Dr. Steven R. Rozak, MD
- Medicare services, 2024
- 476
- Medicare patients, 2024
- 228
- Part D claims, 2024
- 5,121
- Industry payments
- $16,670
- Affiliated sites
- 1
- Practice address
- 55 North Ave, Mendon, MA 01756
- Practice phone
- Call (508) 334-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Umass Memorial Medical Center
Mendon, Massachusetts
Find Dr. Rozak'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. Steven R. Rozak is an internist in Mendon, Massachusetts
Dr. Rozak practices at Umass Memorial Medical Center in Mendon, Massachusetts.
Dr. Rozak's NPI, 1154302065, was assigned on November 8, 2005. Dr. Rozak graduated from University of Massachusetts Medical School in 1983. Dr. Rozak holds Massachusetts license 53877.
- NPI
- 1154302065NPI Registry (opens in a new tab)
- NPI enumeration date
- November 8, 2005
- NPI status
- Active
- Practice phone
- (508) 334-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Steven R. Rozak practices at Umass Memorial Medical Center in Mendon, Massachusetts
Dr. Rozak's primary practice is Umass Memorial Medical Center, at 55 North Ave, Mendon, MA 01756 in Worcester County. The practice phone is (508) 334-1000.
- Umass Memorial Medical Center55 North Ave, Mendon, MA 01756 · Worcester CountyPhone(508) 334-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Steven R. Rozak is affiliated with 2 sites of care and 1 medical group
Dr. Rozak's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. The medical group on file is UMass Memorial Medical Group. Dmand AI also links Dr. Rozak to 1 more group practice or clinic, 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. Steven R. Rozak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rozak practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Umass Memorial Medical Center | 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. Steven R. Rozak is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Rozak's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Rozak is board certified in internal medicine by the American Board of Internal Medicine. Dr. Rozak is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Rozak
Counts of internists 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. Steven R. Rozak billed Medicare for 476 services in 2024
CMS data shows 476 Medicare services from Dr. Rozak across 6 procedure codes in 2024, for 228 Medicare patients. Medicare paid $20,732 for them. Every service was in an office.
Dr. Rozak's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2382024: 27114%
- Other services
- 2023: 1862024: 20510%
- Tests and treatments
- 2023: 122024: 0100%
Dr. Rozak compared with the Massachusetts median for internists, 2024
- Dr. Rozak
- Massachusetts median
- Medicare services
- 476vs 43110% above
- Medicare patients
- 228vs 19418% above
- Part D claims
- 4,551vs 40211.3 times
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Rozak'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. Rozak and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steven R. Rozak treated 228 Medicare patients in 2024, average age 75
CMS counts 228 Medicare patients who saw Dr. Rozak in 2024. The largest group is 65 to 74, with 114 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 6% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Rozak's median patient age at 69, with 51% women.
Dr. Rozak's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Rozak's Medicare patients by sex, 2024
- Women11651%
- Men11249%
Chronic conditions among Dr. Rozak's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis36%
- Ischemic heart disease26%
- Chronic kidney disease20%
- Diabetes18%
- Anxiety16%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rozak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Steven R. Rozak wrote 5,121 Medicare Part D claims in 2024
In 2024, Dr. Rozak wrote 5,121 Medicare Part D claims for 431 patients. 89% of them were for generic drugs. CMS names the drug for 4,551 of them, across 102 drugs with 11 or more claims each, at $313,635 in total drug cost. In 2023, CMS named 4,173 claims across 89 drugs.
Dr. Rozak's Part D claims by kind of drug, 2024
- Generic4,567 claims89%
- Brand-name543 claims11%
- Other11 claims0%
Dr. Rozak'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. Rozak's Part D claims, 2024
- Opioids2%80 of 5,121 claims
- Antibiotics4%212 of 5,121 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: 4,1732024: 4,5519%
Drugs named by CMS: 102 in 2024, 89 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
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Dr. Steven R. Rozak received $16,670 in industry payments from 2016 to 2021
CMS Open Payments shows 1,071 general payments to Dr. Rozak from 40 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,672.
General payments to Dr. Rozak by program year, 2016 to 2021
General payments to Dr. Rozak by kind, 2016 to 2021
- Food and beverage$16,53699%
- Education$1331%
Companies that paid Dr. Rozak the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Steven R. Rozak graduated from University of Massachusetts Medical School
Dr. Rozak graduated from University of Massachusetts Medical School in 1983.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Steven R. Rozak'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) |
| 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. Steven R. Rozak
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. Steven R. Rozak's NPI number?
Dr. Steven R. Rozak's NPI number is 1154302065. It was assigned on November 8, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven R. Rozak?
Dr. Steven R. Rozak is an internist in Mendon, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Steven R. Rozak practice?
Dr. Rozak practices at 55 North Ave, Mendon, MA 01756. Dr. Rozak's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dmand AI also links Dr. Rozak to 1 group practice or clinic.
What is Dr. Steven R. Rozak's office phone number?
The practice phone on file for Dr. Rozak is (508) 334-1000.
What is Dr. Steven R. Rozak's medical license number?
Dr. Rozak holds Massachusetts license 53877.
What medical group is Dr. Steven R. Rozak part of?
Dr. Rozak is linked to UMass Memorial Medical Group.
Does Dr. Steven R. Rozak accept Medicare?
Yes. CMS data shows Dr. Rozak billed Medicare for 476 services in 2024.
How many Medicare patients does Dr. Steven R. Rozak see?
CMS counts 228 Medicare patients who saw Dr. Rozak in 2024, with an average age of 75.
Is Dr. Steven R. Rozak board certified?
Yes. Dr. Rozak is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Steven R. Rozak bill to Medicare?
In 2024, Dr. Rozak's most billed Medicare services were office visit, established patient (99213), medicare service (G0439) and office visit, established patient (99214).
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Where did Dr. Steven R. Rozak go to medical school?
Dr. Rozak graduated from University of Massachusetts Medical School in 1983.
What drugs does Dr. Steven R. Rozak prescribe most?
In 2024 Medicare Part D data, Dr. Rozak's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. Steven R. Rozak received payments from drug or device companies?
CMS Open Payments shows $16,670 in general payments to Dr. Rozak from 40 companies from 2016 to 2021. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Steven R. Rozak been practicing?
Dr. Rozak graduated from medical school in 1983, 43 years ago.
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