur John'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Martin Auster Diagnostic Radiology · Baltimore, MD	38	90
BELCHIS, DEBORAH	22	24
Margaret Arnold Vascular Surgery · Baltimore, MD	20	52
Mahmoud Malas Vascular Surgery · La Jolla, CA	19	64
Chiraag Dharia Diagnostic Radiology · Chicago, IL	19	26
Thomas Reifsnyder Vascular Surgery · Baltimore, MD	18	57
Hazem Hawasli Diagnostic Radiology · Baltimore, MD	12	19
Lu Lin Certified Registered Nurse Anesthetist (CRNA) · Baltimore, MD	11	12
Nathaniel Mcquay General Surgery · Highland Hills, OH	11	32

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