Physician Profile
Joshua Raphael Korzenik, M.D.
Unclaimed ProfileAbout Dr. Korzenik
Joshua Raphael Korzenik, M.D. is a healthcare provider in Boston, MA specializing in gastroenterology. Joshua Raphael trained at Albert Einstein College of Medicine of Yeshiva University, graduating in 1980. According to Medicare claims data, Joshua Raphael cared for 134 Medicare patients across 218 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more and biopsy of large bowel using a flexible endoscope. This provider record is associated with NPI 1336194752.
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
- (617) 732-5500
- Email not available
Practice Locations
75 FRANCIS ST
Boston, MA 02115
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
218 services · 134 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
20 | Less often than most peers in Gastroenterology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
198 | More 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 4
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 Boston 7
Same specialty, same city.
Trained at Albert Einstein College of Medicine of Yeshiva University 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at Albert Einstein College of Medicine of Yeshiva University 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 8
Providers in MA who bill this service to Medicare most often.
Common questions
What kind of doctor is Joshua Raphael Korzenik?
Joshua Raphael Korzenik is a gastroenterologist in Boston, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
What is Joshua Raphael Korzenik's address?
Joshua Raphael Korzenik is listed at 75 Francis St, Boston, MA 02115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Joshua Raphael Korzenik?
The number on file is (617) 732-5500. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Joshua Raphael Korzenik's NPI number?
Joshua Raphael Korzenik's National Provider Identifier is 1336194752. 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 Joshua Raphael Korzenik train?
Joshua Raphael Korzenik attended Albert Einstein College of Medicine of Yeshiva University, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How long has Joshua Raphael Korzenik been practicing?
Joshua Raphael Korzenik has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What procedures does Joshua Raphael Korzenik perform?
According to Medicare billing data, Joshua Raphael Korzenik performs procedures including biopsy of large bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Joshua Raphael Korzenik confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Joshua Raphael Korzenik. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.