PROVIDER PROFILE · NPI 1609883024

Michael DrinnanMD

OphthalmologySan Mateo, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,023

Unique beneficiaries

—

Total services

1,107

Distinct HCPCS

Medicare payment

$131K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

246

Beneficiaries

—

Total drug cost

$6K

Distinct drugs

Brand share

11.4%

Top prescribed drugs

Latanoprost149 claims

Timolol Maleate55 claims

Dorzolamide Hcl/Timolol Maleat15 claims

Prednisolone Acetate14 claims

Brimonidine Tartrate/Timolol13 claims

QUALITY · MIPS · 2024

Final MIPS score

84.9

Quality

88.7

Cost

66.1

Improvement activities

40.0

Promoting interop.

94.0

Payment adjustment

0.42%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$76

Payment records

By payment type

Food and Beverage$76

REFERRAL NETWORK

Where Michael Drinnan'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). 12 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Jon Keller Pathology · Palo Alto, CA	34	152
Jeffrey Guttas Cardiology · San Mateo, CA	26	79
SARVER, BEVERLY	23	39
Alireza Ghamgosar Podiatry · San Mateo, CA	22	39
Dale Ritzo Internal Medicine · San Mateo, CA	22	69
Harriet Borofsky Diagnostic Radiology · San Mateo, CA	20	26
WEBB, PETER	19	48
John Chow Internal Medicine · San Mateo, CA	17	48
Robert Meints Anesthesiology · Burlingame, CA	12	31
Timothy Offensend Internal Medicine · San Mateo, CA	12	53
NPI 1144281106	12	24
John Connolly Urology · Burlingame, CA	11	17

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