What is Thomas Hemmen's specialty?

Thomas Hemmen (NPI 1902821945) is a Medicare-billing provider whose primary specialty is Neurology in San Diego, CA.

Where does Thomas Hemmen practice?

Thomas Hemmen practices in San Diego, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1902821945.

How much does Medicare pay Thomas Hemmen?

Thomas Hemmen (NPI 1902821945) received approximately $31K in total Medicare Part B payments, serving 195 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1902821945

Thomas HemmenM.D./PH.D

PRACTICEUCSDSee all providers at this practice →

NeurologySan Diego, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

194

Unique beneficiaries

—

Total services

250

Distinct HCPCS

Medicare payment

$28K

Peer benchmark

Total Medicare services vs. 1,670 Neurology providers in CA — below median (cohort median 581).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$9K

Distinct drugs

Brand share

100.0%

Top prescribed drugs

Apixaban12 claims

QUALITY · MIPS · 2024

Final MIPS score

90.8

Quality

84.1

Cost

73.9

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.66%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$33

Payment records

By payment type

Food and Beverage$33

Top paying entities

Food and Beverage$33

REFERRAL NETWORK

Where Thomas Hemmen'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). 11 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
REGENTS OF THE UNIVERSITY OF CALIFORNIA	127	847
Albert Hsiao Diagnostic Radiology · San Diego, CA	18	51
Sharon Brouha Diagnostic Radiology · San Diego, CA	17	31
MAFEE, MAHMOOD	16	49
Nikdokht Farid Diagnostic Radiology · San Diego, CA	16	25
William Ladd Diagnostic Radiology · San Diego, CA	15	49
Daniel Blanchard Cardiology · San Diego, CA	14	37
Royya Modir Neurology · San Diego, CA	14	48
Brett Meyer Neurology · San Diego, CA	12	34
Anthony Demaria Cardiology · San Diego, CA	12	42
Vicente Iraguimadoz Neurology · San Diego, CA	12	42

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