Doctor profile · Federal record
Dr. Margarita Symonian Silver, M.D.
Nephrology Physician (CMS: Nephrology) · Los Angeles, CA
- NPI 1528140696
- Accepts Medicare
- 39 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
201 S Alvarado St, Suite 808
Los Angeles, CA 900572320
(213) 413-2929
fax (213) 413-5936 - Mailing address
-
2645 33Rd St
Santa Monica, CA 904053110
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- June 6, 2014
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- California #A70249
- Medicaid
- CA #00A702490
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1528140696. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
628
Distinct HCPCS
6
Medicare allowed
$168,666
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 371 | 41 | $374 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 82 | 29 | $138 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 66 | 15 | $83 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 41 | 11 | $125 | |
90935 |
Hemodialysis procedure with physician evaluation | 40 | 15 | $75 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 28 | 18 | $182 |
In context: peer comparison
Among 51 peers in Los Angeles Nephrology Physician, average services per provider: 251. This provider delivers 2.5× the peer median.Open Payments
Industry payments received
All-time total
$562
Transactions
24
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Akebia Therapeutics INC | 6 | $164.61 | |
| Ardelyx, INC. | 9 | $134.45 | |
| Genzyme Corporation | 1 | $120.85 | |
| Amgen INC. | 2 | $49.23 | |
| AstraZeneca Pharmaceuticals Lp | 3 | $49.21 | |
| Fresenius USA Marketing, INC. | 2 | $28.93 | |
| Ani Pharmaceuticals, INC. | 1 | $14.59 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
642
Patients
134
Total drug cost
$70,717
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Calcium Acetate | Generic | 72 | 19 | $5,032 |
| Furosemide | Generic | 72 | 22 | $598 |
| Amlodipine Besylate | Generic | 53 | 12 | $681 |
| Sevelamer Carbonate | Generic | 48 | 14 | $18,719 |
| Levofloxacin | Generic | 47 | 22 | $324 |
| Levothyroxine Sodium | Generic | 46 | 0 | $677 |
| Vascepa (Icosapent Ethyl) | Brand | 45 | 0 | $16,479 |
| Carvedilol | Generic | 40 | 11 | $604 |
| Tramadol Hcl | Generic | 36 | 0 | $226 |
| Azithromycin | Generic | 33 | 21 | $265 |
Hospital affiliations
Frequently asked questions
What is Dr. Margarita Symonian Silver's medical specialty?
Dr. Margarita Symonian Silver practices Nephrology Physician in Los Angeles, CA.
Where does Dr. Margarita Symonian Silver practice?
Dr. Margarita Symonian Silver practices at 201 S Alvarado St, Los Angeles, CA 900572320. Office phone: 2134132929.
What is Dr. Margarita Symonian Silver's NPI?
Dr. Margarita Symonian Silver's National Provider Identifier (NPI) is 1528140696, issued by NPPES.
Does Dr. Margarita Symonian Silver accept Medicare assignment?
Yes. Dr. Margarita Symonian Silver accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margarita Symonian Silver commonly perform?
Top Medicare-reported procedures in 2023: Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.