Doctor profile · Federal record
Dr. Maria Susan Buhay-Maglunog, M.D.
Rheumatology Physician (CMS: Internal Medicine) · West Covina, CA
- NPI 1699744524
- Accepts Medicare
- 49 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1250 S Sunset Ave, Suite 201
West Covina, CA 917903961
(626) 962-3254
fax (626) 962-1266
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- October 21, 2011
- Year of graduation
- 1977 — 49 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- California #A42390
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1699744524. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
654
Distinct HCPCS
4
Medicare allowed
$85,247
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 548 | 202 | $137 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 53 | 53 | $180 | |
96372 |
Injection of drug or substance under skin or into muscle | 27 | 17 | $16 | |
J1040 |
Injection, methylprednisolone acetate, 80 mg | 26 | 13 | $12 |
In context: peer comparison
Among 1 peers in West Covina Rheumatology Physician, average services per provider: 163. This provider delivers 4.0× the peer median.Open Payments
Industry payments received
All-time total
$2,285
Transactions
109
Manufacturers
12
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 43 | $801.83 | |
| Janssen Biotech, INC. | 21 | $454.29 | |
| Mallinckrodt Hospital Products INC. | 6 | $218.74 | |
| Abbvie INC. | 12 | $199.71 | |
| Alexion Pharmaceuticals, INC. | 7 | $178.78 | |
| Fresenius Kabi USA, LLC | 5 | $97.61 | |
| Novartis Pharmaceuticals Corporation | 5 | $83.27 | |
| Pfizer INC. | 3 | $78.40 | |
| Ani Pharmaceuticals, INC. | 2 | $60.98 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 2 | $52.92 | |
| Genzyme Corporation | 2 | $39.74 | |
| Ucb, INC. | 1 | $18.34 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,682
Patients
431
Total drug cost
$1,987,334
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methotrexate (Methotrexate Sodium) | Brand | 387 | 88 | $16,549 |
| Hydroxychloroquine Sulfate | Generic | 285 | 62 | $15,466 |
| Prednisone | Generic | 255 | 75 | $1,689 |
| Prolia (Denosumab) | Brand | 163 | 103 | $253,522 |
| Enbrel Sureclick (Etanercept) | Brand | 131 | 14 | $953,897 |
| Alendronate Sodium | Generic | 92 | 23 | $989 |
| Rinvoq (Upadacitinib) | Brand | 70 | 12 | $451,908 |
| Allopurinol | Generic | 50 | 0 | $619 |
| Leflunomide | Generic | 40 | 0 | $1,935 |
| Folic Acid | Generic | 39 | 15 | $190 |
Frequently asked questions
What is Dr. Maria Susan Buhay-Maglunog's medical specialty?
Dr. Maria Susan Buhay-Maglunog practices Rheumatology Physician in West Covina, CA.
Where does Dr. Maria Susan Buhay-Maglunog practice?
Dr. Maria Susan Buhay-Maglunog practices at 1250 S Sunset Ave, West Covina, CA 917903961. Office phone: 6269623254.
What is Dr. Maria Susan Buhay-Maglunog's NPI?
Dr. Maria Susan Buhay-Maglunog's National Provider Identifier (NPI) is 1699744524, issued by NPPES.
Does Dr. Maria Susan Buhay-Maglunog accept Medicare assignment?
Yes. Dr. Maria Susan Buhay-Maglunog accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Maria Susan Buhay-Maglunog commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Injection of drug or substance under skin or into muscle (HCPCS 96372). Source: CMS Medicare Physician & Other Practitioners file.