PROVIDER PROFILE · NPI 1952620270

Christopher GrennanMD

Family PracticeWamego, KSI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,682

Unique beneficiaries

—

Total services

3,185

Distinct HCPCS

Medicare payment

$139K

Peer benchmark

Total Medicare services vs. 1,015 Family Practice providers in KS — top quintile (cohort median 801).

PRESCRIBING · PART D · 2024

Total Rx claims

4,672

Beneficiaries

—

Total drug cost

$224K

Distinct drugs

Brand share

10.7%

Top prescribed drugs

Levothyroxine Sodium318 claims

Amlodipine Besylate233 claims

Atorvastatin Calcium206 claims

Lisinopril201 claims

Losartan Potassium179 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Christopher Grennan'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
STORMONT-VAIL HEALTHCARE INC	42	277
Michael Guhr Physician Assistant · Wamego, KS	34	148
Gregory Welle Diagnostic Radiology · Manhattan, KS	30	82
Jody Toerber-Clark Nurse Practitioner · Wamego, KS	25	164
SPILKER, TODD	16	73
NPI 1144214891	14	41
Steven Seals Clinical Cardiac Electrophysiology · Topeka, KS	13	52
Thomas Doyle Cardiology · Topeka, KS	12	146
WU, LAMBERT	11	31

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