Dr. Patrick William Zimmerman, DO
- Medicare services, 2024
- 295
- Medicare patients, 2024
- 204
- Publications
- 2
- Hospital affiliations
- 1
- Industry payments
- $9,338
- Practice address
- 24 Hospital Ave, Danbury, CT 06810
- Practice phone
- Call (203) 739-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zimmerman'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. Patrick William Zimmerman is a trauma surgery physician in Danbury, Connecticut
Dr. Zimmerman practices at Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health.
Dr. Zimmerman's NPI, 1740674662, was assigned on March 28, 2015. Dr. Zimmerman graduated from At Still Un of Hlth Sciences, Col of Osteo Med, Mesa in 2015. Dr. Zimmerman holds Connecticut license 71913.
- NPI
- 1740674662NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668771205
- NPI enumeration date
- March 28, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 739-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Patrick William Zimmerman practices at Northwell Danbury Hospital in Danbury, Connecticut
Dr. Zimmerman's primary practice is Northwell Danbury Hospital, at 24 Hospital Ave, Danbury, CT 06810 in Fairfield County. The practice phone is (203) 739-7000.
- Northwell Danbury Hospital24 Hospital Ave, Danbury, CT 06810 · Fairfield CountyPhone(203) 739-7000
Source: Dmand AI Affiliation Data
Dr. Patrick William Zimmerman is affiliated with 3 sites of care and 1 medical group
Dr. Zimmerman's primary practice is Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health. The medical group on file is Danbury Medical Group. Dmand AI also links Dr. Zimmerman to 1 more group practice or clinic and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Patrick William Zimmerman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmerman practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwell Danbury Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Patrick William Zimmerman is one of 17 trauma surgery physicians in Connecticut
Trauma surgery is Dr. Zimmerman's primary specialty in the NPI Registry, under taxonomy code 2086S0127X. Dr. Zimmerman is licensed in Connecticut.
Specialties and state licenses
- Trauma surgery, ConnecticutPrimary
Trauma surgery physicians near Dr. Zimmerman
Counts of trauma surgery 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. Patrick William Zimmerman billed Medicare for 295 services in 2024
CMS data shows 295 Medicare services from Dr. Zimmerman across 4 procedure codes in 2024, for 204 Medicare patients. Medicare paid $24,894 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Zimmerman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3332024: 29511%
Dr. Zimmerman compared with the Connecticut median for trauma surgery physicians, 2024
- Dr. Zimmerman
- Connecticut median
- Medicare services
- 295vs 1222.4 times
- Medicare patients
- 204vs 12958% above
Medians across 17 trauma surgery physicians in Connecticut with Dmand AI profiles that report each measure.
Dr. Zimmerman'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. Zimmerman and other trauma surgery physicians in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Patrick William Zimmerman treated 204 Medicare patients in 2024, average age 79
CMS counts 204 Medicare patients who saw Dr. Zimmerman in 2024. The largest group is 75 to 84, with 83 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.07, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Zimmerman's median patient age at 77, with 62% women.
Dr. Zimmerman's Medicare patients by age, 2024
Dr. Zimmerman's Medicare patients by sex, 2024
- Women12260%
- Men8240%
Chronic conditions among Dr. Zimmerman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease49%
- Anxiety46%
- Mood disorders46%
- Atrial fibrillation44%
- Depression38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zimmerman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women62%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Patrick William Zimmerman takes part in Medicare
Dr. Zimmerman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Patrick William Zimmerman has 2 publications on record
Dmand AI links 2 papers to Dr. Zimmerman, published from 2023 to 2024. Dr. Zimmerman has published most often in J Surg Case Rep. Dr. Zimmerman's most frequent co-authors are Simon David Eiref, MD, Heath Walden, MD and Tyler Glaspy, MD.
Dr. Zimmerman's most frequent co-authors
- Simon David Eiref, MD2 shared papers
- Heath Walden, MD2 shared papers
- Tyler Glaspy, MD1 shared paper
Recent publications by Dr. Zimmerman
J Surg Case Rep
See who Dr. Zimmerman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Zimmerman works with, so you can find a warm path to the right trauma surgery physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Patrick William Zimmerman received $9,338 in industry payments from 2022 to 2025
CMS Open Payments shows 34 general payments to Dr. Zimmerman from 7 drug and device companies from 2022 to 2025. Education make up the largest share, 75% of the total. Intuitive Surgical, Inc. paid the most, $8,340.
General payments to Dr. Zimmerman by program year, 2022 to 2025
General payments to Dr. Zimmerman by kind, 2022 to 2025
- Education$7,00075%
- Travel and lodging$1,32414%
- Food and beverage$1,01411%
Companies that paid Dr. Zimmerman the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Patrick William Zimmerman graduated from At Still Un of Hlth Sciences, Col of Osteo Med, Mesa
Dr. Zimmerman graduated from At Still Un of Hlth Sciences, Col of Osteo Med, Mesa in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Patrick William Zimmerman'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) |
| 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) |
| 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) |
| 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. Patrick William Zimmerman
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. Patrick William Zimmerman's NPI number?
Dr. Patrick William Zimmerman's NPI number is 1740674662. It was assigned on March 28, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Patrick William Zimmerman?
Dr. Patrick William Zimmerman is a trauma surgery physician in Danbury, Connecticut. The primary specialty in the NPI Registry is Trauma Surgery Physician (taxonomy code 2086S0127X).
Where does Dr. Patrick William Zimmerman practice?
Dr. Zimmerman practices at 24 Hospital Ave, Danbury, CT 06810. Dr. Zimmerman's primary practice is Northwell Danbury Hospital in Danbury, Connecticut, part of Northwell Health. Dmand AI also links Dr. Zimmerman to 1 group practice or clinic and 1 hospice.
What is Dr. Patrick William Zimmerman's office phone number?
The practice phone on file for Dr. Zimmerman is (203) 739-7000.
What is Dr. Patrick William Zimmerman's medical license number?
Dr. Zimmerman holds Connecticut license 71913.
Which hospitals is Dr. Patrick William Zimmerman affiliated with?
Dr. Zimmerman practices at Northwell Danbury Hospital in Danbury, Connecticut.
What medical group is Dr. Patrick William Zimmerman part of?
Dr. Zimmerman is linked to Danbury Medical Group.
Does Dr. Patrick William Zimmerman accept Medicare?
Yes. CMS data shows Dr. Zimmerman billed Medicare for 295 services in 2024, and Dr. Zimmerman accepts Medicare assignment.
How many Medicare patients does Dr. Patrick William Zimmerman see?
CMS counts 204 Medicare patients who saw Dr. Zimmerman in 2024, with an average age of 79.
What services does Dr. Patrick William Zimmerman bill to Medicare?
In 2024, Dr. Zimmerman's most billed Medicare services were hospital inpatient care (99231), critical care (99291) and hospital inpatient care (99232).
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Where did Dr. Patrick William Zimmerman go to medical school?
Dr. Zimmerman graduated from At Still Un of Hlth Sciences, Col of Osteo Med, Mesa in 2015.
Has Dr. Patrick William Zimmerman received payments from drug or device companies?
CMS Open Payments shows $9,338 in general payments to Dr. Zimmerman from 7 companies from 2022 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Patrick William Zimmerman been practicing?
Dr. Zimmerman graduated from medical school in 2015, 11 years ago.
Does Dr. Patrick William Zimmerman do research?
Dmand AI links 2 publications to Dr. Zimmerman, published from 2023 to 2024.
Who does Dr. Patrick William Zimmerman publish with?
Dr. Zimmerman's most frequent co-authors are Simon David Eiref, MD (2 shared papers), Heath Walden, MD (2 shared papers) and Tyler Glaspy, MD (1 shared paper).
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