What is Howard Guan's specialty?

Howard Guan (NPI 1134427636) is a Medicare-billing provider whose primary specialty is Ophthalmology in San Marcos, CA.

Where does Howard Guan practice?

Howard Guan practices in San Marcos, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1134427636.

How much does Medicare pay Howard Guan?

Howard Guan (NPI 1134427636) received approximately $302K in total Medicare Part B payments, serving 392 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1134427636

Howard GuanM.D.

PRACTICEFACULTY PHYSICIANS AND SURGEONS OF LLUSMSee all providers at this practice →

OphthalmologySan Marcos, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,891

Unique beneficiaries

—

Total services

6,601

Distinct HCPCS

Medicare payment

$252K

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

2,481

Beneficiaries

—

Total drug cost

$173K

Distinct drugs

Brand share

30.0%

Top prescribed drugs

Latanoprost703 claims

Dorzolamide Hcl/Timolol Maleat308 claims

Brimonidine Tartrate290 claims

Prednisolone Acetate200 claims

Timolol Maleate197 claims

QUALITY · MIPS · 2024

Final MIPS score

88.9

Quality

72.1

Cost

77.4

Improvement activities

40.0

Promoting interop.

80.0

Payment adjustment

0.58%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$946

Payment records

By payment type

Food and Beverage$922

Travel and Lodging$14

Education$9

Top paying entities

Food and Beverage$922

Travel and Lodging$14

Education$9

REFERRAL NETWORK

Where Howard Guan'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). 4 inbound referrers · 4 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
BOSTON MEDICAL CENTER CORPORATION	89	578
SEVENTH-DAY ADVENTISTS LOMA LINDA UNIVERSITY MEDICAL CENTER	17	33
Babak Eliassi-Rad Ophthalmology · N Dartmouth, MA	11	64
Pavan Sekhar Anesthesiology · Boston, MA	11	27

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
BOSTON MEDICAL CENTER CORPORATION	129	803
Meenakshi Chaku Ophthalmology · Maywood, IL	16	80
Manishi Desai Ophthalmology · Taunton, MA	16	38
SEVENTH-DAY ADVENTISTS LOMA LINDA UNIVERSITY MEDICAL CENTER	11	19

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