Dr. Jonathan M. Koff, MD
- Medicare services, 2024
- 22,579
- Medicare patients, 2024
- 829
- Part D claims, 2024
- 741
- Hospital affiliations
- 2
- Industry payments
- $13,992
- Practice address
- 10770 Columbia Pike, Silver Spring, MD 20901
- Practice phone
- Call (240) 531-2832
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Friendship Heights Endoscopy ASC
Silver Spring, Maryland
Find Dr. Koff's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Jonathan M. Koff is a gastroenterologist in Silver Spring, Maryland
Dr. Koff practices at Friendship Heights Endoscopy ASC in Silver Spring, Maryland.
Dr. Koff's NPI, 1104926302, was assigned on September 25, 2006. Dr. Koff graduated from Boston University School of Medicine in 1997. Dr. Koff holds District of Columbia license MD31101.
- NPI
- 1104926302NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941376891
- NPI enumeration date
- September 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (240) 531-2832
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan M. Koff practices at Friendship Heights Endoscopy ASC in Silver Spring, Maryland
Dr. Koff's primary practice is Friendship Heights Endoscopy ASC, at 10770 Columbia Pike, Silver Spring, MD 20901 in Montgomery County. The practice phone is (240) 531-2832.
- Friendship Heights Endoscopy ASC10770 Columbia Pike, Silver Spring, MD 20901 · Montgomery CountyPhone(240) 531-2832
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jonathan M. Koff is affiliated with 5 sites of care and 2 medical groups
Dr. Koff's primary practice is Friendship Heights Endoscopy ASC in Silver Spring, Maryland. Dr. Koff is also affiliated with MedStar Georgetown University Hospital. The medical group on file is Capital Digestive Care. Dmand AI also links Dr. Koff to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jonathan M. Koff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Koff practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Friendship Heights Endoscopy ASC | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan M. Koff is one of 405 gastroenterologists in Maryland
Gastroenterology is Dr. Koff's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Koff is licensed in District of Columbia.
Specialties and state licenses
- Gastroenterology, District of ColumbiaPrimary
Gastroenterologists near Dr. Koff
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jonathan M. Koff billed Medicare for 22,579 services in 2024
CMS data shows 22,579 Medicare services from Dr. Koff across 16 procedure codes in 2024, for 829 Medicare patients. Medicare paid $524,305 for them.
Dr. Koff's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 18,6002024: 21,22014%
- Office and hospital visits
- 2023: 7252024: 726No change
- Surgery
- 2023: 4222024: 4302%
- Tests and treatments
- 2023: 1052024: 1094%
- Other services
- 2023: 702024: 9434%
Where Dr. Koff's Medicare services took place, 2024
- In an office22,05598%
- In a facility5242%
Dr. Koff compared with the Maryland median for gastroenterologists, 2024
- Dr. Koff
- Maryland median
- Medicare services
- 22,579vs 66833.8 times
- Medicare patients
- 829vs 3902.1 times
- Part D claims
- 564vs 39244% above
Medians across 396 gastroenterologists in Maryland with Dmand AI profiles that report each measure.
Dr. Koff's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Koff and other gastroenterologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan M. Koff treated 829 Medicare patients in 2024, average age 76
CMS counts 829 Medicare patients who saw Dr. Koff in 2024. The largest group is 75 to 84, with 400 patients. 72% of them have high cholesterol, and 60% have high blood pressure. 1% are also on Medicaid. Their average risk score is 0.87, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Koff's median patient age at 63, with 47% women.
Dr. Koff's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Koff's Medicare patients by sex, 2024
- Women40048%
- Men42952%
Chronic conditions among Dr. Koff's Medicare patients, 2024
- High cholesterol72%
- High blood pressure60%
- Arthritis41%
- Ischemic heart disease22%
- Cancer21%
- Osteoporosis18%
- Diabetes16%
- Mood disorders16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Koff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women47%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan M. Koff wrote 741 Medicare Part D claims in 2024
In 2024, Dr. Koff wrote 741 Medicare Part D claims for 350 patients. 71% of them were for generic drugs. CMS names the drug for 564 of them, across 14 drugs with 11 or more claims each, at $829,422 in total drug cost. In 2023, CMS named 400 claims across 14 drugs.
Dr. Koff's Part D claims by kind of drug, 2024
- Generic528 claims71%
- Brand-name213 claims29%
Dr. Koff's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Koff's Part D claims, 2024
- Antibiotics3%20 of 741 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4002024: 56441%
Drugs named by CMS: 14 in 2024, 14 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Jonathan M. Koff ranks in the 91st percentile for colonoscopy in Medicare
Dr. Koff accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Koff as offering telehealth. CMS counts 171 procedures of colonoscopy by Dr. Koff, more than 91% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Koff ranks in Medicare procedure volume
- Colonoscopy
- 91st percentile171 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 77th percentile104 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jonathan M. Koff received $13,992 in industry payments from 2016 to 2025
CMS Open Payments shows 511 general payments to Dr. Koff from 49 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 78% of the total. Boston Scientific Corporation paid the most, $2,077.
General payments to Dr. Koff by program year, 2016 to 2025
General payments to Dr. Koff by kind, 2016 to 2025
- Food and beverage$10,89978%
- Consulting fees$3,00021%
- Education$861%
- Travel and lodging$80%
Companies that paid Dr. Koff the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jonathan M. Koff graduated from Boston University School of Medicine
Dr. Koff graduated from Boston University School of Medicine in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jonathan M. Koff's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jonathan M. Koff
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jonathan M. Koff's NPI number?
Dr. Jonathan M. Koff's NPI number is 1104926302. It was assigned on September 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan M. Koff?
Dr. Jonathan M. Koff is a gastroenterologist in Silver Spring, Maryland. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Jonathan M. Koff practice?
Dr. Koff practices at 10770 Columbia Pike, Silver Spring, MD 20901. Dr. Koff's primary practice is Friendship Heights Endoscopy ASC in Silver Spring, Maryland. Dmand AI also links Dr. Koff to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Jonathan M. Koff's office phone number?
The practice phone on file for Dr. Koff is (240) 531-2832.
What is Dr. Jonathan M. Koff's medical license number?
Dr. Koff holds District of Columbia license MD31101.
Which hospitals is Dr. Jonathan M. Koff affiliated with?
Dr. Koff is affiliated with MedStar Georgetown University Hospital. Dmand AI links Dr. Koff to 1 more hospital.
What medical group is Dr. Jonathan M. Koff part of?
Dr. Koff is linked to Capital Digestive Care. Dmand AI links Dr. Koff to 1 more medical group.
Does Dr. Jonathan M. Koff accept Medicare?
Yes. CMS data shows Dr. Koff billed Medicare for 22,579 services in 2024, and Dr. Koff accepts Medicare assignment.
Does Dr. Jonathan M. Koff offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Koff as offering telehealth services.
How many Medicare patients does Dr. Jonathan M. Koff see?
CMS counts 829 Medicare patients who saw Dr. Koff in 2024, with an average age of 76.
Show 5 more questionsShow fewer questions
What services does Dr. Jonathan M. Koff bill to Medicare?
In 2024, Dr. Koff's most billed Medicare services were injected or infused drug (J3380), injected or infused drug (J1745) and office visit, established patient (99213).
Where did Dr. Jonathan M. Koff go to medical school?
Dr. Koff graduated from Boston University School of Medicine in 1997.
What drugs does Dr. Jonathan M. Koff prescribe most?
In 2024 Medicare Part D data, Dr. Koff's most prescribed drugs by claims were Omeprazole, Sod Sulf-Potass Sulf-Mag Sulf and Pantoprazole Sodium.
Has Dr. Jonathan M. Koff received payments from drug or device companies?
CMS Open Payments shows $13,992 in general payments to Dr. Koff from 49 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Jonathan M. Koff been practicing?
Dr. Koff graduated from medical school in 1997, 29 years ago.
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