Dr. Stephen Mark Renzin, MD
- Medicare services, 2024
- 600
- Medicare patients, 2024
- 148
- Part D claims, 2024
- 689
- Hospital affiliations
- 1
- Industry payments
- $2,496
- Practice address
- 16 Guion Pl, New Rochelle, NY 10801
- Practice phone
- Call (914) 365-4618
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Montefiore New Rochelle Hospital - Mammography
Mammography / Breast Imaging Center · New Rochelle, New York
Find Dr. Renzin's professional email, personal email and mobile number
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Dr. Stephen Mark Renzin is a gynecology physician in New Rochelle, New York
Dr. Renzin practices at Montefiore New Rochelle Hospital - Mammography in New Rochelle, New York.
Dr. Renzin's NPI, 1316029671, was assigned on October 19, 2006. Dr. Renzin graduated from Wayne State University School of Medicine in 1972. Dr. Renzin holds New York license 117223.
- NPI
- 1316029671NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749201382
- NPI enumeration date
- October 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (914) 365-4618
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen Mark Renzin practices at Montefiore New Rochelle Hospital - Mammography in New Rochelle, New York
Dr. Renzin's primary practice is Montefiore New Rochelle Hospital - Mammography, at 16 Guion Pl, New Rochelle, NY 10801. The practice phone is (914) 365-4618.
- Montefiore New Rochelle Hospital - Mammography16 Guion Pl, New Rochelle, NY 10801Phone(914) 365-4618
Source: Dmand AI Affiliation Data
Dr. Stephen Mark Renzin is affiliated with 2 sites of care
Dr. Renzin's primary practice is Montefiore New Rochelle Hospital - Mammography in New Rochelle, New York. Dr. Renzin is also affiliated with White Plains Hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stephen Mark Renzin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Renzin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Montefiore New Rochelle Hospital - Mammography | 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. Stephen Mark Renzin is one of 261 gynecology physicians in New York
Gynecology is Dr. Renzin's primary specialty in the NPI Registry, under taxonomy code 207VG0400X. Dr. Renzin is licensed in New York.
Specialties and state licenses
- Gynecology, New YorkPrimary
Gynecology physicians near Dr. Renzin
Counts of gynecology physicians 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. Stephen Mark Renzin billed Medicare for 600 services in 2024
CMS data shows 600 Medicare services from Dr. Renzin across 4 procedure codes in 2024, for 148 Medicare patients. Medicare paid $57,179 for them. Every service was in an office.
Dr. Renzin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2792024: 2723%
- Imaging
- 2023: 2572024: 22512%
- Surgery
- 2023: 1482024: 10330%
Dr. Renzin compared with the New York median for gynecology physicians, 2024
- Dr. Renzin
- New York median
- Medicare services
- 600vs 1424.2 times
- Medicare patients
- 148vs 7890% above
- Part D claims
- 584vs 5011.7 times
Medians across 245 gynecology physicians in New York with Dmand AI profiles that report each measure.
Dr. Renzin'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen Mark Renzin treated 148 Medicare patients in 2024, average age 74
CMS counts 148 Medicare patients who saw Dr. Renzin in 2024. The largest group is 65 to 74, with 78 patients. 71% of them have high cholesterol, and 66% have high blood pressure. 7% are also on Medicaid. Their average risk score is 0.77, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Renzin's median patient age at 54, with 98% women.
Dr. Renzin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Renzin's Medicare patients, 2024
- High cholesterol71%
- High blood pressure66%
- Arthritis49%
- Diabetes26%
- Osteoporosis26%
- Anxiety22%
- Cancer18%
- Mood disorders12%
Share of Medicare patients with each condition. A patient can have several.
Dr. Renzin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women98%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen Mark Renzin wrote 689 Medicare Part D claims in 2024
In 2024, Dr. Renzin wrote 689 Medicare Part D claims for 173 patients. 89% of them were for generic drugs. CMS names the drug for 584 of them, across 10 drugs with 11 or more claims each, at $42,159 in total drug cost. In 2023, CMS named 620 claims across 9 drugs.
Dr. Renzin's Part D claims by kind of drug, 2024
- Generic610 claims89%
- Brand-name79 claims11%
Dr. Renzin'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. Renzin's Part D claims, 2024
- Antibiotics7%45 of 689 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: 6202024: 5846%
Drugs named by CMS: 10 in 2024, 9 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
How Dr. Stephen Mark Renzin takes part in Medicare
Dr. Renzin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Stephen Mark Renzin received $2,496 in industry payments from 2016 to 2025
CMS Open Payments shows 236 general payments to Dr. Renzin from 13 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 87% of the total. Allergan Inc. paid the most, $717.
General payments to Dr. Renzin by program year, 2016 to 2025
General payments to Dr. Renzin by kind, 2016 to 2025
- Food and beverage$2,16287%
- Education$33313%
Companies that paid Dr. Renzin 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. Stephen Mark Renzin graduated from Wayne State University School of Medicine
Dr. Renzin graduated from Wayne State University School of Medicine in 1972.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen Mark Renzin'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 DataDmand AI Org Hierarchy 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) |
| 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. Stephen Mark Renzin
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. Stephen Mark Renzin's NPI number?
Dr. Stephen Mark Renzin's NPI number is 1316029671. It was assigned on October 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen Mark Renzin?
Dr. Stephen Mark Renzin is a gynecology physician in New Rochelle, New York. The primary specialty in the NPI Registry is Gynecology Physician (taxonomy code 207VG0400X).
Where does Dr. Stephen Mark Renzin practice?
Dr. Renzin practices at 16 Guion Pl, New Rochelle, NY 10801. Dr. Renzin's primary practice is Montefiore New Rochelle Hospital - Mammography in New Rochelle, New York.
What is Dr. Stephen Mark Renzin's office phone number?
The practice phone on file for Dr. Renzin is (914) 365-4618.
What is Dr. Stephen Mark Renzin's medical license number?
Dr. Renzin holds New York license 117223.
Which hospitals is Dr. Stephen Mark Renzin affiliated with?
Dr. Renzin is affiliated with White Plains Hospital.
Does Dr. Stephen Mark Renzin accept Medicare?
Yes. CMS data shows Dr. Renzin billed Medicare for 600 services in 2024, and Dr. Renzin accepts Medicare assignment.
How many Medicare patients does Dr. Stephen Mark Renzin see?
CMS counts 148 Medicare patients who saw Dr. Renzin in 2024, with an average age of 74.
What services does Dr. Stephen Mark Renzin bill to Medicare?
In 2024, Dr. Renzin's most billed Medicare services were ultrasound (76830), office visit, established patient (99214) and surgery: female reproductive system (57511).
Where did Dr. Stephen Mark Renzin go to medical school?
Dr. Renzin graduated from Wayne State University School of Medicine in 1972.
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What drugs does Dr. Stephen Mark Renzin prescribe most?
In 2024 Medicare Part D data, Dr. Renzin's most prescribed drugs by claims were Fluconazole, Estradiol and Metronidazole.
Has Dr. Stephen Mark Renzin received payments from drug or device companies?
CMS Open Payments shows $2,496 in general payments to Dr. Renzin from 13 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Stephen Mark Renzin been practicing?
Dr. Renzin graduated from medical school in 1972, 54 years ago.
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