Dr. Michael Drinnan, MD
101 S San Mateo DR, Suite 310, San Mateo, CA 94401 • +1-670-555-8946
Medical Education: Accredited U.S. Medical School (Class of 1992)
What This Doctor Actually Performs: CMS Medicare Utilization & San Mateo Percentiles
NPI #1609883024 • CBSA Regional • Ophthalmology
Anchored in San Mateo, CA 94401, Dr. Michael Drinnan, MD (NPI 1609883024) logged 1,116 annual procedures (focused low-volume boutique caseload (0th San Mateo percentile), 13.34th CA percentile, -0.41σ) with sub-specialty concentration in 20 Active CMS HCPCS Codes.
Procedural volume for Dr. Drinnan is led by HCPCS 92014 (Comprehensive Ophthalmologic Slit-Lamp & Dilated Retinal Exam — 413 annual services, $298–$408 GPCI cash estimate), followed by CPT 92134 (Scanning Computerized Ophthalmic Retinal OCT Imaging, 290/yr) and CPT 92083 (Extended Threshold Visual Field Glaucoma Perimetry, 190/yr).
For out-of-network patients contacting +1-670-555-8946, Dr. Drinnan's practice posts a $239.00 GPCI self-pay consult estimate ($239.00 patient-logged median, 4.58/5 composite reality score over 21 submissions).
Patients evaluating Dr. Michael Drinnan in ZIP 94401 note 34 years of post-doctoral tenure (null, 1992) alongside 2.7 annual CMS procedures per patient.
Compared against San Mateo, CA Ophthalmology peers
1,116 annual services across 411 beneficiaries
Standard deviations from CA Ophthalmology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 92014 | Comprehensive Ophthalmologic Slit-Lamp & Dilated Retinal Exam | 413 | 12th | $298 – $408 |
| 92134 | Scanning Computerized Ophthalmic Retinal OCT Imaging | 290 | 12th | $164 – $225 |
| 92083 | Extended Threshold Visual Field Glaucoma Perimetry | 190 | 12th | $197 – $270 |
| 92004 | New Patient Complete Medical Eye & IOP Evaluation | 134 | 12th | $359 – $491 |
| 66984 | Extracapsular Cataract Removal w/ Intraocular Lens Implant | 89 | 12th | $1313 – $1799 |
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Dr. Michael Drinnan, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Drinnan National Provider Identifier | NPI #1609883024 (MD) | CMS NPPES Registry (94401) |
| Dr. Drinnan San Mateo CMS Volume Rank | 0.00th Pct (1,116 CMS svcs; Z -0.410σ) | CMS Medicare Part B (CA Ophthalmology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (San Mateo, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 9 min lobby wait | 21 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.81/5 Listening • 4.62/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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