Basma Al Nahlawi, M.D.
NPI 1144455262 · Rheumatology Physician · San Marcos, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Basma Al Nahlawi, M.D. is a Rheumatology Physician provider in San Marcos, CA (NPI 1144455262).
Provider details
- NPI number
- 1144455262
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A115924 (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
17 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
1,254 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 | 678 | $134 |
| Complete Ultrasound Scan of Joint76881 | 251 | $57 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 127 | $97 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 85 | $177 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 58 | $16 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 701 | 177 |
| Methotrexate Sodiumbrand: Methotrexate | 305 | 93 |
| Prednisone | 281 | 108 |
| Allopurinol | 181 | 53 |
| Leflunomide | 153 | 49 |
| Folic Acid | 131 | 42 |
| Meloxicam | 118 | 36 |
| Adalimumab |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,428 across 145 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
- 2009-05-19
- Last updated
- 2023-03-23
- Certified
- 2023-03-23
Frequently asked questions
- What is Basma Al Nahlawi's NPI number?
- Basma Al Nahlawi's National Provider Identifier (NPI) is 1144455262, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Basma Al Nahlawi's specialty?
- Basma Al Nahlawi is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Basma Al Nahlawi located?
- Basma Al Nahlawi's practice location on file with NPPES is 960 W San Marcos Blvd Ste 210, San Marcos, CA 92078-1147.
- What is Basma Al Nahlawi's phone number?
- The practice phone number listed in the NPPES registry for Basma Al Nahlawi is (760) 707-6765.
- Does Basma Al Nahlawi accept Medicare?
- Basma Al Nahlawi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Basma Al Nahlawi's NPI active?
- Yes — Basma Al Nahlawi's NPI (1144455262) is active in the NPPES registry as of the last update on 2023-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.