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Edit this profileAt a glance
- 5401 Old York Rd, Klein, Suite 202, Philadelphia, PA 19141
About Dr. Dudnick
Robert S. Dudnick, MD is a healthcare provider in Philadelphia, PA specializing in gastroenterology. According to Medicare claims data, Robert cared for 135 Medicare patients across 137 services. The services billed most often include removal of polyps or growths of large bowel using an endoscope with mechanical snare, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, and biopsy of large bowel using a flexible endoscope. This provider record is associated with NPI 1295833630.
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
- (215) 456-8210
- Email not available
Practice Locations
5401 OLD YORK RD KLEIN, SUITE 202
Philadelphia, PA 19141
Conditions Commonly Evaluated or Treated
Within Gastroenterology 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
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
137 services · 135 patients · 5 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 |
42 | As often as other peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
38 | Less often than most peers in Gastroenterology |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
25 | Less often than most peers in Gastroenterology |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Billing code | G0121 |
20 | As often as other peers in Gastroenterology |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
12 | Less often than most peers in Gastroenterology |
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 gastroenterologists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
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 gastroenterologists in Philadelphia 8
Same specialty, same city.
Trained at Other 7
Other providers in the same specialty who trained at the same institution.
Class of 1986 at Other 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 PA who bill this service to Medicare most often.
Common questions
What does Dr. Dudnick specialize in?
Dr. Dudnick is a gastroenterologist in Philadelphia, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Dr. Dudnick located?
Dr. Dudnick is listed at 5401 Old York Rd Klein, Suite 202, Philadelphia, PA 19141. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Dudnick's phone number?
The number on file is (215) 456-8210. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Dudnick's NPI number?
Dr. Dudnick's National Provider Identifier is 1295833630. 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. Dudnick go to medical school?
Dr. Dudnick attended Other, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Dudnick been practicing?
Dr. Dudnick has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Dudnick do most often?
According to Medicare billing data, Dr. Dudnick performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and biopsy of large bowel using a flexible endoscope. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Dudnick confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Dudnick. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.