Doctor profile · Federal record
Dr. Mark Zeme, M. D.
Otolaryngology Physician (CMS: Otolaryngology) · Castro Valley, CA
- NPI 1669400388
- Accepts Medicare
- MIPS 0.0 / 100 · 2023
- 39 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
20400 Lake Chabot RD Ste 301
Castro Valley, CA 945465316
(510) 889-6673
fax (510) 889-0913
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- March 4, 2014
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207Y00000X — NUCC code
- State license (1)
- California #G66448
- Medicaid
- CA #00G664480
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669400388. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
936
Distinct HCPCS
10
Medicare allowed
$92,810
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92504 |
Exam of ear using a microscope | 166 | 131 | $38 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 157 | 109 | $107 | |
92570 |
Comprehensive hearing test | 137 | 129 | $38 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 134 | 134 | $132 | |
92553 |
Test for hearing various pitches using earphone and device placed against the bone | 108 | 106 | $59 | |
31231 |
Diagnostic exam of nasal passages using an endoscope | 102 | 77 | $243 | |
G0268 |
Removal of impacted cerumen (one or both ears) by physician on same date of service as audiologic function testing | 62 | 61 | $61 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 27 | 25 | $151 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 22 | 22 | $194 | |
31575 |
Diagnostic exam of voice box using a flexible endoscope | 21 | 21 | $165 |
In context: peer comparison
Among 1 peers in Castro Valley Otolaryngology Physician, average services per provider: 93. This provider delivers 10× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Mark Zeme's medical specialty?
Dr. Mark Zeme practices Otolaryngology Physician in Castro Valley, CA.
Where does Dr. Mark Zeme practice?
Dr. Mark Zeme practices at 20400 Lake Chabot RD Ste 301, Castro Valley, CA 945465316. Office phone: 5108896673.
What is Dr. Mark Zeme's NPI?
Dr. Mark Zeme's National Provider Identifier (NPI) is 1669400388, issued by NPPES.
Does Dr. Mark Zeme accept Medicare assignment?
Yes. Dr. Mark Zeme accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Zeme commonly perform?
Top Medicare-reported procedures in 2023: Exam of ear using a microscope (HCPCS 92504); Established patient office or other outpatient visit (HCPCS 99213); Comprehensive hearing test (HCPCS 92570). Source: CMS Medicare Physician & Other Practitioners file.