Physician Profile
Unclaimed ProfileAbout DEFAZIO
Mark L Defazio, MD practices obstetrics/gynecology in Brooklyn, NY. Mark is a 1986 graduate of State University of New York at Stony Brook, School of Medicine. Mark is also listed as specializing in obstetrics & gynecology. Medicare claims data shows Mark provided 432 services to 388 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (718) 836-3721
- Email not available
Practice Locations
1301 82ND ST
Brooklyn, NY 11228
Procedures Most Often Billed to Medicare
432 services · 388 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina | Imaging | 76830 |
28 |
| Complete ultrasound scan of pelvis | Imaging | 76856 |
27 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
77 |
| Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | Billing code | Q0091 |
55 |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | Billing code | G0101 |
54 |
| Detection test by nucleic acid for neisseria gonorrhoeae (gonorrhoeae bacteria), amplified probe technique | Lab test | 87591 |
46 |
| Detection test by nucleic acid for chlamydia trachomatis, amplified probe technique | Lab test | 87491 |
45 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
43 |
| Telephone medical discussion with physician, 5-10 minutes | Office visit | 99441 |
40 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
17 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other obstetrics/gynecology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other obstetrics/gynecology specialists in Brooklyn 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at State University of New York at Stony Brook, School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at State University of New York at Stony Brook, School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 8
Providers in NY who bill this service to Medicare most often.
Common questions
What does Dr. Defazio specialize in?
Dr. Defazio is an obstetrics/gynecology in Brooklyn, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OBSTETRICS/GYNECOLOGY”.
NPI registry
Where is Dr. Defazio located?
Dr. Defazio is listed at 1301 82ND ST, Brooklyn, NY 11228. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Defazio's phone number?
The number on file is (718) 836-3721. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Defazio?
Dr. Defazio's National Provider Identifier is 1073586343. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Defazio go to medical school?
Dr. Defazio attended State University of New York at Stony Brook, School of Medicine, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Defazio have?
Dr. Defazio has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Defazio do most often?
According to Medicare billing data, Dr. Defazio performs imaging including ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina and complete ultrasound scan of pelvis, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Defazio's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Defazio. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.