Doctor profile · Federal record
Dr. Robert Wielenga, M.D.
Family Medicine Physician (CMS: Family Practice) · Downey, CA
- NPI 1952469850
- Accepts Medicare
- 33 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10835 New St
Downey, CA 902413714
(562) 923-9100
fax (562) 923-9103
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- February 26, 2020
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #G81044
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1952469850. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,525
Distinct HCPCS
10
Medicare allowed
$116,045
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 360 | 181 | $139 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 345 | 189 | $98 | |
J0696 |
Injection, ceftriaxone sodium, per 250 mg | 165 | 29 | $1 | |
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 154 | 27 | $0 | |
96372 |
Injection of drug or substance under skin or into muscle | 91 | 49 | $16 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 68 | 65 | $16 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 57 | 50 | $194 | |
81002 |
Urinalysis, manual test | 54 | 33 | $3 | |
J1885 |
Injection, ketorolac tromethamine, per 15 mg | 52 | 12 | $1 | |
99211 |
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 37 | 29 | $26 |
In context: peer comparison
Among 12 peers in this city , average services per provider: 100. This provider delivers 15× the peer median.Open Payments
Industry payments received
All-time total
$1,651
Transactions
81
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen Inc. | 13 | $229.39 | |
| Radius Health, Inc. | 7 | $174.96 | |
| Lilly USA, LLC | 8 | $164.26 | |
| Novo Nordisk Inc | 18 | $148.34 | |
| ABBVIE INC. | 6 | $141.13 | |
| Xeris Pharmaceuticals, Inc. | 5 | $92.83 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 3 | $78.20 | |
| Janssen Pharmaceuticals, Inc | 4 | $70.49 | |
| AstraZeneca Pharmaceuticals LP | 4 | $67.14 | |
| SHIELD THERAPEUTICS INC | 3 | $66.46 | |
| GlaxoSmithKline, LLC. | 3 | $50.41 | |
| SCILEX PHARMACEUTICALS INC. | 2 | $45.10 | |
| Lundbeck LLC | 2 | $35.53 | |
| Sumitomo Pharma America, Inc. | 1 | $31.98 | |
| PFIZER INC. | 2 | $31.86 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
9,941
Patients
3,388
Total drug cost
$276,516
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 1,352 | 441 | $35,064 |
| Losartan Potassium | Generic | 1,018 | 327 | $26,707 |
| Amlodipine Besylate | Generic | 982 | 325 | $18,227 |
| Levothyroxine Sodium | Generic | 957 | 284 | $23,200 |
| Metformin Hcl | Generic | 700 | 234 | $17,191 |
| Gabapentin | Generic | 604 | 241 | $16,120 |
| Tamsulosin Hcl | Generic | 595 | 201 | $21,773 |
| Rosuvastatin Calcium | Generic | 578 | 198 | $26,106 |
| Pantoprazole Sodium | Generic | 533 | 197 | $12,913 |
| Escitalopram Oxalate | Generic | 517 | 188 | $12,578 |
Frequently asked questions
What is Dr. Robert Wielenga's medical specialty?
Dr. Robert Wielenga practices Family Medicine Physician in Downey, CA.
Where does Dr. Robert Wielenga practice?
Dr. Robert Wielenga practices at 10835 New St, Downey, CA 902413714. Office phone: 5629239100.
What is Dr. Robert Wielenga's NPI?
Dr. Robert Wielenga's National Provider Identifier (NPI) is 1952469850, issued by NPPES.
Does Dr. Robert Wielenga accept Medicare assignment?
Yes. Dr. Robert Wielenga accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Wielenga commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Injection, ceftriaxone sodium, per 250 mg (HCPCS J0696). Source: CMS Medicare Physician & Other Practitioners file.