Active NPI
Sam Abaza, M.D.
- Dermatology Physician
- Diamond Bar, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Dermatology Physician
- License
- A86393
- Practice address
- 1111 Grand Ave Ste K
Diamond Bar, CA 91765-4172 - Phone
- (098) 604-2549
- NPI assigned
- May 9, 2006
- Last updated
- Nov 17, 2025
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Dermatology Physician | 207N00000X | A86393 | CA | Primary |
| MOHS-Micrographic Surgery Physician | 207ND0101X | A86393 | CA |
Addresses
Primary practice location
1111 Grand Ave Ste K
Diamond Bar, CA 91765-4172
Mailing address
1111 Grand Ave Ste K
Diamond Bar, CA 91765-4172
Phone (098) 604-2549
Other practice location 1
631 W Avenue Q Ste B
Palmdale, CA 93551-3892
Phone (661) 947-9000
Other practice location 2
175 S Harbor Blvd
Anaheim, CA 92805-3710
Phone (909) 860-4254
Other names 1
- Moutasem Abaza
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Dermatology
- Education
- Other, 1993
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1111 Grand Ave
Suite K
Diamond Bar, CA 91765-4172
Phone (909) 860-4254
5600 California Ave
Bakersfield, CA 93309-1614
Phone (661) 322-2700
Merit-based Incentive Payment System (MIPS)
- Final score
- 91.69 of 100
- Quality
- 91.59
- Promoting interoperability
- 94
- Improvement activities
- 40
- Cost
- 76.9
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Melanoma (skin cancer) excision | 47 |
| Removal of skin lesions | 153 |
| Removal of skin cancer | 761 |
| Removal of nail tissue | 1-10 |
| Removal or shaving of skin growth | 46 |
| Skin biopsy | 102 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A86393 | CA | MD | MOHS-Micrographic Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Dermesurge Inc | Current | Accepting new patients | |
| Dermesurge Inc | Dermatology | Current | Accepting new patients |
| Family Primary and Specialty Care Clinic | Current | Accepting new patients | |
| La Laser Center PC, a Professional Medical Corporation | Past | Accepting new patients | |
| Bakersfield Memorial Hospital | Past | Accepting new patients | |
| La Laser Center PC, a Professional Medical Corporation | Past | Accepting new patients | |
| La Laser Center PC, a Professional Medical Corporation | Past | Accepting new patients | |
| Antelope Valley Surgery Center, PC | Past | Accepting new patients | |
| Fresno Specialty Surgery Center PC | Past | Accepting new patients | |
| Hanford Specialty Surgery Center, PC | Past | Accepting new patients |
Locations
175 S Harbor Blvd
Anaheim, CA 92805
Phone (909) 860-4254
1111 Grand Ave
Ste K
Diamond Bar, CA 91765
Phone (909) 860-4254
631 W Avenue Q
Ste B
Palmdale, CA 93551
Phone (661) 425-0295
1210 Nevada St
Redlands, CA 92374
Phone (909) 809-5250
1210 Nevada St
Ste 100
Redlands, CA 92374
Networks
- BSC 65 PLUS INDIVIDUAL MAPD
Organizations & group practices 11
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Dermatology Physician
- Diamond Bar, CA
- NPI 1538743752
-
- Multi-Specialty Clinic/Center
- San Clemente, CA
- NPI 1306982855
-
- Family Medicine Physician
- Redlands, CA
- NPI 1871487199
-
- Medical Specialty Clinic/Center
- Diamond Bar, CA
- NPI 1487421988
-
- Ambulatory Surgical Clinic/Center
- Palmdale, CA
- NPI 1831496231
-
dba Bakersfield Memorial Hospital Pharmacy
- Institutional Pharmacy
- Bakersfield, CA
- NPI 1144256363
-
- Ambulatory Surgical Clinic/Center
- Fresno, CA
- NPI 1861930729
-
- Ambulatory Surgical Clinic/Center
- Hanford, CA
- NPI 1891133302
-
dba Visalia Dermatology & Skin Cancer
- Non-Pharmacy Dispensing Site
- Visalia, CA
- NPI 1083247795
-
dba Dermatology & Skin Cancer of Bakersfield 4
- Non-Pharmacy Dispensing Site
- Delano, CA
- NPI 1316572068
-
dba Skin and Cancer Institute - Turlock
- Non-Pharmacy Dispensing Site
- Turlock, CA
- NPI 1356974059
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1147132800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1763337600000",
"number": "1831148501",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1111 GRAND AVE STE K",
"city": "DIAMOND BAR",
"state": "CA",
"postal_code": "917654172",
"telephone_number": "098-604-2549"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1111 GRAND AVE STE K",
"city": "DIAMOND BAR",
"state": "CA",
"postal_code": "917654172",
"telephone_number": "098-604-2549"
}
],
"practiceLocations": [
{
"address_1": "631 W Avenue Q Ste B",
"address_purpose": "LOCATION",
"city": "Palmdale",
"state": "CA",
"postal_code": "935513892",
"country_code": "US",
"telephone_number": "661-947-9000",
"fax_number": "661-266-8751",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "175 S Harbor Blvd",
"address_purpose": "LOCATION",
"city": "Anaheim",
"state": "CA",
"postal_code": "928053710",
"country_code": "US",
"telephone_number": "909-860-4254",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "ABAZA",
"first_name": "SAM",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-05-09",
"last_updated": "2025-11-17",
"certification_date": "2025-11-17",
"status": "A"
},
"taxonomies": [
{
"code": "207N00000X",
"taxonomy_group": "",
"desc": "Dermatology",
"state": "CA",
"license": "A86393",
"primary": true
},
{
"code": "207ND0101X",
"taxonomy_group": "",
"desc": "Dermatology, MOHS-Micrographic Surgery",
"state": "CA",
"license": "A86393",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "MOUTASEM",
"last_name": "ABAZA",
"credential": "MD",
"code": "1",
"type": "Former Name"
}
]
}
Other providers in Diamond Bar, CA
- A Beloved Home of Diamond Bar LLC
- A-One Medical Group, Inc. a Professional Corporation
- A-One Medical Group, Inc. a Professional Corporation
- A&J Rehab Inc
- Abans Inc (Amada Senior Care Pomona CA)
- Abba Hospice Inc
- Raghad Abdo
- Kristofer Abejuela
- Aberdeen Care LLC Dba Diamond Bar Rcfe
- Ritz-Albert Ablaza, PTA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 17, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.