Dr. Mark Zimmerman, MD
- Medicare services, 2024
- 130
- Medicare patients, 2024
- 20
- Part D claims, 2024
- 457
- Publications
- 268
- Industry payments
- $317,272
- Practice address
- 593 Eddy St, Providence, RI 02903
- Practice phone
- Call (401) 444-7585
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rhode Island Hospital/Hasbro Children's
Providence, Rhode Island
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. Mark Zimmerman is a psychiatrist in Providence, Rhode Island
Dr. Zimmerman practices at Rhode Island Hospital/Hasbro Children's in Providence, Rhode Island.
Dr. Zimmerman's NPI, 1508842857, was assigned on December 19, 2005. Dr. Zimmerman holds Rhode Island license MD08762.
- NPI
- 1508842857NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082665559
- NPI enumeration date
- December 19, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (401) 444-7585
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Zimmerman practices at Rhode Island Hospital/Hasbro Children's in Providence, Rhode Island
Dr. Zimmerman's primary practice is Rhode Island Hospital/Hasbro Children's, at 593 Eddy St, Providence, RI 02903 in Providence County. The practice phone is (401) 444-7585.
- Rhode Island Hospital/Hasbro Children's593 Eddy St, Providence, RI 02903 · Providence CountyPhone(401) 444-7585
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark Zimmerman is affiliated with 2 sites of care and 1 medical group
Dr. Zimmerman's primary practice is Rhode Island Hospital/Hasbro Children's in Providence, Rhode Island. The medical group on file is South County Psychiatry. Dmand AI also links Dr. Zimmerman 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. Mark Zimmerman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmerman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rhode Island Hospital/Hasbro Children's | 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. Mark Zimmerman is one of 251 psychiatrists in Rhode Island
Psychiatry is Dr. Zimmerman's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Zimmerman is licensed in Rhode Island.
Specialties and state licenses
- Psychiatry, Rhode IslandPrimary
Psychiatrists near Dr. Zimmerman
Counts of psychiatrists 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. Mark Zimmerman billed Medicare for 130 services in 2024
CMS data shows 130 Medicare services from Dr. Zimmerman across 2 procedure codes in 2024, for 20 Medicare patients. Medicare paid $8,047 for them. Every service was in an office.
Dr. Zimmerman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 852024: 7611%
- Tests and treatments
- 2023: 422024: 5429%
Dr. Zimmerman compared with the Rhode Island median for psychiatrists, 2024
- Dr. Zimmerman
- Rhode Island median
- Medicare services
- 130vs 1199% above
- Medicare patients
- 20vs 3543% below
- Part D claims
- 357vs 1153.1 times
Medians across 271 psychiatrists in Rhode Island 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 psychiatrists in Rhode Island.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Zimmerman treated 20 Medicare patients in 2024, average age 69
CMS counts 20 Medicare patients who saw Dr. Zimmerman in 2024. The largest group is 85 and over, with 0 patients. 75% of them have depression, and 75% have high cholesterol. Their average risk score is 1.01, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zimmerman's median patient age at 39, with 71% women.
Dr. Zimmerman's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Zimmerman's Medicare patients, 2024
- Depression75%
- High cholesterol75%
- Mood disorders75%
- Anxiety70%
- High blood pressure55%
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 39
Patient panel by sex, all payers
- Women71%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Zimmerman wrote 457 Medicare Part D claims in 2024
In 2024, Dr. Zimmerman wrote 457 Medicare Part D claims for 43 patients. 100% of them were for generic drugs. CMS names the drug for 357 of them, across 14 drugs with 11 or more claims each, at $6,705 in total drug cost. In 2023, CMS named 348 claims across 12 drugs.
Dr. Zimmerman's Part D claims by kind of drug, 2024
- Generic455 claims100%
- Brand-name and other2 claims0%
Dr. Zimmerman'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. Zimmerman's Part D claims, 2024
- Antipsychotics, patients 65 and over13%61 of 457 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: 3482024: 3573%
Drugs named by CMS: 14 in 2024, 12 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
Dr. Mark Zimmerman offers telehealth to Medicare patients
Dr. Zimmerman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zimmerman as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mark Zimmerman has 268 publications on record
Dmand AI links 268 papers to Dr. Zimmerman, published from 2006 to 2024. 2018 was the busiest year, with 17. The most frequent topics are Psychiatric Status Rating Scales, Depressive Disorder, Major and Diagnostic and Statistical Manual of Mental Disorders. Dr. Zimmerman has published most often in J Clin Psychiatry. Dr. Zimmerman's most frequent co-authors are Naureen M. Attiullah, MD, Cristina Toba, MD and Joseph F. Goldberg, MD.
Dr. Zimmerman's papers by year, 2015 to 2024
Topics Dr. Zimmerman writes about most
- Psychiatric Status Rating Scales
- Depressive Disorder, Major
- Diagnostic and Statistical Manual of Mental Disorders
- Outpatients
- Psychometrics
- Comorbidity
- Bipolar Disorder
- Rhode Island
Dr. Zimmerman's most frequent co-authors
- Naureen M. Attiullah, MD17 shared papers
- Cristina Toba, MD14 shared papers
- Joseph F. Goldberg, MD3 shared papers
Recent publications by Dr. Zimmerman
J Clin Psychiatry
Neuropsychopharmacol 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 psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark Zimmerman received $317,272 in industry payments from 2016 to 2025
CMS Open Payments shows 255 general payments to Dr. Zimmerman from 21 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 31% of the total. ITI, Inc. paid the most, $110,906.
General payments to Dr. Zimmerman by program year, 2016 to 2025
General payments to Dr. Zimmerman by kind, 2016 to 2025
- Speaker and faculty fees$96,89831%
- Consulting fees$82,98726%
- Royalties and licenses$80,00025%
- Travel and lodging$51,72716%
- Food and beverage$5,6602%
Companies that paid Dr. Zimmerman the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark 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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Mark 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. Mark Zimmerman's NPI number?
Dr. Mark Zimmerman's NPI number is 1508842857. It was assigned on December 19, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Zimmerman?
Dr. Mark Zimmerman is a psychiatrist in Providence, Rhode Island. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Mark Zimmerman practice?
Dr. Zimmerman practices at 593 Eddy St, Providence, RI 02903. Dr. Zimmerman's primary practice is Rhode Island Hospital/Hasbro Children's in Providence, Rhode Island. Dmand AI also links Dr. Zimmerman to 1 group practice or clinic.
What is Dr. Mark Zimmerman's office phone number?
The practice phone on file for Dr. Zimmerman is (401) 444-7585.
What is Dr. Mark Zimmerman's medical license number?
Dr. Zimmerman holds Rhode Island license MD08762.
What medical group is Dr. Mark Zimmerman part of?
Dr. Zimmerman is linked to South County Psychiatry.
Does Dr. Mark Zimmerman accept Medicare?
Yes. CMS data shows Dr. Zimmerman billed Medicare for 130 services in 2024, and Dr. Zimmerman accepts Medicare assignment.
Does Dr. Mark Zimmerman offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zimmerman as offering telehealth services.
How many Medicare patients does Dr. Mark Zimmerman see?
CMS counts 20 Medicare patients who saw Dr. Zimmerman in 2024, with an average age of 69.
What services does Dr. Mark Zimmerman bill to Medicare?
In 2024, Dr. Zimmerman's most billed Medicare services were office visit, established patient (99214) and psychiatric service (90833).
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What drugs does Dr. Mark Zimmerman prescribe most?
In 2024 Medicare Part D data, Dr. Zimmerman's most prescribed drugs by claims were Clonazepam, Bupropion XL and Duloxetine HCl.
Has Dr. Mark Zimmerman received payments from drug or device companies?
CMS Open Payments shows $317,272 in general payments to Dr. Zimmerman from 21 companies from 2016 to 2025. The largest total came from ITI, Inc.
How long has Dr. Mark Zimmerman been practicing?
Dr. Zimmerman graduated from medical school in 1990, 36 years ago.
Does Dr. Mark Zimmerman do research?
Dmand AI links 268 publications to Dr. Zimmerman, published from 2006 to 2024.
Who does Dr. Mark Zimmerman publish with?
Dr. Zimmerman's most frequent co-authors are Naureen M. Attiullah, MD (17 shared papers), Cristina Toba, MD (14 shared papers) and Joseph F. Goldberg, MD (3 shared papers).
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