Doctor profile · Federal record
Dr. Patricia Gillis, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Northridge, CA
- NPI 1922058288
- Accepts Medicare
- 27 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
18300 Roscoe Blvd
Northridge, CA 91328
(818) 885-8500 - Mailing address
-
Po Box 12410
Westminster, CA 926851241
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- December 12, 2013
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A73899
- Medicaid
- CA #00A738990
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922058288. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,519
Distinct HCPCS
10
Medicare allowed
$122,101
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99211 |
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 918 | 780 | $26 | |
87426 |
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus | 522 | 438 | $35 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 209 | 191 | $137 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 205 | 190 | $97 | |
81001 |
Manual urinalysis test with examination using microscope, automated | 113 | 100 | $3 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 80 | 80 | $121 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 71 | 71 | $178 | |
71046 |
X-ray of chest, 2 views | 68 | 68 | $38 | |
87804 |
Detection test by immunoassay with direct visual observation for influenza virus | 53 | 28 | $16 | |
36415 |
Insertion of needle into vein for collection of blood sample | 41 | 38 | $8 |
In context: peer comparison
Among 6 peers in Northridge Emergency Medicine Physician, average services per provider: 112. This provider delivers 22× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
247
Patients
240
Total drug cost
$3,621
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) | Brand | 37 | 34 | $705 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 34 | 33 | $340 |
| Cephalexin | Generic | 33 | 32 | $274 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 29 | 28 | $1,058 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 25 | 24 | $172 |
| Paxlovid (Eua) (Nirmatrelvir/Ritonavir) | Brand | 24 | 24 | $255 |
| Azithromycin | Generic | 22 | 22 | $98 |
| Mupirocin | Generic | 20 | 20 | $207 |
| Doxycycline Hyclate | Generic | 12 | 12 | $154 |
| Azelastine Hcl | Generic | 11 | 11 | $358 |
Frequently asked questions
What is Dr. Patricia Gillis's medical specialty?
Dr. Patricia Gillis practices Emergency Medicine Physician in Northridge, CA.
Where does Dr. Patricia Gillis practice?
Dr. Patricia Gillis practices at 18300 Roscoe Blvd, Northridge, CA 91328. Office phone: 8188858500.
What is Dr. Patricia Gillis's NPI?
Dr. Patricia Gillis's National Provider Identifier (NPI) is 1922058288, issued by NPPES.
Does Dr. Patricia Gillis accept Medicare assignment?
Yes. Dr. Patricia Gillis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patricia Gillis commonly perform?
Top Medicare-reported procedures in 2023: Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (HCPCS 99211); Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (HCPCS 87426); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.