Maria Susan Buhay-Maglunog, M.D.
NPI 1699744524 · Rheumatology Physician · West Covina, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Susan Buhay-Maglunog, M.D. is a Rheumatology Physician provider in West Covina, CA (NPI 1699744524).
Provider details
- NPI number
- 1699744524
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A42390 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
546 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 491 | $136 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 31 | $179 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 24 | $16 |
Typical Medicare-allowed amounts for these services range $16–$179 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 389 | 90 |
| Prednisone | 265 | 81 |
| Hydroxychloroquine Sulfate | 221 | 66 |
| Denosumabbrand: Prolia | 149 | 104 |
| Alendronate Sodium | 116 | 28 |
| Etanerceptbrand: Enbrel Sureclick | 105 | 13 |
| Folic Acid | 83 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,285 across 109 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-14
- Last updated
- 2011-10-21
Frequently asked questions
- What is Maria Susan Buhay-Maglunog's NPI number?
- Maria Susan Buhay-Maglunog's National Provider Identifier (NPI) is 1699744524, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Susan Buhay-Maglunog's specialty?
- Maria Susan Buhay-Maglunog is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Susan Buhay-Maglunog located?
- Maria Susan Buhay-Maglunog's practice location on file with NPPES is 1250 S Sunset Ave, West Covina, CA 91790-3961.
- What is Maria Susan Buhay-Maglunog's phone number?
- The practice phone number listed in the NPPES registry for Maria Susan Buhay-Maglunog is (626) 962-3254.
- Does Maria Susan Buhay-Maglunog accept Medicare?
- Maria Susan Buhay-Maglunog is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Susan Buhay-Maglunog's NPI active?
- Yes — Maria Susan Buhay-Maglunog's NPI (1699744524) is active in the NPPES registry as of the last update on 2011-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.