What is Corinna Warren's specialty?

Corinna Warren (NPI 1659398253) is a Medicare-billing provider whose primary specialty is Internal Medicine in Chesterfield, MO.

Where does Corinna Warren practice?

Corinna Warren practices in Chesterfield, MO, based on the location reported in the CMS Medicare provider datasets for NPI 1659398253.

How much does Medicare pay Corinna Warren?

Corinna Warren (NPI 1659398253) received approximately $122K in total Medicare Part B payments, serving 391 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1659398253

Corinna WarrenM.D.

Internal MedicineChesterfield, MOI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,416

Unique beneficiaries

—

Total services

1,836

Distinct HCPCS

Medicare payment

$116K

Peer benchmark

Total Medicare services vs. 1,563 Internal Medicine providers in MO — top quintile (cohort median 658).

PRESCRIBING · PART D · 2024

Total Rx claims

9,732

Beneficiaries

—

Total drug cost

$726K

Distinct drugs

154

Brand share

23.3%

Top prescribed drugs

Atorvastatin Calcium613 claims

Levothyroxine Sodium449 claims

Rosuvastatin Calcium334 claims

Lisinopril319 claims

Pravastatin Sodium283 claims

QUALITY · MIPS · 2024

Final MIPS score

92.7

Quality

82.3

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.75%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

Hospital

Hospital

Hospital

Hospital

REFERRAL NETWORK

Where Corinna Warren'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). 12 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ST. LUKES EPISCOPAL-PRESBYTERIAN HOSPITAL	336	2,153
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Maryland Heights, MO	160	349
KANTERMAN, ROBERT	32	85
Maged Haikal Cardiology · Chesterfield, MO	31	113
Anthony Pearson Cardiology · Chesterfield, MO	30	107
Michael Stadnyk Diagnostic Radiology · Chesterfield, MO	22	64
JAMROZ, GREGORY	20	63
Keith Bonacquisti Otolaryngology · Scottsbluff, NE	19	42
MERCY HOSPITALS EAST COMMUNITIES	15	56
Charles Garvin Diagnostic Radiology · Chesterfield, MO	14	37
John Mason General Surgery · Chesterfield, MO	13	36
Thomas Morrison Cardiology · Saint Louis, MO	13	39

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