PROVIDER PROFILE · NPI 1275623191

Nathaniel WoodruffM.D., PHD, FACC

CardiologyGrass Valley, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

592

Unique beneficiaries

—

Total services

696

Distinct HCPCS

Medicare payment

$48K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

817

Beneficiaries

—

Total drug cost

$110K

Distinct drugs

Brand share

19.2%

Top prescribed drugs

Atorvastatin Calcium157 claims

Metoprolol Succinate110 claims

Furosemide76 claims

Apixaban63 claims

Rosuvastatin Calcium57 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$19

Payment records

By payment type

Food and Beverage$19

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 230054

Hospital

CCN 500024

Hospital

REFERRAL NETWORK

Where Nathaniel Woodruff'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). 64 inbound referrers · 150 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Mobile Medical Response Inc Ambulance Service Provider · Saginaw, MI	147	261
MYMICHIGAN MEDICAL CENTER GLADWIN	121	753
Kristin Nelsen Interventional Cardiology · Grand Rapids, MI	64	122
George Ascherl Diagnostic Radiology · Grand Rapids, MI	62	89
Nasser Qadri Interventional Radiology · Fort Wayne, IN	61	109
CARNEY, JEFFERY	61	103
Peter Lassing Diagnostic Radiology · Grand Rapids, MI	59	90
Vipin Khetarpal Cardiology · Saginaw, MI	58	93
SELVARAJ, CARRIE	57	81
NAKAGAWA, NOBUO	53	97
GADAM, RAMAKRISHNAYYA	51	99
QUEST DIAGNOSTICS INCORPORATED MI	50	164

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
COVENANT MEDICAL CENTER, INC.	147	379
Mobile Medical Response Inc Ambulance Service Provider · Saginaw, MI	143	265
ASCENSION ST. MARY'S HOSPITAL	128	325
MYMICHIGAN MEDICAL CENTER GLADWIN	95	572
Vipin Khetarpal Cardiology · Saginaw, MI	87	171
Peter Lassing Diagnostic Radiology · Grand Rapids, MI	79	131
Gopi Nallani Diagnostic Radiology · Grand Rapids, MI	78	117
Safwan Kassas Cardiology · Saginaw, MI	74	113
MYMICHIGAN MEDICAL CENTER STANDISH	71	188
George Ascherl Diagnostic Radiology · Grand Rapids, MI	71	129
Kristin Nelsen Interventional Cardiology · Grand Rapids, MI	67	157
Nasser Qadri Interventional Radiology · Fort Wayne, IN	65	100

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