What is John Donovan's specialty?

John Donovan (NPI 1164451688) is a Medicare-billing provider whose primary specialty is Gastroenterology in Los Angeles, CA.

Where does John Donovan practice?

John Donovan practices in Los Angeles, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1164451688.

How much does Medicare pay John Donovan?

John Donovan (NPI 1164451688) received approximately $3K in total Medicare Part B payments, serving 55 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1164451688

John DonovanM.D.

PRACTICEUSC UNIVERSITY HOSPITALSee all providers at this practice →

GastroenterologyLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$2K

Peer benchmark

Total Medicare services vs. 1,398 Gastroenterology providers in CA — bottom quintile (cohort median 750).

PRESCRIBING · PART D · 2024

Total Rx claims

219

Beneficiaries

—

Total drug cost

$92K

Distinct drugs

Brand share

12.3%

Top prescribed drugs

Tacrolimus72 claims

Carvedilol39 claims

Mycophenolate Mofetil38 claims

Entecavir25 claims

Amlodipine Besylate18 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where John Donovan'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). 2 inbound referrers · 8 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Brian Kim Gastroenterology · Los Angeles, CA	12	43
Unilab Corporation Clinical Laboratory · West Hills, CA	12	27

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
UNIVERSITY OF SOUTHERN CALIFORNIA	98	585
Harshawn Malhi Diagnostic Radiology · Los Angeles, CA	23	51
UNIVERSITY OF SOUTHERN CALIFORNIA	22	81
Kevin King Diagnostic Radiology · Los Angeles, CA	14	33
Brian Kim Gastroenterology · Los Angeles, CA	13	43
Cameron Hassani Diagnostic Radiology · Los Angeles, CA	12	22
Saro Khemichian Gastroenterology · Los Angeles, CA	12	67
Suzanne Palmer Diagnostic Radiology · West Hollywood, CA	11	15

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