Doctor profile · Federal record
Dr. Karl Gaal, MD
Hematology (Pathology) Physician (CMS: Pathology) · Anatomic Pathology & Clinical Pathology Physician · Duarte, CA
- NPI 1710943543
- Accepts Medicare
- MIPS 91.9 / 100 · 2023
- 32 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1500 E Duarte RD
Duarte, CA 91010
(626) 359-8111 - Mailing address
-
Po Box 512185
Los Angeles, CA 900510185
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- December 14, 2020
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207ZH0000X — NUCC code
- State license (1)
- California #A60183
- Medicaid
- CA #00A601830
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1710943543. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,583
Distinct HCPCS
10
Medicare allowed
$126,167
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
88341 |
Special stained specimen slides to examine tissue, each additional procedure | 926 | 177 | $30 | |
84165 |
Protein measurement, serum | 456 | 333 | $19 | |
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 445 | 199 | $39 | |
86334 |
Immunologic analysis technique on serum (immunofixation) | 234 | 184 | $19 | |
88360 |
Microscopic genetic analysis of tumor, manual | 232 | 150 | $44 | |
88342 |
Special stained specimen slides to examine tissue, initial procedure | 226 | 188 | $37 | |
85097 |
Bone marrow, smear interpretation | 219 | 187 | $51 | |
88311 |
Preparation of tissue for examination by removing any calcium present | 216 | 184 | $13 | |
88189 |
Flow cytometry technique for dna or cell analysis, 16 or more markers | 189 | 162 | $88 | |
88313 |
Special stained specimen slides to examine tissue including interpretation and report | 75 | 50 | $13 |
In context: peer comparison
Among 6 peers in this city , average services per provider: 157. This provider delivers 23× the peer median.Frequently asked questions
What is Dr. Karl Gaal's medical specialty?
Dr. Karl Gaal practices Hematology (Pathology) Physician in Duarte, CA.
Where does Dr. Karl Gaal practice?
Dr. Karl Gaal practices at 1500 E Duarte RD, Duarte, CA 91010. Office phone: 6263598111.
What is Dr. Karl Gaal's NPI?
Dr. Karl Gaal's National Provider Identifier (NPI) is 1710943543, issued by NPPES.
Does Dr. Karl Gaal accept Medicare assignment?
Yes. Dr. Karl Gaal accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karl Gaal commonly perform?
Top Medicare-reported procedures in 2023: Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Protein measurement, serum (HCPCS 84165); Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305). Source: CMS Medicare Physician & Other Practitioners file.