What is Kristen Willison's specialty?

Kristen Willison (NPI 1306831599) is a Medicare-billing provider whose primary specialty is Family Practice in San Mateo, CA.

Where does Kristen Willison practice?

Kristen Willison practices in San Mateo, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1306831599.

How much does Medicare pay Kristen Willison?

Kristen Willison (NPI 1306831599) received approximately $85K in total Medicare Part B payments, serving 220 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1306831599

Kristen WillisonMD

Family PracticeSan Mateo, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

635

Unique beneficiaries

—

Total services

998

Distinct HCPCS

Medicare payment

$76K

Peer benchmark

Total Medicare services vs. 8,228 Family Practice providers in CA — top quintile (cohort median 411).

PRESCRIBING · PART D · 2024

Total Rx claims

3,396

Beneficiaries

—

Total drug cost

$139K

Distinct drugs

Brand share

14.5%

Top prescribed drugs

Levothyroxine Sodium317 claims

Atorvastatin Calcium289 claims

Amlodipine Besylate237 claims

Losartan Potassium183 claims

Lisinopril136 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$153

Payment records

By payment type

Food and Beverage$153

Top paying entities

Food and Beverage$153

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050007

Hospital

REFERRAL NETWORK

Where Kristen Willison'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). 5 inbound referrers · 18 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Harriet Borofsky Diagnostic Radiology · San Mateo, CA	28	61
Jeffrey Guttas Cardiology · San Mateo, CA	17	38
Alexander Moldanado Family Practice · San Mateo, CA	16	30
Clay Napper Diagnostic Radiology · San Mateo, CA	15	37
Alireza Ghamgosar Podiatry · San Mateo, CA	15	48

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MILLS-PENINSULA HEALTH SERVICES	229	1,082
Hayley Brown Nurse Practitioner · San Mateo, CA	40	82
Adam Paley Family Practice · San Mateo, CA	23	36
Dorra Sellami Diagnostic Radiology · Burlingame, CA	21	40
MARCUS, DAVID	16	34
Jeffrey Guttas Cardiology · San Mateo, CA	16	50
Alexander Moldanado Family Practice · San Mateo, CA	16	33
Alireza Ghamgosar Podiatry · San Mateo, CA	14	37
Sourav Ray Pathology · Burlingame, CA	14	40
Lenora Fung Diagnostic Radiology · Burlingame, CA	13	25
Avanti Ambekar Diagnostic Radiology · San Mateo, CA	13	29
Michael Lai Diagnostic Radiology · Daly City, CA	13	24

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