Jonathan Koff, M.D.
NPI 1104926302 · Gastroenterology Physician · Chevy Chase, MD
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Koff, M.D. is a Gastroenterology Physician provider in Chevy Chase, MD (NPI 1104926302).
Provider details
- NPI number
- 1104926302
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD31101 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,359 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 373 | $100 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 227 | $271 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 135 | $81 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 134 | $124 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 112 | $92 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 112 | 41 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 90 | 89 |
| Pantoprazole Sodium | 86 | 32 |
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 85 | 81 |
| Rabeprazole Sodium | 31 | 14 |
| Ustekinumabbrand: Stelara | 28 | — |
| Esomeprazole Magnesium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,161 across 100 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-25
- Last updated
- 2023-02-01
- Certified
- 2022-12-27
Frequently asked questions
- What is Jonathan Koff's NPI number?
- Jonathan Koff's National Provider Identifier (NPI) is 1104926302, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Koff's specialty?
- Jonathan Koff is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Koff located?
- Jonathan Koff's practice location on file with NPPES is 5550 Friendship Blvd Ste T90, Chevy Chase, MD 20815-7313.
- What is Jonathan Koff's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Koff is (301) 718-0600.
- Does Jonathan Koff accept Medicare?
- Jonathan Koff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Koff's NPI active?
- Yes — Jonathan Koff's NPI (1104926302) is active in the NPPES registry as of the last update on 2023-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.