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Edit this profileWhere to find Nicholas J. Ahn, M.D.
- Stony Brook location main office
Health Science Tower Level 19, Room 030, Stony Brook, NY 11794 - Albany location
47 New Scotland Ave, Department of Surgery, Albany, NY 12208
About Dr. Ahn
Nicholas J. Ahn, M.D. practices surgery in Stony Brook, NY. Nicholas is a 2013 graduate of Pennsylvania State University College of Medicine. Nicholas is also listed as specializing in student in an organized health care education program. Medicare claims data shows Nicholas provided 163 services to 151 patients. The services billed most often include new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and removal of polyps or growths of large bowel using an endoscope with mechanical snare. The provider's National Provider Identifier (NPI) is 1912341447.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (631) 444-1791
- Email not available
Practice Locations
HEALTH SCIENCE TOWER LEVEL 19, ROOM 030
Stony Brook, NY 11794
47 New Scotland Ave Department of Surgery
Albany, NY 12208
Conditions Commonly Evaluated or Treated
Within Surgery (Unspecified) generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Breast conditions
Cancer
- Colon cancer
- Esophageal cancer
- Liver cancer
- Neuroendocrine Tumors
- Pancreatic cancer
- Soft-tissue sarcoma
- Stomach cancer
- Thyroid cancer
Colorectal
Digestive
- Abdominal adhesions
- Acid reflux
- Acute pancreatitis
- Bowel obstruction
- Colon polyps
- Diverticulitis
- Gastroparesis
- Peptic ulcer disease
Digestive & blood
Digestive health
- Crohn's disease
- Fecal incontinence
- Perforated bowel
- Severe chronic constipation
- Swallowing difficulties
- Ulcerative colitis
Endocrine
Infections
Lumps & bumps
Lymphatic
Minor surgery
Skin & scars
Skin & soft tissue
Skin cancer
Vascular
Weight & metabolism
Wound care
Wounds
Procedures & services
Endocrine
Vascular
Wounds
Most searched procedures
Abdominal
Abdominal surgery
Bariatric
Breast surgery
Cancer
Cancer surgery
Colorectal
- Anal fistula surgery
- Anal Sphincter Repair
- Colon resection
- Hemorrhoid removal
- Ostomy reversal
- Ostomy surgery
- Rectal prolapse repair
- Surgery for chronic anal fissure
Consultations
Diagnostic
Digestive
Digestive health
Infections
Minor surgery
- Fishhook or embedded splinter removal
- Ingrown toenail removal
Post-op care
Reconstruction
Skin & soft tissue
- Cyst Removal
- Lipoma removal
- Mole removal
- Pilonidal cyst surgery
- Scar revision surgery
- Skin Tag Removal
Skin cancer
Vascular & cancer
Weight loss
Wound care
Procedures Most Often Billed to Medicare
163 services · 151 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
23 | As often as other peers in Surgery |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
20 | More often than most peers in Surgery |
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
17 | Less often than most peers in Surgery |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
12 | Less often than most peers in Surgery |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
52 | More often than most peers in Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
39 | As often as other peers in Surgery |
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 general surgeons at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 31 related providers in 4 groups
Other general surgeons in Stony Brook 7
Same specialty, same city.
Trained at Pennsylvania State University College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2013 at Pennsylvania State University College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of polyps or growths of large bowel using an endoscope with mechanical snare 8
Providers in NY who bill this service to Medicare most often.
Common questions
What is Nicholas J. Ahn's specialty?
Nicholas J. Ahn is a general surgeon in Stony Brook, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Surgery”.
NPI registry
Where can I find Nicholas J. Ahn?
Nicholas J. Ahn is listed at Health Science Tower Level 19, Room 030, Stony Brook, NY 11794. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Nicholas J. Ahn?
The number on file is (631) 444-1791. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Nicholas J. Ahn?
Nicholas J. Ahn's National Provider Identifier is 1912341447. 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
What is Nicholas J. Ahn's education?
Nicholas J. Ahn attended Pennsylvania State University College of Medicine, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Nicholas J. Ahn have?
Nicholas J. Ahn has 13 years experience. Calculated from a graduation year of 2013, reported in the CMS National Downloadable File.
CMS public data
What is Nicholas J. Ahn known for?
According to Medicare billing data, Nicholas J. Ahn performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare, diagnostic exam of large bowel using a flexible endoscope and diagnostic exam of anus using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Nicholas J. Ahn's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Nicholas J. Ahn. If this is you, claiming it is free.
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