Aortic AneurysmBlood Vessel ProsthesisBlood Vessel Prosthesis Implantation
Dr. Robert Matthew Zwolak, MD
NPI1487664629
- Medicare services, 2019
- 1,236
- Part D claims, 2019
- 30
- Publications
- 13
- Hospital affiliations
- 1
- Industry payments
- $417
- Practice address
- 718 Smyth Road, Manchester, NH 03104
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Manchester VA Medical Center - Behavioral Health
Outpatient Addiction Treatment · Manchester, New Hampshire
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Dr. Robert Matthew Zwolak is a vascular surgeon in Manchester, New Hampshire
Dr. Zwolak practices at Manchester VA Medical Center - Behavioral Health in Manchester, New Hampshire.
Dr. Zwolak's NPI, 1487664629, was assigned on August 9, 2006. Dr. Zwolak holds New Hampshire license 7666.
NPI and contact details
- NPI
- 1487664629NPI Registry (opens in a new tab)
- NPI enumeration date
- August 9, 2006
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Robert Matthew Zwolak practices at Manchester VA Medical Center - Behavioral Health in Manchester, New Hampshire
Dr. Zwolak's primary practice is Manchester VA Medical Center - Behavioral Health, at 718 Smyth Road, Manchester, NH 03104.
- Manchester VA Medical Center - Behavioral Health718 Smyth Road, Manchester, NH 03104
Source: Dmand AI Affiliation Data
Dr. Robert Matthew Zwolak is affiliated with 2 sites of care and 2 medical groups
Dr. Zwolak's primary practice is Manchester VA Medical Center - Behavioral Health in Manchester, New Hampshire. Dr. Zwolak is also affiliated with Dartmouth Hitchcock Medical Center. The medical group on file is Dartmouth Hitchcock Clinics Manchester. Dmand AI also links Dr. Zwolak to 1 more medical group, named with a free account. Dr. Zwolak's employer is on file too: a behavioral health center.
Manchester VA Medical Center - Behavioral HealthPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Matthew Zwolak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zwolak practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Manchester VA Medical Center - Behavioral Health | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Matthew Zwolak is one of 34 vascular surgeons in New Hampshire
Vascular surgery is Dr. Zwolak's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. Zwolak is licensed in New Hampshire.
Specialties and state licenses
- Vascular surgery, New HampshirePrimary
Vascular surgeons near Dr. Zwolak
Counts of vascular surgeons with a Dmand AI profile, by place and practice. Each opens the list.
34vascular surgeons in New Hampshire
6vascular surgeons in Manchester
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Robert Matthew Zwolak billed Medicare for 1,236 services in 2019
CMS data shows 1,236 Medicare services from Dr. Zwolak across 16 procedure codes in 2019. Medicare paid $107,528 for them.
Medicare services, 20191,236
Paid by Medicare$107,528
Procedure codes16
Dr. Zwolak's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Tests and treatments
- 2018: 2,6002019: 1,10358%
- Office and hospital visits
- 2018: 2192019: 9955%
- Imaging
- 2018: 402019: 2050%
- Other services
- 2018: 212019: 1433%
Where Dr. Zwolak's Medicare services took place, 2019
- In an office91474%
- In a facility32226%
Dr. Zwolak compared with the New Hampshire median for vascular surgeons, 2019
- Dr. Zwolak
- New Hampshire median
- Medicare services
- 1,236vs 4702.6 times
- Part D claims
- 30vs 6050% below
Medians across 34 vascular surgeons in New Hampshire with Dmand AI profiles that report each measure.
Dr. Zwolak's most billed Medicare procedure codes, 2019
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. Zwolak and other vascular surgeons in New Hampshire.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Matthew Zwolak's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Zwolak's median patient age at 71, with 0% women.
Dr. Zwolak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Robert Matthew Zwolak wrote 30 Medicare Part D claims in 2019
In 2019, Dr. Zwolak wrote 30 Medicare Part D claims. They cover 2 drugs, with $1,141 in total drug cost. In 2018, CMS named 55 claims across 2 drugs.
Part D claims, 201930
Drugs named by CMS2
Total drug cost$1,141
Dr. Zwolak's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 552019: 3045%
Drugs named by CMS: 2 in 2019, 2 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Robert Matthew Zwolak has 13 publications on record
Dmand AI links 13 papers to Dr. Zwolak, published from 2010 to 2020. 2020 was the busiest year, with 4. The most frequent topics are Hospital Costs, Medicare and Academic Medical Centers. Dr. Zwolak has published most often in J Vasc Surg. Dr. Zwolak's most frequent co-authors are Philip Paul Goodney, MD, Jesse A. Columbo, MD and Bjoern Dominik Suckow, MD.
Papers13
Years published2010 to 2020
Dr. Zwolak's papers by year, 2010 to 2020
Topics Dr. Zwolak writes about most
- Hospital Costs
- Medicare
- Academic Medical Centers
- Blood Vessel Prosthesis
- Blood Vessel Prosthesis Implantation
- Carotid Stenosis
- Cost-Benefit Analysis
- Endovascular Procedures
Dr. Zwolak's most frequent co-authors
- Philip Paul Goodney, MD9 shared papers
- Jesse A. Columbo, MD4 shared papers
- Bjoern Dominik Suckow, MD4 shared papers
Recent publications by Dr. Zwolak
AtherectomyFemoral ArteryPeripheral Arterial Disease
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Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Zwolak works with, so you can find a warm path to the right vascular surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert Matthew Zwolak received $417 in industry payments from 2018 to 2019
CMS Open Payments shows 5 general payments to Dr. Zwolak from 1 drug or device company from 2018 to 2019. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $417.
General payments to Dr. Zwolak by program year, 2018 to 2019
Companies that paid Dr. Zwolak the most, 2018 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Robert Matthew Zwolak'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Robert Matthew Zwolak
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. Robert Matthew Zwolak's NPI number?
Dr. Robert Matthew Zwolak's NPI number is 1487664629. It was assigned on August 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Matthew Zwolak?
Dr. Robert Matthew Zwolak is a vascular surgeon in Manchester, New Hampshire. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).
Where does Dr. Robert Matthew Zwolak practice?
Dr. Zwolak practices at 718 Smyth Road, Manchester, NH 03104. Dr. Zwolak's primary practice is Manchester VA Medical Center - Behavioral Health in Manchester, New Hampshire. Dmand AI also links Dr. Zwolak to 1 medical group.
What is Dr. Robert Matthew Zwolak's medical license number?
Dr. Zwolak holds New Hampshire license 7666.
Which hospitals is Dr. Robert Matthew Zwolak affiliated with?
Dr. Zwolak is affiliated with Dartmouth Hitchcock Medical Center.
What medical group is Dr. Robert Matthew Zwolak part of?
Dr. Zwolak is linked to Dartmouth Hitchcock Clinics Manchester. Dmand AI links Dr. Zwolak to 1 more medical group.
Does Dr. Robert Matthew Zwolak accept Medicare?
Yes. CMS data shows Dr. Zwolak billed Medicare for 1,236 services in 2019.
What services does Dr. Robert Matthew Zwolak bill to Medicare?
In 2019, Dr. Zwolak's most billed Medicare services were blood vessel study (93922), blood vessel study (93880) and blood vessel study (93971).
What drugs does Dr. Robert Matthew Zwolak prescribe most?
In 2019 Medicare Part D data, Dr. Zwolak's most prescribed drugs by claims were Clopidogrel and Cilostazol.
Has Dr. Robert Matthew Zwolak received payments from drug or device companies?
CMS Open Payments shows $417 in general payments to Dr. Zwolak from 1 company from 2018 to 2019. The largest total came from Boston Scientific Corporation.
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How long has Dr. Robert Matthew Zwolak been practicing?
Dr. Zwolak's NPI was assigned in 2006.
Does Dr. Robert Matthew Zwolak do research?
Dmand AI links 13 publications to Dr. Zwolak, published from 2010 to 2020.
Who does Dr. Robert Matthew Zwolak publish with?
Dr. Zwolak's most frequent co-authors are Philip Paul Goodney, MD (9 shared papers), Jesse A. Columbo, MD (4 shared papers) and Bjoern Dominik Suckow, MD (4 shared papers).
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