Sam Abaza, M.D.
NPI 1831148501 · Dermatology Physician · Diamond Bar, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sam Abaza, M.D. is a Dermatology Physician provider in Diamond Bar, CA (NPI 1831148501).
Provider details
- NPI number
- 1831148501
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A86393 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,434 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) |
|---|---|---|
| Removal and Microscopic Exam of Growth of Head, Neck, Hands, Feet, Or Genitals, 1-5 Tissue Blocks17311 | 454 | $594 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 320 | $94 |
| Removal and Microscopic Exam of Growth of Head, Neck, Hands, Feet, Or Genitals, Each Additional Stage, 1-5 Tissue Blocks17312 | 316 | $404 |
| Complicated Repair of Wound of Forehead, Cheeks, Chin, Mouth, Neck, Underarms, Genitals, Hands, Or Feet, 2.6-7.5 Cm13132 | 170 | $152 |
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 158 | $7 |
| Biopsy of Related Skin Growth, Each Additional Growth |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 167 | 145 |
| Gentamicin Sulfate | 167 | 151 |
| Betamethasone Dipropionate | 35 | 17 |
| Mupirocin | 23 | 22 |
| Ketoconazole | 22 | — |
| Hydrocortisone | 15 | 13 |
| Triamcinolone Acetonide | 14 | 11 |
| Fluocinonide | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$360 across 11 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
Additional practice locations (2)
- 175 S Harbor BlvdAnaheim, CA 92805-3710Phone: (909) 860-4254
- 631 W Avenue Q Ste BPalmdale, CA 93551-3892Phone: (661) 947-9000Fax: (661) 266-8751
Registry dates
- Enumerated
- 2006-05-09
- Last updated
- 2025-11-17
- Certified
- 2025-11-17
Frequently asked questions
- What is Sam Abaza's NPI number?
- Sam Abaza's National Provider Identifier (NPI) is 1831148501, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sam Abaza's specialty?
- Sam Abaza is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Sam Abaza located?
- Sam Abaza's practice location on file with NPPES is 1111 Grand Ave Ste K, Diamond Bar, CA 91765-4172.
- What is Sam Abaza's phone number?
- The practice phone number listed in the NPPES registry for Sam Abaza is (098) 604-2549.
- Does Sam Abaza accept Medicare?
- Sam Abaza is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sam Abaza's NPI active?
- Yes — Sam Abaza's NPI (1831148501) is active in the NPPES registry as of the last update on 2025-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.