Doctor profile · Federal record
Dr. Daisy Maron, M.D.
Hospitalist Physician (CMS: Family Practice) · Family Medicine Physician · Castro Valley, CA
- NPI 1275565954
- Accepts Medicare
- 31 yrs in practice
- Female
- Solo 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
- July 2006 — 20 yrs on file
- Profile last updated
- July 21, 2022
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 208M00000X — NUCC code
- State license (1)
- California #A88109
- Medicaid
- CA #00A881090
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275565954. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
618
Distinct HCPCS
8
Medicare allowed
$91,553
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 233 | 224 | $197 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 131 | 127 | $147 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 105 | 82 | $90 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 40 | 30 | $135 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 39 | 39 | $109 | |
99239 |
Hospital discharge day management, more than 30 minutes | 34 | 34 | $132 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 20 | 20 | $93 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 16 | 16 | $70 |
In context: peer comparison
Among 15 peers in this city , average services per provider: 130. This provider delivers 4.8× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Daisy Maron's medical specialty?
Dr. Daisy Maron practices Hospitalist Physician in Castro Valley, CA.
Where does Dr. Daisy Maron practice?
Dr. Daisy Maron practices at 20103 Lake Chabot RD, Castro Valley, CA 945465305. Office phone: 5107273256.
What is Dr. Daisy Maron's NPI?
Dr. Daisy Maron's National Provider Identifier (NPI) is 1275565954, issued by NPPES.
Does Dr. Daisy Maron accept Medicare assignment?
Yes. Dr. Daisy Maron accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Daisy Maron commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.