Dr. Mark Zeme, MD
20400 Lake Chabot Rd Ste 301, Castro Valley, CA 94546 • +1-450-555-5837
Medical Education: Accredited U.S. Medical School (Class of 2011)
What This Doctor Actually Performs: CMS Medicare Utilization & Castro Valley Percentiles
NPI #1669400388 • CBSA Regional • Otolaryngology
Operating out of Castro Valley, CA (20400 Lake Chabot Rd Ste 301), Otolaryngology clinician Dr. Mark Zeme, MD (accredited MD/DO training, 2011) maintains a focused low-volume boutique caseload (33.33th Castro Valley percentile) (17.94th CA percentile; Z-score -0.20σ across 905 documented services) with sub-specialty concentration in 32 Active CMS HCPCS Codes.
Procedural volume for Dr. Zeme is led by HCPCS 99213 (Focused Ear, Nose, Sinus & Throat Examination — 308 annual services, $147–$202 GPCI cash estimate), followed by CPT 31231 (Diagnostic Rigid/Flexible Nasal & Sinus Endoscopy, 226/yr) and CPT 31575 (Flexible Fiberoptic Laryngoscopy Vocal Cord Inspection, 172/yr).
Direct cash-pay transparency modeling sets Dr. Zeme's baseline new-consult rate near $239.00 in Castro Valley, CA (cash-pay accepted, hybrid in-clinic and telehealth video consults, 17-minute average reception wait).
Patients evaluating Dr. Mark Zeme in ZIP 94546 note 15 years of post-doctoral tenure (null, 2011) alongside 3.7 annual CMS procedures per patient.
Compared against Castro Valley, CA Otolaryngology peers
905 annual services across 245 beneficiaries
Standard deviations from CA Otolaryngology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99213 | Focused Ear, Nose, Sinus & Throat Examination | 308 | 33.33th | $147 – $202 |
| 31231 | Diagnostic Rigid/Flexible Nasal & Sinus Endoscopy | 226 | 33.33th | $296 – $406 |
| 31575 | Flexible Fiberoptic Laryngoscopy Vocal Cord Inspection | 172 | 28.33th | $216 – $296 |
| 92557 | Comprehensive Pure-Tone Audiometry & Speech Recognition | 118 | 33.33th | $104 – $143 |
| 69210 | Instrumented Impacted Cerumen Removal Under Microscopy | 81 | 37.33th | $93 – $127 |
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Dr. Mark Zeme, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Zeme National Provider Identifier | NPI #1669400388 (MD) | CMS NPPES Registry (94546) |
| Dr. Zeme Castro Valley CMS Volume Rank | 33.33th Pct (905 CMS svcs; Z -0.205σ) | CMS Medicare Part B (CA Otolaryngology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Castro Valley, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 17 min lobby wait | 19 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.63/5 Listening • 4.94/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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