What is Karen Underhill's specialty?

Karen Underhill (NPI 1679590285) is a Medicare-billing provider whose primary specialty is Nurse Practitioner in Ann Arbor, MI.

Where does Karen Underhill practice?

Karen Underhill practices in Ann Arbor, MI, based on the location reported in the CMS Medicare provider datasets for NPI 1679590285.

How much does Medicare pay Karen Underhill?

Karen Underhill (NPI 1679590285) received approximately $26K in total Medicare Part B payments, serving 161 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1679590285

Karen UnderhillANP-C

PRACTICEGLACIER HILLS INC.See all providers at this practice →

Nurse PractitionerAnn Arbor, MII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

222

Unique beneficiaries

—

Total services

324

Distinct HCPCS

Medicare payment

$26K

Peer benchmark

Total Medicare services vs. 5,391 Nurse Practitioner providers in MI — above median (cohort median 188).

PRESCRIBING · PART D · 2024

Total Rx claims

308

Beneficiaries

—

Total drug cost

$15K

Distinct drugs

Brand share

15.9%

Top prescribed drugs

Atorvastatin Calcium31 claims

Amlodipine Besylate24 claims

Omeprazole24 claims

Gabapentin23 claims

Lisinopril23 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 Karen Underhill'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). 19 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
REGENTS OF THE UNIVERSITY OF MICHIGAN	130	710
Erin Diviney Chun Geriatric Medicine · Ann Arbor, MI	48	148
Gail Bell Nurse Practitioner · Ann Arbor, MI	34	127
Nancylee Stier Geriatric Medicine · Ann Arbor, MI	33	107
Mohamed Sayyouh Diagnostic Radiology · Ann Arbor, MI	33	75
Chinomso Nwagwu Geriatric Medicine · Ann Arbor, MI	28	74
Karen Neeb Nurse Practitioner · Ann Arbor, MI	22	90
Smita Patel Diagnostic Radiology · Ann Arbor, MI	18	36
Aamer Chughtai Diagnostic Radiology · Ann Arbor, MI	17	34
REGENTS OF THE UNIVERSITY OF MICHIGAN	17	39
Aine Kelly Diagnostic Radiology · Ann Arbor, MI	17	38
Perry Pernicano Diagnostic Radiology · Ann Arbor, MI	17	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