Dr. Jonathan Koff, MD
- Medicare services, 2024
- 171
- Medicare patients, 2024
- 86
- Part D claims, 2024
- 181
- MIPS score, 2024
- 87
- Hospital affiliations
- 2
- Practice address
- 50 Division St, New Haven, CT 06511
- Practice phone
- Call (203) 785-2140
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Yale Medicine
New Haven, Connecticut
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 Koff is a pulmonologist in New Haven, Connecticut
Dr. Koff practices at Yale Medicine in New Haven, Connecticut.
Dr. Koff's NPI, 1104040401, was assigned on April 11, 2007. Dr. Koff graduated from Case Western Reserve University School of Medicine in 2000. Dr. Koff holds Connecticut license 049721.
- NPI
- 1104040401NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577640309
- NPI enumeration date
- April 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 785-2140
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan Koff practices at Yale Medicine in New Haven, Connecticut
Dr. Koff's primary practice is Yale Medicine, at 50 Division St, New Haven, CT 06511 in South Central Ct County. The practice phone is (203) 785-2140.
- Yale Medicine50 Division St, New Haven, CT 06511 · South Central Ct CountyPhone(203) 785-2140
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jonathan Koff is affiliated with 4 sites of care and 1 medical group
Dr. Koff's primary practice is Yale Medicine in New Haven, Connecticut. Dr. Koff is also affiliated with Yale New Haven Hospital. The medical group on file is Yale Health. Dmand AI also links Dr. Koff to 1 more hospital and 1 group practice or clinic, 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 Koff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Koff practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Yale Medicine | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jonathan Koff is one of 239 pulmonologists in Connecticut
Pulmonary disease is Dr. Koff's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dmand AI has Dr. Koff's licenses on file in 2 states: Connecticut and California.
Specialties and state licenses
- Pulmonary disease, ConnecticutPrimary
- Critical care medicine (internal medicine), California
Pulmonologists near Dr. Koff
Counts of pulmonologists 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 Koff billed Medicare for 171 services in 2024
CMS data shows 171 Medicare services from Dr. Koff across 5 procedure codes in 2024, for 86 Medicare patients. Medicare paid $13,774 for them.
Dr. Koff's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 972024: 1014%
- Tests and treatments
- 2023: 182024: 70289%
Where Dr. Koff's Medicare services took place, 2024
- In an office8650%
- In a facility8550%
Dr. Koff compared with the Connecticut median for pulmonologists, 2024
- Dr. Koff
- Connecticut median
- Medicare services
- 171vs 52868% below
- Medicare patients
- 86vs 24765% below
- Part D claims
- 93vs 62385% below
Medians across 239 pulmonologists in Connecticut 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.
Need commercial claims for Dr. Koff?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Koff and other pulmonologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan Koff treated 86 Medicare patients in 2024, average age 72
CMS counts 86 Medicare patients who saw Dr. Koff in 2024. The largest group is 65 to 74, with 32 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 28% are also on Medicaid. Their average risk score is 3.06, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Koff's median patient age at 67, with 60% women.
Dr. Koff's Medicare patients by age, 2024
Dr. Koff's Medicare patients by sex, 2024
- Women4856%
- Men3844%
Chronic conditions among Dr. Koff's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- COPD63%
- Heart failure55%
- Arthritis52%
- Chronic kidney disease49%
- Diabetes49%
- Ischemic heart disease45%
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 67
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan Koff wrote 181 Medicare Part D claims in 2024
In 2024, Dr. Koff wrote 181 Medicare Part D claims for 31 patients. 37% of them were for generic drugs. CMS names the drug for 93 of them, across 4 drugs with 11 or more claims each, at $2,099,517 in total drug cost. In 2023, CMS named 24 claims across 1 drug.
Dr. Koff's Part D claims by kind of drug, 2024
- Generic67 claims37%
- Brand-name114 claims63%
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
- Antibiotics10%19 of 181 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: 242024: 93288%
Drugs named by CMS: 4 in 2024, 1 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 Koff scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Koff for performance year 2024, reported as part of a group. Dr. Koff accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Koff as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Koff's MIPS scores, performance year 2024
- 87of 100Final score
- 77.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Jonathan Koff received $16,116 in industry payments from 2016 to 2025
CMS Open Payments shows 32 general payments to Dr. Koff from 9 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 60% of the total. Actelion Pharmaceuticals, Ltd paid the most, $12,413.
General payments to Dr. Koff by program year, 2016 to 2025
General payments to Dr. Koff by kind, 2016 to 2025
- Travel and lodging$9,59260%
- Consulting fees$5,39033%
- Food and beverage$1,1137%
- Education$200%
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 Koff graduated from Case Western Reserve University School of Medicine
Dr. Koff graduated from Case Western Reserve University School of Medicine in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jonathan 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)Clinician Public Reporting: Overall MIPS Performance (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 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 Koff's NPI number?
Dr. Jonathan Koff's NPI number is 1104040401. It was assigned on April 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Koff?
Dr. Jonathan Koff is a pulmonologist in New Haven, Connecticut. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Jonathan Koff practice?
Dr. Koff practices at 50 Division St, New Haven, CT 06511. Dr. Koff's primary practice is Yale Medicine in New Haven, Connecticut. Dmand AI also links Dr. Koff to 1 hospital and 1 group practice or clinic.
What is Dr. Jonathan Koff's office phone number?
The practice phone on file for Dr. Koff is (203) 785-2140.
What is Dr. Jonathan Koff's medical license number?
Dr. Koff holds Connecticut license 049721, one of the licenses on file in 2 states.
Which states has Dr. Jonathan Koff been licensed in?
Dmand AI has state licenses on file for Dr. Koff in Connecticut and California.
Which hospitals is Dr. Jonathan Koff affiliated with?
Dr. Koff is affiliated with Yale New Haven Hospital. Dmand AI links Dr. Koff to 1 more hospital.
What medical group is Dr. Jonathan Koff part of?
Dr. Koff is linked to Yale Health.
Does Dr. Jonathan Koff accept Medicare?
Yes. CMS data shows Dr. Koff billed Medicare for 171 services in 2024, and Dr. Koff accepts Medicare assignment.
Does Dr. Jonathan Koff offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Koff as offering telehealth services.
Show 7 more questionsShow fewer questions
What is Dr. Jonathan Koff's MIPS score?
Dr. Koff's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does Dr. Jonathan Koff see?
CMS counts 86 Medicare patients who saw Dr. Koff in 2024, with an average age of 72.
What services does Dr. Jonathan Koff bill to Medicare?
In 2024, Dr. Koff's most billed Medicare services were lung function service (94375), hospital inpatient care (99233) and critical care (99291).
Where did Dr. Jonathan Koff go to medical school?
Dr. Koff graduated from Case Western Reserve University School of Medicine in 2000.
What drugs does Dr. Jonathan Koff prescribe most?
In 2024 Medicare Part D data, Dr. Koff's most prescribed drugs by claims were Trikafta, Azithromycin and Kalydeco.
Has Dr. Jonathan Koff received payments from drug or device companies?
CMS Open Payments shows $16,116 in general payments to Dr. Koff from 9 companies from 2016 to 2025. The largest total came from Actelion Pharmaceuticals, Ltd.
How long has Dr. Jonathan Koff been practicing?
Dr. Koff graduated from medical school in 2000, 26 years ago.
Selling to pulmonary disease practices?
See pulmonologists in Connecticut by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card