Doctor profile · Federal record
Dr. Benjamin Mazer, M.D.
Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Baltimore, MD
- NPI 1689022352
- MIPS 74.4 / 100 · 2023
- 10 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
600 N Wolfe St
Baltimore, MD 212870005
(410) 955-3580
fax (410) 550-0075 - Mailing address
-
6201 Greenleigh Ave Dept of
Middle River, MD 212202004
Credentials & registration
- NPI registered
- June 2016 — 10 yrs on file
- Profile last updated
- April 14, 2021
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207ZP0102X — NUCC code
- State license (1)
- Maryland #D88601
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1689022352. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,934
Distinct HCPCS
10
Medicare allowed
$73,307
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 1,062 | 430 | $38 | |
88342 |
Special stained specimen slides to examine tissue, initial procedure | 170 | 136 | $36 | |
88341 |
Special stained specimen slides to examine tissue, each additional procedure | 166 | 69 | $29 | |
88307 |
Pathology examination of tissue using a microscope, moderately high complexity | 110 | 81 | $85 | |
88304 |
Pathology examination of tissue using a microscope, moderately low complexity | 89 | 76 | $12 | |
88172 |
Evaluation of fine needle aspirate | 79 | 37 | $37 | |
88313 |
Special stained specimen slides to examine tissue including interpretation and report | 51 | 41 | $12 | |
88360 |
Microscopic genetic analysis of tumor, manual | 47 | 13 | $43 | |
88302 |
Pathology examination of tissue using a microscope | 30 | 28 | $7 | |
88312 |
Special stained specimen slides to identify organisms including interpretation and report | 29 | 19 | $24 |
In context: peer comparison
Among 49 peers in this city , average services per provider: 135. This provider delivers 14× the peer median.Frequently asked questions
What is Dr. Benjamin Mazer's medical specialty?
Dr. Benjamin Mazer practices Anatomic Pathology & Clinical Pathology Physician in Baltimore, MD.
Where does Dr. Benjamin Mazer practice?
Dr. Benjamin Mazer practices at 600 N Wolfe St, Baltimore, MD 212870005. Office phone: 4109553580.
What is Dr. Benjamin Mazer's NPI?
Dr. Benjamin Mazer's National Provider Identifier (NPI) is 1689022352, issued by NPPES.
Does Dr. Benjamin Mazer accept Medicare assignment?
Dr. Benjamin Mazer does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Benjamin Mazer commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, initial procedure (HCPCS 88342); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341). Source: CMS Medicare Physician & Other Practitioners file.