Dr. Barret Zimmerman, MD
- Medicare services, 2024
- 62
- Medicare patients, 2024
- 76
- Part D claims, 2024
- 59
- Hospital affiliations
- 4
- Medical groups
- 3
- Practice address
- One Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557
- Practice phone
- Call (508) 693-0410
- 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. Barret Zimmerman is an emergency medicine physician in Oak Bluffs, Massachusetts
Dr. Zimmerman practices at Martha's Vineyard Hospital in Oak Bluffs, Massachusetts, part of Mass General Brigham.
Dr. Zimmerman's NPI, 1033735584, was assigned on June 21, 2020. Dr. Zimmerman graduated from Wake Forest University School of Medicine in 2020. Dr. Zimmerman holds Massachusetts license 1017581.
- NPI
- 1033735584NPI Registry (opens in a new tab)
- NPI enumeration date
- June 21, 2020
- NPI status
- Active
- Practice phone
- (508) 693-0410
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Barret Zimmerman practices at 2 locations in Oak Bluffs, Massachusetts
Dr. Zimmerman's primary practice is Martha's Vineyard Hospital, at One Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557 in Dukes County. The practice phone is (508) 693-0410. Dr. Zimmerman also practices at Martha's Vineyard Hospital, 1 Hospital Way, Oak Bluffs, MA 02557.
- Martha's Vineyard HospitalPrimaryOne Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557 · Dukes CountyPhone(508) 693-0410
- Martha's Vineyard Hospital1 Hospital Way, Oak Bluffs, MA 02557 · Dukes CountyPhone(508) 693-0410
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Barret Zimmerman is affiliated with 5 sites of care and 3 medical groups
Dr. Zimmerman's primary practice is Martha's Vineyard Hospital in Oak Bluffs, Massachusetts, part of Mass General Brigham. Dr. Zimmerman is also affiliated with Brigham and Women's Hospital. The medical group on file is Martha's Vineyard Hospital. Dmand AI also links Dr. Zimmerman to 2 more hospitals, 2 medical groups and 1 senior living community, each named with a free account. Dr. Zimmerman's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Barret Zimmerman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmerman practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Martha's Vineyard Hospital | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Barret Zimmerman is one of 1,483 emergency medicine physicians in Massachusetts
Emergency medicine is Dr. Zimmerman's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Zimmerman's licenses on file in 2 states: Massachusetts and Rhode Island.
Specialties and state licenses
- Emergency medicine, MassachusettsPrimary
- Rhode Island license
Emergency medicine physicians near Dr. Zimmerman
Counts of emergency medicine 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. Barret Zimmerman billed Medicare for 62 services in 2024
CMS data shows 62 Medicare services from Dr. Zimmerman across 2 procedure codes in 2024, for 76 Medicare patients. Medicare paid $7,829 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Zimmerman compared with the Massachusetts median for emergency medicine physicians, 2024
- Dr. Zimmerman
- Massachusetts median
- Medicare services
- 62vs 34182% below
- Medicare patients
- 76vs 33777% below
Medians across 1,477 emergency medicine physicians in Massachusetts 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Barret Zimmerman treated 76 Medicare patients in 2024, average age 72
CMS counts 76 Medicare patients who saw Dr. Zimmerman in 2024. The largest group is 65 to 74, with 25 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 46% are also on Medicaid. Their average risk score is 2.15, 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 76, with 52% women.
Dr. Zimmerman's Medicare patients by age, 2024
Dr. Zimmerman's Medicare patients by sex, 2024
- Women5268%
- Men2432%
Chronic conditions among Dr. Zimmerman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Anxiety50%
- Mood disorders49%
- Depression42%
- Diabetes41%
- Chronic kidney disease39%
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 76
Patient panel by sex, all payers
- Women52%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Barret Zimmerman wrote 59 Medicare Part D claims in 2024
In 2024, Dr. Zimmerman wrote 59 Medicare Part D claims for 42 patients. 85% of them were for generic drugs.
Dr. Zimmerman's Part D claims by kind of drug, 2024
- Generic50 claims85%
- Brand-name and other9 claims15%
Drug classes CMS tracks in Dr. Zimmerman's Part D claims, 2024
- Antibiotics25%15 of 59 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Barret Zimmerman graduated from Wake Forest University School of Medicine
Dr. Zimmerman graduated from Wake Forest University School of Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Barret 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice 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 (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. Barret 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. Barret Zimmerman's NPI number?
Dr. Barret Zimmerman's NPI number is 1033735584. It was assigned on June 21, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Barret Zimmerman?
Dr. Barret Zimmerman is an emergency medicine physician in Oak Bluffs, Massachusetts. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Barret Zimmerman practice?
Dr. Zimmerman practices at One Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557. Dr. Zimmerman also practices at 1 Hospital Way, Oak Bluffs, MA 02557. Dr. Zimmerman's primary practice is Martha's Vineyard Hospital in Oak Bluffs, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Zimmerman to 2 hospitals, 2 medical groups and 1 senior living community.
What is Dr. Barret Zimmerman's office phone number?
The practice phone on file for Dr. Zimmerman is (508) 693-0410.
What is Dr. Barret Zimmerman's medical license number?
Dr. Zimmerman holds Massachusetts license 1017581, one of the licenses on file in 2 states.
Which states has Dr. Barret Zimmerman been licensed in?
Dmand AI has state licenses on file for Dr. Zimmerman in Massachusetts and Rhode Island.
Which hospitals is Dr. Barret Zimmerman affiliated with?
Dr. Zimmerman practices at Martha's Vineyard Hospital in Oak Bluffs, Massachusetts. Dr. Zimmerman is also affiliated with Brigham and Women's Hospital. Dmand AI links Dr. Zimmerman to 2 more hospitals.
What medical group is Dr. Barret Zimmerman part of?
Dr. Zimmerman is linked to Martha's Vineyard Hospital. Dmand AI links Dr. Zimmerman to 2 more medical groups.
Does Dr. Barret Zimmerman accept Medicare?
Yes. CMS data shows Dr. Zimmerman billed Medicare for 62 services in 2024.
How many Medicare patients does Dr. Barret Zimmerman see?
CMS counts 76 Medicare patients who saw Dr. Zimmerman in 2024, with an average age of 72.
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What services does Dr. Barret Zimmerman bill to Medicare?
In 2024, Dr. Zimmerman's most billed Medicare services were emergency department visit (99285) and emergency department visit (99284).
Where did Dr. Barret Zimmerman go to medical school?
Dr. Zimmerman graduated from Wake Forest University School of Medicine in 2020.
How long has Dr. Barret Zimmerman been practicing?
Dr. Zimmerman graduated from medical school in 2020, 6 years ago.
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