Doctor profile · Federal record
Dr. Gerard Demers, D.O.
Emergency Medicine Physician (CMS: Emergency Medicine) · Internal Medicine Physician · San Diego, CA
- NPI 1487626032
- Accepts Medicare
- MIPS 73.6 / 100 · 2023
- 28 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
34800 Bob Wilson Dr, Nmcsd- Emergency Department-Suite 118
San Diego, CA 921341005
(619) 532-8276 - Additional location
-
2661 County Highway I
Chippewa Falls, WI 547295407
(715) 723-1811 - Additional location
-
900 W Clairemont Ave
Eau Claire, WI 547016122
(715) 717-4121 - Mailing address
-
3776 Mactibby St
San Diego, CA 921176136
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- January 9, 2020
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- California #20A11662 · Indiana #02002377A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1487626032. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
168
Distinct HCPCS
6
Medicare allowed
$19,038
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 51 | 51 | $166 | |
99284 |
Emergency department visit with moderate level of medical decision making | 35 | 34 | $114 | |
99283 |
Emergency department visit with low level of medical decision making | 27 | 27 | $68 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 25 | 25 | $138 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 18 | 18 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 12 | 12 | $98 |
In context: peer comparison
Among 130 peers in San Diego Emergency Medicine Physician, average services per provider: 67. This provider delivers 2.5× the peer median.Open Payments
Industry payments received
All-time total
$16
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | 1 | $16.32 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
16
Patients
16
Total drug cost
$264
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 16 | 16 | $264 |
Frequently asked questions
What is Dr. Gerard Demers's medical specialty?
Dr. Gerard Demers practices Emergency Medicine Physician in San Diego, CA.
Where does Dr. Gerard Demers practice?
Dr. Gerard Demers practices at 34800 Bob Wilson Dr, San Diego, CA 921341005. Office phone: 6195328276.
What is Dr. Gerard Demers's NPI?
Dr. Gerard Demers's National Provider Identifier (NPI) is 1487626032, issued by NPPES.
Does Dr. Gerard Demers accept Medicare assignment?
Yes. Dr. Gerard Demers accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gerard Demers commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.