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Edit this profileAt a glance
- 5550 Friendship Blvd Ste T90, Chevy Chase, MD 20815
About Dr. Koff
Based in Chevy Chase, MD, Jonathan M. Koff, M.D. is listed in the NPI registry under gastroenterology. Jonathan graduated from Boston University School of Medicine in 1997. According to Medicare claims data, Jonathan cared for 1,284 Medicare patients across 22,579 services. The services billed most often include injection, vedolizumab, intravenous, 1 mg, injection, infliximab, excludes biosimilar, 10 mg, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1104926302 identifies this record in the national registry.
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
- (301) 718-0600
- Email not available
Practice Locations
5550 FRIENDSHIP BLVD STE T90
Chevy Chase, MD 20815
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
22,579 services · 1,284 patients · 16 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 |
227 | More than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
112 | More often than most peers in Gastroenterology |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
53 | As often as other peers in Gastroenterology |
| Insertion of guide wire with dilation of esophagus using a flexible endoscope | Procedure | 43248 |
25 | As often as other peers in Gastroenterology |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
13 | Less often than most peers in Gastroenterology |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
78 | More than most peers in Gastroenterology |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
31 | More often than most peers in Gastroenterology |
| Injection, vedolizumab, intravenous, 1 mg | Drug given | J3380 |
19,800 | More than most peers in Gastroenterology |
| Injection, infliximab, excludes biosimilar, 10 mg | Drug given | J1745 |
1,420 | As often as other peers in Gastroenterology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
373 | More 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 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
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 — 29 related providers in 4 groups
Other gastroenterologists in Chevy Chase 5
Same specialty, same city.
Trained at Boston University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1997 at Boston University School 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 MD who bill this service to Medicare most often.
Common questions
What does Jonathan M. Koff specialize in?
Jonathan M. Koff is a gastroenterologist in Chevy Chase, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Jonathan M. Koff located?
Jonathan M. Koff is listed at 5550 Friendship Blvd Ste T90, Chevy Chase, MD 20815. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Jonathan M. Koff's phone number?
The number on file is (301) 718-0600. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Jonathan M. Koff's NPI number?
Jonathan M. Koff's National Provider Identifier is 1104926302. 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 Jonathan M. Koff train?
Jonathan M. Koff attended Boston University School of Medicine, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How long has Jonathan M. Koff been practicing?
Jonathan M. Koff has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What does Jonathan M. Koff do most often?
According to Medicare billing data, Jonathan M. Koff 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; provides treatments such as administration of chemotherapy into vein, 1 hour or less and infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Jonathan M. Koff confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Jonathan M. Koff. If this is you, claiming it is free.
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