Physician Profile
Unclaimed ProfileAbout ASHKAR
John Antonios Ashkar, M.D. is a healthcare provider in Brooklyn, NY specializing in pulmonary disease. John is also listed as specializing in internal medicine, critical care medicine, and sleep medicine. According to Medicare claims data, John cared for 2,150 Medicare patients across 6,322 services.
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) 621-7100
- Email not available
Practice Locations
355 OVINGTON AVENUE SUITE 202
Brooklyn, NY 11209
Procedures Most Often Billed to Medicare
6,322 services · 2,150 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
178 |
| Test to determine lung volumes using gas dilution or washout | Treatment | 94727 |
246 |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
233 |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
185 |
| Test for exercise-induced heart and lung stress | Treatment | 94621 |
152 |
| Assessment of emotional or behavioral problems | Treatment | 96127 |
124 |
| Influenza vaccine, inactivated | Treatment | 90653 |
51 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
29 |
| Evaluation of use of breathing device | Treatment | 94664 |
15 |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
1,691 |
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.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other pulmonary diseases in Brooklyn 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1996 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in NY who bill this service to Medicare most often.
Common questions
What does Dr. Ashkar specialize in?
Dr. Ashkar is a pulmonary disease in Brooklyn, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PULMONARY DISEASE”.
NPI registry
Where is Dr. Ashkar located?
Dr. Ashkar is listed at 355 OVINGTON AVENUE SUITE 202, Brooklyn, NY 11209. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Ashkar's phone number?
The number on file is (718) 621-7100. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Ashkar's NPI number?
Dr. Ashkar's National Provider Identifier is 1073568184. 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. Ashkar go to medical school?
Dr. Ashkar attended Other, graduating in 1996. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ashkar been practicing?
Dr. Ashkar has 30 years experience. Calculated from a graduation year of 1996, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Ashkar do most often?
According to Medicare billing data, Dr. Ashkar performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as test to determine lung volumes using gas dilution or washout and test to examine how well the lungs exchange gases, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Ashkar confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ashkar. 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.