Doctor profile · Federal record
Dr. Ezekiel Volkert, M.D.
Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · Internal Medicine Physician · Hospitalist Physician · Castro Valley, CA
- NPI 1740505023
- Accepts Medicare
- 16 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
20103 Lake Chabot RD
Castro Valley, CA 945465305
(510) 727-3256
fax (510) 727-3107 - Mailing address
-
3687 Mt Diablo Blvd Ste 200
Lafayette, CA 945493746
Credentials & registration
- NPI registered
- March 2010 — 16 yrs on file
- Profile last updated
- July 21, 2022
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 208M00000X — NUCC code
- State licenses (2)
- California #A138475 · New York #269194
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1740505023. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
831
Distinct HCPCS
6
Medicare allowed
$105,065
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 346 | 181 | $135 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 211 | 139 | $90 | |
99239 |
Hospital discharge day management, more than 30 minutes | 131 | 130 | $132 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 73 | 70 | $197 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 44 | 42 | $147 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 26 | 12 | $56 |
In context: peer comparison
Among 15 peers in this city , average services per provider: 130. This provider delivers 6.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
40
Patients
40
Total drug cost
$9,299
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 15 | 15 | $9,053 |
| Prednisone | Generic | 14 | 14 | $172 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 11 | 11 | $74 |
Hospital affiliations
Frequently asked questions
What is Dr. Ezekiel Volkert's medical specialty?
Dr. Ezekiel Volkert practices Hospitalist Physician in Castro Valley, CA.
Where does Dr. Ezekiel Volkert practice?
Dr. Ezekiel Volkert practices at 20103 Lake Chabot RD, Castro Valley, CA 945465305. Office phone: 5107273256.
What is Dr. Ezekiel Volkert's NPI?
Dr. Ezekiel Volkert's National Provider Identifier (NPI) is 1740505023, issued by NPPES.
Does Dr. Ezekiel Volkert accept Medicare assignment?
Yes. Dr. Ezekiel Volkert accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ezekiel Volkert commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.