Dr. Jason Ross Penzer, MD
- Medicare services, 2024
- 271
- Medicare patients, 2024
- 116
- Part D claims, 2024
- 77
- Hospital affiliations
- 1
- Industry payments
- $984
- Practice address
- 515 Madison Ave Rm 705 Rm 705, New York, NY 10022-5462
- Practice phone
- Call (212) 675-2997
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Manhattan Colorectal Surgeon
Surgical practice · New York, New York
Find Dr. Penzer's professional email, personal email and mobile number
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Dr. Jason Ross Penzer is a colorectal surgeon in New York, New York
Dr. Penzer practices at Manhattan Colorectal Surgeon in New York, New York.
Dr. Penzer's NPI, 1548245319, was assigned on December 14, 2005. Dr. Penzer graduated from Yale School of Medicine in 1996. Dr. Penzer holds New York license 207364.
- NPI
- 1548245319NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719936020
- NPI enumeration date
- December 14, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 675-2997
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jason Ross Penzer practices at Manhattan Colorectal Surgeon in New York, New York
Dr. Penzer's primary practice is Manhattan Colorectal Surgeon, at 515 Madison Ave Rm 705 Rm 705, New York, NY 10022-5462. The practice phone is (212) 675-2997.
- Manhattan Colorectal Surgeon515 Madison Ave Rm 705 Rm 705, New York, NY 10022-5462Phone(212) 675-2997
Source: Dmand AI Affiliation Data
Dr. Jason Ross Penzer is affiliated with 2 sites of care and 1 medical group
Dr. Penzer's primary practice is Manhattan Colorectal Surgeon in New York, New York. Dr. Penzer is also affiliated with Lenox Hill Hospital. The medical group on file is Manhattan Colorectal Surgeons.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jason Ross Penzer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Penzer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Manhattan Colorectal Surgeon | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jason Ross Penzer is one of 179 colorectal surgeons in New York
Colon and rectal surgery is Dr. Penzer's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Penzer is licensed in New York.
Specialties and state licenses
- Colon and rectal surgery, New YorkPrimary
Colorectal surgeons near Dr. Penzer
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. Jason Ross Penzer billed Medicare for 271 services in 2024
CMS data shows 271 Medicare services from Dr. Penzer across 7 procedure codes in 2024, for 116 Medicare patients. Medicare paid $24,291 for them.
Dr. Penzer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1372024: 17729%
- Surgery
- 2023: 892024: 946%
- Other services
- 2023: 112024: 0100%
Where Dr. Penzer's Medicare services took place, 2024
- In an office23787%
- In a facility3413%
Dr. Penzer compared with the New York median for colorectal surgeons, 2024
- Dr. Penzer
- New York median
- Medicare services
- 271vs 22222% above
- Medicare patients
- 116vs 13313% below
- Part D claims
- 24vs 3837% below
Medians across 172 colorectal surgeons in New York with Dmand AI profiles that report each measure.
Dr. Penzer'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. Penzer and other colorectal surgeons in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jason Ross Penzer treated 116 Medicare patients in 2024, average age 75
CMS counts 116 Medicare patients who saw Dr. Penzer in 2024. The largest group is 75 to 84, with 55 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 11% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Penzer's median patient age at 49, with 27% women.
Dr. Penzer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Penzer's Medicare patients by sex, 2024
- Women3934%
- Men7766%
Chronic conditions among Dr. Penzer's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis53%
- Anxiety29%
- Ischemic heart disease29%
- Mood disorders29%
- Cancer28%
- Diabetes28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Penzer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women27%
- Men70%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jason Ross Penzer wrote 77 Medicare Part D claims in 2024
In 2024, Dr. Penzer wrote 77 Medicare Part D claims for 45 patients. 62% of them were for generic drugs. CMS names the drug for 24 of them, across 1 drug with 11 or more claims each, at $4,043 in total drug cost. In 2023, CMS named 34 claims across 2 drugs.
Dr. Penzer's Part D claims by kind of drug, 2024
- Generic48 claims62%
- Brand-name29 claims38%
Dr. Penzer'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. Penzer's Part D claims, 2024
- Antibiotics14%11 of 77 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: 342024: 2429%
Drugs named by CMS: 1 in 2024, 2 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. Jason Ross Penzer ranks in the 50th percentile for colonoscopy in Medicare
Dr. Penzer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 24 procedures of colonoscopy by Dr. Penzer, more than 50% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Penzer ranks in Medicare procedure volume
- Colonoscopy
- 50th percentile24 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. Jason Ross Penzer received $984 in industry payments from 2016 to 2024
CMS Open Payments shows 54 general payments to Dr. Penzer from 8 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $719.
General payments to Dr. Penzer by program year, 2016 to 2024
Companies that paid Dr. Penzer the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jason Ross Penzer graduated from Yale School of Medicine
Dr. Penzer graduated from Yale School of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jason Ross Penzer'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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. Jason Ross Penzer
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. Jason Ross Penzer's NPI number?
Dr. Jason Ross Penzer's NPI number is 1548245319. It was assigned on December 14, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Jason Ross Penzer?
Dr. Jason Ross Penzer is a colorectal surgeon in New York, New York. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. Jason Ross Penzer practice?
Dr. Penzer practices at 515 Madison Ave Rm 705 Rm 705, New York, NY 10022-5462. Dr. Penzer's primary practice is Manhattan Colorectal Surgeon in New York, New York.
What is Dr. Jason Ross Penzer's office phone number?
The practice phone on file for Dr. Penzer is (212) 675-2997.
What is Dr. Jason Ross Penzer's medical license number?
Dr. Penzer holds New York license 207364.
Which hospitals is Dr. Jason Ross Penzer affiliated with?
Dr. Penzer is affiliated with Lenox Hill Hospital.
What medical group is Dr. Jason Ross Penzer part of?
Dr. Penzer is linked to Manhattan Colorectal Surgeons.
Does Dr. Jason Ross Penzer accept Medicare?
Yes. CMS data shows Dr. Penzer billed Medicare for 271 services in 2024, and Dr. Penzer accepts Medicare assignment.
How many Medicare patients does Dr. Jason Ross Penzer see?
CMS counts 116 Medicare patients who saw Dr. Penzer in 2024, with an average age of 75.
What services does Dr. Jason Ross Penzer bill to Medicare?
In 2024, Dr. Penzer's most billed Medicare services were office visit, established patient (99213), surgery: digestive system (46600) and office visit, new patient (99203).
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Where did Dr. Jason Ross Penzer go to medical school?
Dr. Penzer graduated from Yale School of Medicine in 1996.
What drugs does Dr. Jason Ross Penzer prescribe most?
In 2024 Medicare Part D data, Dr. Penzer's most prescribed drugs by claims were Clenpiq.
Has Dr. Jason Ross Penzer received payments from drug or device companies?
CMS Open Payments shows $984 in general payments to Dr. Penzer from 8 companies from 2016 to 2024. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Jason Ross Penzer been practicing?
Dr. Penzer graduated from medical school in 1996, 30 years ago.
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