What is William Freeman's specialty?

William Freeman (NPI 1518983352) is a Medicare-billing provider whose primary specialty is Ophthalmology in San Diego, CA.

Where does William Freeman practice?

William Freeman practices in San Diego, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1518983352.

How much does Medicare pay William Freeman?

William Freeman (NPI 1518983352) received approximately $1.2M in total Medicare Part B payments, serving 570 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518983352

William FreemanM.D.

PRACTICEUCSDSee all providers at this practice →

OphthalmologySan Diego, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,837

Unique beneficiaries

—

Total services

20,813

Distinct HCPCS

Medicare payment

$1.2M

Peer benchmark

Total Medicare services vs. 2,144 Ophthalmology providers in CA — top quintile (cohort median 1,859).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$2K

Distinct drugs

Brand share

41.9%

Top prescribed drugs

Dorzolamide Hcl/Timolol Maleat39 claims

Ketorolac Tromethamine24 claims

Brimonidine Tartrate16 claims

Difluprednate14 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 · 2025

Total received

$23

Payment records

By payment type

Food and Beverage$23

Top paying entities

Food and Beverage$23

REFERRAL NETWORK

Where William Freeman'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
REGENTS OF THE UNIVERSITY OF CALIFORNIA	204	931
Frank Tsai Ophthalmology · San Diego, CA	50	141
Unilab Corporation Clinical Laboratory · West Hills, CA	29	87
Arash Mozayan Isfahani Ophthalmology · Encinitas, CA	28	81
Christopher Heichel Ophthalmology · San Diego, CA	19	38
Scripps Health Clinical Laboratory · La Jolla, CA	16	71
Robert Weinreb Ophthalmology · San Diego, CA	12	45
Victor Legner Geriatric Medicine · Westerville, OH	11	46
Anne Lam Optometry · San Diego, CA	11	27

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events