Doctor profile · Federal record
Dr. Mac Chamberlin, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Student in an Organized Health Care Education/Training Program · Student in an Organized Health Care Education/Training Program · Oakland, CA
- NPI 1881085439
- Accepts Medicare
- 9 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1411 E 31St St
Oakland, CA 946021018
(585) 473-2200
Credentials & registration
- NPI registered
- February 2015 — 11 yrs on file
- Profile last updated
- January 30, 2020
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A159057
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881085439. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
58
Distinct HCPCS
2
Medicare allowed
$6,583
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 40 | 40 | $161 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 18 | 18 | $8 |
In context: peer comparison
Among 71 peers in Oakland Emergency Medicine Physician, average services per provider: 73. This provider delivers 0.8× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Mac Chamberlin's medical specialty?
Dr. Mac Chamberlin practices Emergency Medicine Physician in Oakland, CA.
Where does Dr. Mac Chamberlin practice?
Dr. Mac Chamberlin practices at 1411 E 31St St, Oakland, CA 946021018. Office phone: 5854732200.
What is Dr. Mac Chamberlin's NPI?
Dr. Mac Chamberlin's National Provider Identifier (NPI) is 1881085439, issued by NPPES.
Does Dr. Mac Chamberlin accept Medicare assignment?
Yes. Dr. Mac Chamberlin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mac Chamberlin commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.