Dr. Jonathan Philip Knowles, MD
- Medicare services, 2022
- 67
- Medicare patients, 2024
- 32
- Part D claims, 2024
- 30
- MIPS score, 2024
- 81
- Hospital affiliations
- 1
- Practice address
- 360 Essex St, Hackensack, NJ 07601
- Practice phone
- Call (732) 807-0800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hmhmg Specialty Care
Hackensack, New Jersey
Find Dr. Knowles' 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 Philip Knowles is a colorectal surgeon in Hackensack, New Jersey
Dr. Knowles practices at Hmhmg Specialty Care in Hackensack, New Jersey.
Dr. Knowles' NPI, 1699437897, was assigned on October 6, 2021. Dr. Knowles graduated from University of London Faculty of Medicine in 2000. Dr. Knowles holds New Jersey license 25MA11967100.
- NPI
- 1699437897NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476942905
- NPI enumeration date
- October 6, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (732) 807-0800
- 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 Philip Knowles practices at Hmhmg Specialty Care in Hackensack, New Jersey
Dr. Knowles' primary practice is Hmhmg Specialty Care, at 360 Essex St, Hackensack, NJ 07601 in Bergen County. The practice phone is (732) 807-0800.
- Hmhmg Specialty Care360 Essex St, Hackensack, NJ 07601 · Bergen CountyPhone(732) 807-0800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jonathan Philip Knowles is affiliated with 3 sites of care and 2 medical groups
Dr. Knowles' primary practice is Hmhmg Specialty Care in Hackensack, New Jersey. Dr. Knowles is also affiliated with JFK University Medical Center. The medical group on file is ColumbiaDoctors. Dmand AI also links Dr. Knowles to 1 more group practice or clinic 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 Philip Knowles' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Knowles practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hmhmg Specialty Care | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan Philip Knowles is one of 88 colorectal surgeons in New Jersey
Colon and rectal surgery is Dr. Knowles' primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dmand AI has Dr. Knowles' licenses on file in 2 states: New Jersey and New York.
Specialties and state licenses
- Colon and rectal surgery, New JerseyPrimary
- New York license
Colorectal surgeons near Dr. Knowles
Counts of colorectal surgeons 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 Philip Knowles billed Medicare for 67 services in 2022
CMS data shows 67 Medicare services from Dr. Knowles across 4 procedure codes in 2022, for 32 Medicare patients. Medicare paid $4,408 for them.
Where Dr. Knowles' Medicare services took place, 2022
- In an office2436%
- In a facility4364%
Dr. Knowles compared with the New Jersey median for colorectal surgeons, 2022
- Dr. Knowles
- New Jersey median
- Medicare services
- 67vs 33980% below
- Medicare patients
- 32vs 19684% below
- Part D claims
- 11vs 5981% below
Medians across 87 colorectal surgeons in New Jersey with Dmand AI profiles that report each measure.
Dr. Knowles' most billed Medicare procedure codes, 2022
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. Knowles?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Knowles and other colorectal surgeons in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan Philip Knowles treated 32 Medicare patients in 2024, average age 71
CMS counts 32 Medicare patients who saw Dr. Knowles in 2024. The largest group is 65 to 74, with 14 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.39, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Knowles' median patient age at 60, with 48% women.
Dr. Knowles' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Knowles' Medicare patients by sex, 2024
- Women1650%
- Men1650%
Chronic conditions among Dr. Knowles' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Diabetes50%
- Anxiety47%
- Ischemic heart disease44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Knowles' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women48%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan Philip Knowles wrote 30 Medicare Part D claims in 2024
In 2024, Dr. Knowles wrote 30 Medicare Part D claims for 18 patients. 90% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $16 in total drug cost. In 2022, CMS named 19 claims across 1 drug.
Dr. Knowles' Part D claims by kind of drug, 2024
- Generic27 claims90%
- Brand-name and other3 claims10%
Dr. Knowles' most prescribed drugs by claims, 2023
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. Knowles' Part D claims, 2024
- Antibiotics43%13 of 30 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 192023: 1142%
Drugs named by CMS: 1 in 2023, 1 in 2022.
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 Philip Knowles scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Knowles for performance year 2024, reported as part of a group. Dr. Knowles accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Knowles' MIPS scores, performance year 2024
- 81of 100Final score
- 66.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jonathan Philip Knowles received $6,867 in industry payments from 2021 to 2025
CMS Open Payments shows 34 general payments to Dr. Knowles from 12 drug and device companies from 2021 to 2025. Education make up the largest share, 51% of the total. Intuitive Surgical, Inc. paid the most, $6,117.
General payments to Dr. Knowles by program year, 2021 to 2025
General payments to Dr. Knowles by kind, 2021 to 2025
- Education$3,50051%
- Travel and lodging$2,12831%
- Food and beverage$1,23018%
- Gifts$90%
Companies that paid Dr. Knowles the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jonathan Philip Knowles graduated from University of London Faculty of Medicine
Dr. Knowles graduated from University of London Faculty of Medicine in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jonathan Philip Knowles'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)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 Philip Knowles
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 Philip Knowles' NPI number?
Dr. Jonathan Philip Knowles' NPI number is 1699437897. It was assigned on October 6, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Philip Knowles?
Dr. Jonathan Philip Knowles is a colorectal surgeon in Hackensack, New Jersey. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. Jonathan Philip Knowles practice?
Dr. Knowles practices at 360 Essex St, Hackensack, NJ 07601. Dr. Knowles' primary practice is Hmhmg Specialty Care in Hackensack, New Jersey. Dmand AI also links Dr. Knowles to 1 group practice or clinic and 1 medical group.
What is Dr. Jonathan Philip Knowles' office phone number?
The practice phone on file for Dr. Knowles is (732) 807-0800.
What is Dr. Jonathan Philip Knowles' medical license number?
Dr. Knowles holds New Jersey license 25MA11967100, one of the licenses on file in 2 states.
Which states has Dr. Jonathan Philip Knowles been licensed in?
Dmand AI has state licenses on file for Dr. Knowles in New Jersey and New York.
Which hospitals is Dr. Jonathan Philip Knowles affiliated with?
Dr. Knowles is affiliated with JFK University Medical Center.
What medical group is Dr. Jonathan Philip Knowles part of?
Dr. Knowles is linked to ColumbiaDoctors. Dmand AI links Dr. Knowles to 1 more medical group.
Does Dr. Jonathan Philip Knowles accept Medicare?
Yes. CMS data shows Dr. Knowles billed Medicare for 67 services in 2022, and Dr. Knowles accepts Medicare assignment.
What is Dr. Jonathan Philip Knowles' MIPS score?
Dr. Knowles' MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Jonathan Philip Knowles see?
CMS counts 32 Medicare patients who saw Dr. Knowles in 2024, with an average age of 71.
What services does Dr. Jonathan Philip Knowles bill to Medicare?
In 2022, Dr. Knowles' most billed Medicare services were hospital inpatient care (99231), office visit, new patient (99203) and hospital inpatient care (99232).
Where did Dr. Jonathan Philip Knowles go to medical school?
Dr. Knowles graduated from University of London Faculty of Medicine in 2000.
What drugs does Dr. Jonathan Philip Knowles prescribe most?
In 2023 Medicare Part D data, Dr. Knowles' most prescribed drugs by claims were Tramadol HCl.
Has Dr. Jonathan Philip Knowles received payments from drug or device companies?
CMS Open Payments shows $6,867 in general payments to Dr. Knowles from 12 companies from 2021 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Jonathan Philip Knowles been practicing?
Dr. Knowles graduated from medical school in 2000, 26 years ago.
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