PROVIDER PROFILE · NPI 1538346911

Michael HammanMD

DermatologySan Diego, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

912

Unique beneficiaries

—

Total services

1,098

Distinct HCPCS

Medicare payment

$362K

Peer benchmark

Total Medicare services vs. 1,546 Dermatology providers in CA — below median (cohort median 2,504).

PRESCRIBING · PART D · 2024

Total Rx claims

325

Beneficiaries

—

Total drug cost

$4K

Distinct drugs

Brand share

16.9%

Top prescribed drugs

Doxycycline Hyclate215 claims

Hydrocodone/Acetaminophen36 claims

Cephalexin21 claims

Imiquimod20 claims

Sulfamethoxazole/Trimethoprim19 claims

QUALITY · MIPS · 2024

Final MIPS score

85.2

Quality

74.5

Cost

82.7

Improvement activities

40.0

Promoting interop.

92.0

Payment adjustment

0.43%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$1K

Payment records

By payment type

Food and Beverage$1K

REFERRAL NETWORK

Where Michael Hamman'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). 7 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Antoanella Calame Dermatology · San Diego, CA	241	490
Brook Brouha Dermatology · La Jolla, CA	112	233
YUMA REGIONAL MEDICAL CENTER	72	163
Patrick Aiello Ophthalmology · Yuma, AZ	15	27
REGENTS OF THE UNIVERSITY OF CALIFORNIA	12	34
WONG, DOROTHY	11	27
Scripps Health Clinical Laboratory · La Jolla, CA	11	33

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