Doctor profile · Federal record
Dr. Tanzina Nasreen, M.D.
Nephrology Physician (CMS: Nephrology) · Los Alamitos, CA
- NPI 1649454638
- Accepts Medicare
- 28 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10941 Bloomfield St, Suite A
Los Alamitos, CA 907202530
(562) 596-1667
fax (562) 598-6867 - Mailing address
-
Po Box 1127
Los Alamitos, CA 907201127
Credentials & registration
- NPI registered
- December 2007 — 19 yrs on file
- Profile last updated
- August 6, 2008
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- California #A92620
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1649454638. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,645
Distinct HCPCS
7
Medicare allowed
$214,253
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 881 | 127 | $83 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 267 | 67 | $125 | |
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 122 | 21 | $374 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 116 | 38 | $118 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 97 | 87 | $182 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 85 | 21 | $311 | |
99457 |
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 77 | 16 | $53 |
In context: peer comparison
Among 4 peers in Los Alamitos Nephrology Physician, average services per provider: 257. This provider delivers 6.4× the peer median.Open Payments
Industry payments received
All-time total
$95
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Travere Therapeutics, INC. | 1 | $94.60 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
771
Patients
215
Total drug cost
$206,212
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 107 | 38 | $1,808 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 78 | 29 | $88,825 |
| Sevelamer Carbonate | Generic | 74 | 19 | $30,244 |
| Furosemide | Generic | 71 | 22 | $666 |
| Atorvastatin Calcium | Generic | 63 | 18 | $978 |
| Plenamine (Parenteral Amino Acid 15% No.6) | Brand | 49 | 0 | $4,362 |
| Nifedipine ER (Nifedipine) | Brand | 47 | 16 | $3,183 |
| Calcium Acetate | Generic | 41 | 0 | $4,485 |
| Gabapentin | Generic | 40 | 18 | $1,008 |
| Velphoro (Sucroferric Oxyhydroxide) | Brand | 39 | 0 | $66,604 |
Hospital affiliations
Frequently asked questions
What is Dr. Tanzina Nasreen's medical specialty?
Dr. Tanzina Nasreen practices Nephrology Physician in Los Alamitos, CA.
Where does Dr. Tanzina Nasreen practice?
Dr. Tanzina Nasreen practices at 10941 Bloomfield St, Los Alamitos, CA 907202530. Office phone: 5625961667.
What is Dr. Tanzina Nasreen's NPI?
Dr. Tanzina Nasreen's National Provider Identifier (NPI) is 1649454638, issued by NPPES.
Does Dr. Tanzina Nasreen accept Medicare assignment?
Yes. Dr. Tanzina Nasreen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tanzina Nasreen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960). Source: CMS Medicare Physician & Other Practitioners file.