Doctor profile · Federal record
Dr. Gregory Chambers, MD
Surgery Physician (CMS: General Surgery) · Los Angeles, CA
- NPI 1972546406
- Accepts Medicare
- MIPS 77.8 / 100 · 2023
- 31 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
231 W Vernon Ave Ste 202
Los Angeles, CA 900372779
(323) 238-7192
fax (323) 432-2035 - Mailing address
-
Po Box 91569
Long Beach, CA 908091569
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- November 1, 2017
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- California #A62663
- Medicaid
- CA #00A626630
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1972546406. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
72
Distinct HCPCS
3
Medicare allowed
$6,875
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 38 | 31 | $83 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 23 | 22 | $137 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 11 | 11 | $52 |
In context: peer comparison
Among 50 peers in Los Angeles Surgery Physician, average services per provider: 79. This provider delivers 0.9× the peer median.Open Payments
Industry payments received
All-time total
$5,388
Transactions
23
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Intuitive Surgical, INC. | 3 | $3,033.27 | |
| Tela Bio, INC. | 17 | $2,071.74 | |
| Davol INC. | 2 | $188.14 | |
| Stryker Corporation | 1 | $94.80 |
By nature of payment
Frequently asked questions
What is Dr. Gregory Chambers's medical specialty?
Dr. Gregory Chambers practices Surgery Physician in Los Angeles, CA.
Where does Dr. Gregory Chambers practice?
Dr. Gregory Chambers practices at 231 W Vernon Ave Ste 202, Los Angeles, CA 900372779. Office phone: 3232387192.
What is Dr. Gregory Chambers's NPI?
Dr. Gregory Chambers's National Provider Identifier (NPI) is 1972546406, issued by NPPES.
Does Dr. Gregory Chambers accept Medicare assignment?
Yes. Dr. Gregory Chambers accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Chambers commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.