Physician Profile
Unclaimed ProfileAbout AHN
Anna Ahn, M.D. practises pulmonary disease in Stony Brook, NY. Anna is a 2003 graduate of New York Medical College. Anna is also listed as specialising in internal medicine.
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
Common questions
What does Dr. Ahn specialise in?
Dr. Ahn is a pulmonary disease in Stony Brook, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PULMONARY DISEASE”.
NPI registry
Where is Dr. Ahn located?
Dr. Ahn is listed at MEDICAL STAFF OFFICE T9 STONY BROOK UNIVERSITY HOSPITAL, Stony Brook, NY 11794. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Ahn's phone number?
The number on file is (631) 444-2754. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Ahn?
Dr. Ahn's National Provider Identifier is 1700105533. 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. Ahn go to medical school?
Dr. Ahn attended New York Medical College, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Ahn have?
Dr. Ahn has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Ahn do most often?
According to Medicare billing data, Dr. Ahn provides treatments such as test to examine how well the lungs exchange gases and test to determine lung volumes using gas dilution or washout, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Ahn's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ahn. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (631) 444-2754
- Email not available
Practice Locations
MEDICAL STAFF OFFICE T9 STONY BROOK UNIVERSITY HOSPITAL
Stony Brook, NY 11794
Procedures Most Often Billed to Medicare
1,432 services · 1,087 patients · 13 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
110 |
| Test to determine lung volumes using gas dilution or washout | Treatment | 94727 |
110 |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
86 |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
26 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
334 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
276 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
270 |
| Counseling visit to discuss need for lung cancer screening using low dose ct scan (ldct) (service is for eligibility determination and shared decision making) | Billing code | G0296 |
78 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
63 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
26 |
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 3
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 Stony Brook 8
Same specialty, same city.
Trained at New York Medical College 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2003 at New York Medical College 8
Providers who graduated from the same medical school in the same year.
Also performs Test to examine how well the lungs exchange gases 8
Providers in NY who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.